{"title":"Mercury Outboard Engine Ignition Components","description":"\u003ch2\u003e\u003cstrong\u003eMercury Marine Motor Ignition Components Resources and Information\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eEvery electric start Mercury outboard has an ignition switch that opens and shuts the starter solenoid. Marine ignition is designed for performance marine applications where a high energy and reliable ignition is a necessity. PartsVu is happy to offer a wide selection of quality certified Mercury outboard motor ignition parts to fit your outboard engine’s exact specifications. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWe also regularly publish helpful resources to help you maintain your Mercury outboard motor, such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003ca href=\"https:\/\/partsvu.com\/pages\/download-mercury-100-hour-maintenance-guides?___store=default\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Outboard 100-hour Service Guides\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003ca href=\"https:\/\/partsvu.com\/pages\/mercury-maintenance-schedule\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Outboard Service Schedule\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/where-can-i-find-my-mercury-outboard-serial-number\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Outboard Serial Number Lookup\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cstrong\u003eMercury Outboard Engine Ignition Components FAQs\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch3\u003e\n\u003cstrong\u003eHow do I \u003c\/strong\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/how-to-start-a-mercury-outboard-motor\"\u003e\u003cstrong\u003estart my Mercury outboard\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e engine? \u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury makes a 2-stroke and 4-stroke engine. The 4-stroke engines have risen in popularity due to their reduced noise, fuel efficiency, and greater longevity. Because they’ve grown in popularity in recent years, most of them tend to be newer. Typically, they’re as easy to start as tilting them down and turning the key. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIn contrast, a carbureted 2-stroke may not be as simple to start.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eFirst, tilt the engine so that the fuel can more easily reach the carburetor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePrime the bulb until it’s too hard to squeeze\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhile in neutral, advance the throttle to ⅔\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eTurn the key, push to choke and crank\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eRelease the choke and return to neutral\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\u003cstrong\u003eHow do I start a flooded Mercury outboard motor?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhat causes a flooded \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-marine-outboard-motors\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury outboard motor\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, and what does it mean? A flooded motor has too much fuel in the cylinder, and it can therefore be very difficult– or impossible– to start. A strong smell of gasoline may indicate that this has occurred. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eEven if your motor does start while flooded, it’s important to address it immediately anyway. Running a flooded motor can damage the whole system, leading to a much larger (and more expensive) set of problems. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eNow, to address the problem: wait about five minutes before you clear-flood start the engine. You do this by moving the throttle to the clear-throttle or wide-open throttle position and crank your engine. This allows air to enter the engine, but not fuel, and should get things moving along. It may take a few tries for this to be effective.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow do I manually start an electric start outboard engine? \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf the engine is under 25HP, you shouldn’t have too much trouble removing the cowl cover and using the emergency cord to pull-start. This is generally possible for engines up to 50HP, but it will be increasingly difficult the higher the horsepower. To do this:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eEnsure that the key is in the on position and that the shift is in neutral \u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you’re using a rope, tie a knot so that the rope can be secured in the notch in the flywheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eWrap the rope around the flywheel in the correct direction for your engine, which is most likely clockwise\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePull repeatedly until the engine starts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ePut the cowling back on once the flywheel stops spinning\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf this doesn’t solve your problem, you may need to go through a more thorough troubleshooting process. Our guide, \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/why-your-mercury-outboard-motor-stopped-working?amp%3Bitm_campaign=blog-why-your-mercury-outboard-motor-stopped-working\u0026amp;amp%3Bitm_medium=in-text\u0026amp;itm_source=blog-how-to-start-a-mercury-outboard-motor\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhy Your Mercury Outboard Motor Stopped Working\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, outlines everything you’ll need to check in greater detail, with handy flowcharts for reference.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy did my Mercury outboard motor stop working?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eYour Mercury outboard ignition system is responsible for firing up the engine and keeping it running. Because checking this system may involve sparks and heat, keep flammable liquids away. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe first part of the ignition system to check is the spark plugs. Clean and adjust the spark plugs– they may need to be replaced. Learn what to look for and how to perform spark plug replacement with\u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/marine-spark-plugs-everything-you-need-to-know?amp%3Bitm_campaign=blog-marine-spark-plugs-everything-you-need-to-know\u0026amp;amp%3Bitm_medium=in-text\u0026amp;itm_source=blog-why-your-mercury-outboard-motor-stopped-working\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e our comprehensive guide.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck the ignition spark with a\u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/?amp%3Bitm_campaign=spark-gap-tester\u0026amp;amp%3Bitm_medium=in-text\u0026amp;amp%3Bitm_source=blog-why-your-mercury-outboard-motor-stopped-working\u0026amp;q=spark%20gap%20tester\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e spark gap tester\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e. If you’ve got a good spark, make sure that the air gap is within specification. Adjust it if needed. If you have a good spark and the gap is within specification, the problem will likely not be found in the ignition system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eHowever, if you don’t have a good spark, salt buildup on the spark plug caps or ignition coil leads could be causing problems. You’ll also need to check both the spark plug caps and ignition coil leads for proper resistance. Replace degraded parts. When there is no salt buildup and both parts have proper resistance, check the ECM output peak voltage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf your spark plugs don’t seem to be the issue, check that the electric oil pump and oil level sensor are in good condition. If so, check the reed valve for its condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow do I change my Mercury 4-stroke outboard spark plugs?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eFor most applications, the \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/mercury-4-stroke-100-hour-service-step-2-spark-plugs-compression\"\u003e\u003cspan style=\"font-weight: 400;\"\u003espark plugs\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e come pre-gapped, but it is advisable to re-check gap to make sure that plugs were not damaged during manufacturing or shipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhile removing the old spark plugs, keep track of which plugs come from which cylinders.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eNote if the plug appears to be wet from water, oil, or gasoline.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Note if the plug exhibits evidence of heavy carbon deposits or other fowling as well as any rust – all indicative of problems.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you were to take your engine to a dealer for your 100-hour service, they would perform a compression test by connecting a compression gauge to the individual cylinders and using the starter motor to turn over the engine. By measuring the engine’s ability to pressurize the cylinder, you can glean information about the condition of the engine internals. To perform this test at home, you will either need a remote starter button, or a friend who can turn the ignition key with the kill lanyard removed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThis cranking with the ignition disabled will also prime the \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-marine-four-stroke-outboard-oil-change-kits\"\u003e\u003cspan style=\"font-weight: 400;\"\u003efresh oil\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e around the block, reducing friction at startup after the service. Repeat testing for all cylinders and compare results. Readings will vary from gauge to gauge, so the test is more about measuring the difference in readings with ideal results being less than 10 percent variance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAfter the compression test is completed – or skipped – you can now begin installing your new spark plugs. For ease of future removal and to reduce the risk of thread damage to the cylinder head, apply a tiny amount of anti-seize compound to the threads of the plug. Use care to avoid contacting the electrode or porcelain center of the plug. Thread the plugs into the cylinder head by hand using caution not to cross thread.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eMost modern spark plugs use a crush washer that will press down and provide a tight seal as you tighten. Full torque is between 18-21 ft. lbs. Reinstall the plug wires or coils in the same order they came off. Mercury’s service manual recommends using Loctite 271 (Red High Strength) on the bolts that hold the pencil coils over the spark plug, but we find\u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-threadlocker-10ml-92-809821?amp%3Bitm_campaign=mercury-threadlocker-92-809821\u0026amp;amp%3Bitm_medium=in-text\u0026amp;itm_source=blog-mercury-4-stroke-100-hour-service-step-2-spark-plugs-compression\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Loctite 242\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e (Blue Removable Strength) might be a better choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow do I change my Mercury 2-stroke outboard spark plugs?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhile removing the old spark plugs, keep track of which plugs come from which cylinders.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Note if the plug appears to be wet from water, oil, or gasoline.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e Note if the plug exhibits evidence of heavy carbon deposits or other fowling as well as any rust – all indicative of problems.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you were to take your engine to a dealer for your \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-outboard-complete-100-300-hour-service-kits\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e100-hour service\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, they would likely perform a compression test by connecting a compression gauge to the individual cylinders and using the starter motor to turn over the engine. By measuring the engine’s ability to pressurize the cylinder, you can glean information about the condition of the engine internals. To perform this test at home, you will either need a remote starter button, or a friend who can turn the ignition key with the kill lanyard removed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThis cranking with the ignition disabled will also prime the fresh oil around the block, reducing friction at startup after the service. Repeat testing for all cylinders and compare results. Readings will vary from gauge to gauge, so the test is more about measuring the difference in readings with ideal results being less than 10 percent variance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAfter the compression test is completed – or skipped – you can now proceed with your Mercury 2-stroke spark plugs and compression service by installing your new spark plugs. For ease of future removal and to reduce the risk of thread damage to the cylinder head, apply a tiny amount of anti-seize compound to the threads of the plug. Use care to avoid contacting the electrode or porcelain center of the plug. Thread the plugs into the cylinder head by hand using caution not to cross thread.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eMost modern spark plugs use a crush washer that will press down and provide a tight seal as you tighten. Full torque is between 18-21 ft. lbs. Reinstall the plug wires or coils in the same order they came off.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWill a corroded ignition coil for Mercury outboard engines still work?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eCorroded ignition coils increase resistance in the circuit, which weakens spark strength. This may cause rough idle, poor acceleration, or hard starts. Even if the engine runs, corrosion usually worsens until the coil fails completely. Replacement is strongly recommended once corrosion is visible.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCorrosion on the ignition coil can cause electrical resistance that can interfere with the flow of current and weaken the spark that is needed to ignite the fuel in the engine. Over time, the corrosion can worsen and lead to a complete failure of the ignition coil.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you suspect that the ignition coil on your Mercury outboard engine is corroded, it's best to have it inspected and tested by a qualified technician. In most cases, a corroded ignition coil will need to be replaced in order to ensure proper engine performance and reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat are the most common Mercury outboard ignition problems?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThere are several common ignition problems that can occur with Mercury outboard motors. Here are a few examples:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eFaulty spark plugs\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: If the spark plugs are worn or fouled, it can cause the engine to misfire or fail to start.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eBad ignition coils\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Ignition coils are responsible for providing the electrical charge that is needed to ignite the fuel in the engine. If a coil fails, the engine may misfire or fail to start.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eFailed stator or trigger\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: The stator and trigger are part of the engine's ignition system and are responsible for generating the electrical charge that is needed to power the ignition coils. If these components fail, the engine may not start or may run poorly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eWiring issues\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Problems with the wiring or connections in the ignition system can also cause issues with starting or running the engine.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eFailed ignition switch\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: If the ignition switch fails, it can prevent the engine from starting or cause it to shut off unexpectedly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eFuel system issues\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Problems with the \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-outboard-fuel-oil-system-components\"\u003e\u003cspan style=\"font-weight: 400;\"\u003efuel system\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, such as a clogged fuel filter or faulty fuel pump, can also cause ignition problems by preventing the engine from getting enough fuel.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\u003cstrong\u003eWhich Mercury outboard parts do I need to replace my ignition?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe specific parts you will need to replace the ignition on your Mercury outboard will depend on the make and model of your engine. However, some common parts that may need to be replaced include the ignition switch, ignition coil, spark plugs, and spark plug wires.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eTo ensure that you have all the necessary parts, it's recommended that you consult your engine's manual or contact a certified Mercury technician for guidance on the exact parts you will need. They will be able to provide you with specific recommendations and help ensure that your ignition replacement is performed safely and correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow to wire a Mercury outboard ignition switch?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWiring a Mercury outboard ignition switch can vary depending on the specific model and year of the motor, as well as the type of ignition switch being used. Generally, it's recommended to follow the wiring diagram included with the ignition switch to ensure proper installation. However, if you're unsure about how to wire the switch or if you're not comfortable working with electrical components, it's always best to consult a qualified marine technician or dealer for assistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat safety precautions should I follow for Mercury outboard ignition wiring?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWhen working with Mercury outboard ignition wiring, follow these safety basics to prevent electrical shock, fire risk, and component damage:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eDisconnect the battery before any work to de-energize the system.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eKeep flammable liquids away from the work area and any spark-producing parts.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eWear protective gear: rubber gloves and safety glasses.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eWork in a dry, well-ventilated space to reduce shock and fume hazards.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eDouble-check wiring diagrams before reconnecting; confirm colors\/terminals match your model.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eInspect wiring and connectors for cracks, corrosion, or heat damage; replace compromised parts first.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eFollow manufacturer guidelines for your exact engine and ignition components (torque specs, sequences).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eTest the ignition after reassembly (spark\/starts\/idle) before heading out on the water.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf you’re unsure at any step, consult a certified Mercury technician.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow to replace Mercury outboard ignition switch?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eTo replace the ignition switch on a Mercury outboard motor, you'll typically need to remove the old switch from the dash or console, disconnect the wiring harness, and install the new switch in its place. Again, the exact steps can vary depending on the specific motor and switch, so it's always best to consult the manufacturer's instructions or a qualified marine technician for guidance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow to troubleshoot Mercury outboard ignition?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you're experiencing issues with your Mercury outboard ignition system, there are several steps you can take to troubleshoot the problem. First, check the battery to make sure it's fully charged and in good condition. Next, check the spark plugs and ignition coils to make sure they're functioning properly. You may also want to check the wiring and connections to ensure they're secure and free of damage or corrosion. If you're unable to identify the problem or if the issue persists, it's best to consult a qualified marine technician or dealer for further diagnosis and repair.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow long does a Mercury outboard ignition switch last?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe lifespan of a Mercury outboard ignition switch can vary depending on several factors, such as the quality of the switch, how often it's used, and the environmental conditions in which it's used.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eMost Mercury ignition switches last 5–10 years under normal use, while ignition coils often last the life of the motor if properly maintained. Premature wear happens faster in saltwater conditions or with neglected spark plug replacement. Signs of failure include difficulty turning the key, weak spark, or intermittent stalling.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIt's important to keep an eye out for signs of wear or damage to the ignition switch, such as difficulty turning the key or a loose connection, and replace it promptly if necessary. Routine maintenance and inspection can also help prolong the lifespan of the switch and ensure reliable operation of the outboard motor.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCan a Mercury outboard ignition coil replacement be performed by most amateur boaters?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplacing a Mercury outboard ignition coil may be possible for some amateur boaters, but it depends on their level of experience and comfort with mechanical work.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you are familiar with basic engine maintenance and have the necessary tools, replacing an ignition coil on a Mercury outboard may be a straightforward task. However, if you are inexperienced with engine work or unsure about how to proceed, it's best to consult a professional mechanic or technician.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eImproper installation of an ignition coil can cause further damage to the outboard motor, and may lead to more costly repairs down the line. It's important to take the necessary precautions and ensure that the replacement is done correctly to avoid any potential issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat is a Mercury outboard thunderbolt ignition?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Mercury Thunderbolt ignition is a type of ignition system used on some older Mercury outboard motors. It was first introduced in the 1960s and was used on various Mercury outboard models until it was eventually replaced by newer ignition systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Thunderbolt ignition system uses a set of contact points to create a spark that ignites the fuel in the engine. The system also includes a capacitor that stores electrical energy and helps to ensure a strong spark. The Thunderbolt ignition was known for its reliability and performance, and was a popular choice among boaters in its time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhile the Thunderbolt ignition system is no longer used in new Mercury outboard motors, it is still found on some older models that are still in use today.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cstrong\u003e2-Stroke Carb Models\u003c\/strong\u003e\u003cspan\u003e – more prone to fouled plugs and cold-start flooding.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\n\u003cstrong\u003e4-Stroke EFI Models\u003c\/strong\u003e\u003cspan\u003e – typically easier starts, but sensitive to coil resistance issues.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eOlder Thunderbolt Ignition Systems\u003c\/strong\u003e – reliable, but points and capacitors require periodic inspection.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you have an older Mercury outboard with a Thunderbolt ignition, it's important to keep up with regular maintenance and inspections to ensure that the ignition system is functioning properly.\u003c\/span\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat should I do if I lose my Mercury outboard motor ignition key?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you lose your Mercury outboard motor ignition key, there are a few steps you can take to get a replacement key:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eContact a Mercury dealer\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: The best and easiest way to get a replacement key is to contact your nearest Mercury dealer. They will ask you for your engine serial number and can cut a new key for you.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eCall a locksmith\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: A locksmith may also be able to make a replacement key for your Mercury outboard motor. However, they may need to visit your boat to make the key, which can be inconvenient.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eOrder online\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: There are some online retailers that sell Mercury outboard motor ignition keys. However, you will need to provide them with your engine serial number and wait for the key to be shipped to you.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRegardless of which option you choose, it is important to have a spare key made so that you do not get stranded on the water in case you lose your key again.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat provides ignition in each engine cylinder?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIn most outboard engines, ignition in each engine cylinder is provided by a spark plug that ignites the fuel mixture inside the cylinder. The ignition system generates a high voltage electrical charge that travels through the spark plug wire to the spark plug, creating a spark that ignites the fuel and air mixture.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow do you test an outboard ignition module?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eTesting an outboard ignition module requires specialized tools and knowledge. A common test is to use a digital multimeter to check the resistance of the ignition coil, which should be within the manufacturer's specified range. Another test involves checking the output voltage of the module while the engine is cranking. If you suspect a problem with your outboard ignition module, it's best to consult a professional mechanic or technician to diagnose and repair the issue.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat are the symptoms of a bad trigger on an outboard?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eA bad trigger on an outboard can cause a variety of symptoms, including difficulty starting the engine, intermittent stalling, and loss of power. The engine may also run poorly or misfire, and the tachometer may not function correctly. If you suspect a problem with the trigger on your outboard, it's important to have it inspected and repaired as soon as possible to avoid further damage to the engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHow does a marine ignition switch work?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eA marine ignition switch is used to turn the engine on and off, and to control the electrical power to various components on the boat. The switch works by completing or interrupting the electrical circuit that runs from the battery to the ignition system and other electrical components. When the switch is turned to the \"on\" position, it completes the circuit and allows electricity to flow, powering the engine and other systems on the boat. When the switch is turned to the \"off\" position, it interrupts the circuit and cuts off the flow of electricity, shutting down the engine and other systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat are the most common Mercury outboard ignition switch problems?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe most common problems with Mercury outboard ignition switches are:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eElectrical issues\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Faulty wiring, a corroded or loose connection, or a blown fuse can prevent the switch from functioning properly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eIgnition switch failure\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Over time, the ignition switch can wear out or become damaged, preventing it from turning or working properly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eKey problems\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: Worn, damaged or lost keys can cause issues with the ignition switch.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eIgnition module failure\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: The ignition module controls the spark plug firing in the cylinders, and if it fails, the engine will not start or run properly.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" style=\"font-weight: 400;\"\u003e\n\u003cstrong\u003eSafety switch failure\u003c\/strong\u003e\u003cspan style=\"font-weight: 400;\"\u003e: The safety switch is a critical component that prevents the engine from starting if it is not in the neutral position or if the boat is not in the water. If the safety switch fails, the engine may not start or may shut off while underway.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you are experiencing issues with your Mercury outboard ignition switch, it is important to have it inspected by a qualified technician to determine the root cause of the problem and to ensure that your boat is safe to operate.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs it smart to buy a used Mercury outboard ignition coils for sale?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eIt is generally not recommended to buy used ignition coils for your Mercury outboard motor. Ignition coils are critical components of your engine's ignition system, and they are subject to wear and tear over time. Used coils may be damaged or have lower performance than new ones, and they may fail prematurely, leading to engine misfires or even engine damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eFurthermore, it can be difficult to determine the condition of a used ignition coil, as it may appear to be in good working order but may fail soon after installation. It is usually best to purchase new, high-quality ignition coils from a trusted supplier to ensure the safety and reliability of your Mercury outboard motor.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's the difference between a Mercury outboard 10 wire ignition switch and a Mercury outboard 6 wire ignition switch?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe primary difference between a Mercury outboard 10-wire ignition switch and a Mercury outboard 6-wire ignition switch is the number of wires used in the switch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe 10-wire ignition switch is typically used on larger Mercury outboard engines, and it features additional wires that control various functions such as the choke, tilt and trim, and accessory power. This switch is more complex and requires a more sophisticated wiring harness to connect to the engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMake sure your Mercury Marine outboard starts up every time by replacing your Mercury ignition components with genuine OEM Mercury replacement parts from PartsVu.\u003c\/p\u003e","products":[{"product_id":"standard-spark-plugs-ngk-spark-plugs-cr6hs","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - CR6HS","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":45626106577187,"sku":"PV453761","price":3.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV453761.jpg?v=1698781712"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-bpr9es","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - BPR9ES","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":45626212483363,"sku":"PV529065","price":3.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV529065_6.jpg?v=1698781679"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-5422","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - 5422","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":45626261340451,"sku":"PV517207","price":3.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV517207_6.jpg?v=1698781692"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-7829","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - 7829","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":45626266681635,"sku":"PV442512","price":3.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV442512_6.jpg?v=1698781715"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-6326","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - 6326","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":45626266714403,"sku":"PV450537","price":4.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV450537_6.jpg?v=1698781713"},{"product_id":"mercury-ngk-lkar7c-9-33-8m0204737","title":"Mercury – NGK LKAR7C-9 Spark Plug | Ignition System | Trivalent Metal Finish | 8M0204737","description":"\u003ch2 data-start=\"0\" data-end=\"93\"\u003e\u003cstrong data-start=\"0\" data-end=\"93\"\u003eMercury – NGK LKAR7C-9 Spark Plug | Ignition System | Trivalent Metal Finish\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"95\" data-end=\"108\"\u003eOverview\u003c\/h3\u003e\n\u003cp data-start=\"109\" data-end=\"599\"\u003eThere’s a special kind of confidence that comes when your engine fires instantly—no stumble, no hesitation, just a clean, steady start that sets the tone for the day. The right spark plug is a big part of that feeling. This genuine \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMercury Marine\u003c\/span\u003e\u003c\/span\u003e replacement plug is built to deliver consistent ignition in the marine environment, so whether you are launching at dawn or cruising back to the dock after a long run, your motor stays smooth, responsive, and dependable.\u003c\/p\u003e\n\u003ch3 data-start=\"601\" data-end=\"618\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"621\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"621\" data-end=\"683\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eNGK\u003c\/span\u003e\u003c\/span\u003e LKAR7C-9 spark plugs\u003c\/strong\u003e designed for stable ignition and consistent performance\u003c\/li\u003e\n\u003cli data-start=\"744\" data-end=\"851\"\u003e\n\u003cstrong data-start=\"744\" data-end=\"763\"\u003eFactory set gap\u003c\/strong\u003e to match manufacturer specifications (always verify against your engine requirements)\u003c\/li\u003e\n\u003cli data-start=\"854\" data-end=\"943\"\u003e\n\u003cstrong data-start=\"854\" data-end=\"881\"\u003eTrivalent metal plating\u003c\/strong\u003e helps resist corrosion in humid and salt-prone environments\u003c\/li\u003e\n\u003cli data-start=\"946\" data-end=\"1028\"\u003e\n\u003cstrong data-start=\"946\" data-end=\"970\"\u003eDurable construction\u003c\/strong\u003e supports dependable spark quality and long service life\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1117\"\u003e\n\u003cstrong data-start=\"1031\" data-end=\"1061\"\u003eSecure terminal connection\u003c\/strong\u003e helps maintain positive contact with spark plug leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1176\" data-end=\"1208\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1211\" data-end=\"1295\"\u003eFits select Mercury and Mariner outboard engines specifying \u003cstrong data-start=\"1271\" data-end=\"1287\"\u003eNGK LKAR7C-9\u003c\/strong\u003e plugs\u003c\/li\u003e\n\u003cli data-start=\"1298\" data-end=\"1398\"\u003eCommonly used on engines that demand \u003cstrong data-start=\"1335\" data-end=\"1351\"\u003equick starts\u003c\/strong\u003e, \u003cstrong data-start=\"1353\" data-end=\"1368\"\u003esteady idle\u003c\/strong\u003e, and \u003cstrong data-start=\"1374\" data-end=\"1396\"\u003eclean acceleration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1401\" data-end=\"1519\"\u003eIdeal for boats that spend time \u003cstrong data-start=\"1433\" data-end=\"1445\"\u003etrolling\u003c\/strong\u003e, \u003cstrong data-start=\"1447\" data-end=\"1479\"\u003eidling through no-wake zones\u003c\/strong\u003e, and making frequent throttle changes\u003c\/li\u003e\n\u003cli data-start=\"1522\" data-end=\"1616\"\u003eAlways confirm fitment using your owner’s manual or by matching your current spark plug number\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1618\" data-end=\"1655\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/h3\u003e\n\u003cp data-start=\"1656\" data-end=\"1993\"\u003eA spark plug does more than help the engine start—it influences how the motor behaves all day. With LKAR7C-9 plugs, you are aiming for clean combustion, steady idle, and crisp throttle response. Fresh plugs help reduce misfires and hesitation, especially after long idle periods or repeated short trips where carbon buildup can creep in.\u003c\/p\u003e\n\u003cp data-start=\"1995\" data-end=\"2363\"\u003eThe trivalent plating matters in real boating conditions. Moisture, salt air, and temperature swings can lead to corrosion or seized threads over time. A corrosion-resistant finish helps make future removal easier and supports more consistent service intervals. Swap a full set at once and you will often feel a smoother, more even-running engine across all cylinders.\u003c\/p\u003e\n\u003ch3 data-start=\"2365\" data-end=\"2381\"\u003eWhy Buy OEM\u003c\/h3\u003e\n\u003cp data-start=\"2382\" data-end=\"2936\"\u003eMarine engines operate in a harsher world than most vehicles—constant humidity, vibration, and rapid temperature changes. That is why genuine Mercury-specified spark plugs matter. OEM-matched plugs are selected to meet the engine’s requirements for heat range, fit, and ignition characteristics. Aftermarket look-alikes can vary in ways you cannot see, and those small differences can show up as rough idle, weaker acceleration, or shortened plug life. When it comes to ignition, using the correct plug is one of the simplest ways to protect performance.\u003c\/p\u003e\n\u003ch3 data-start=\"2938\" data-end=\"2946\"\u003eFAQ\u003c\/h3\u003e\n\u003cp data-start=\"2948\" data-end=\"3174\"\u003e\u003cstrong data-start=\"2948\" data-end=\"3010\"\u003eQ1: Which Mercury engines use the NGK LKAR7C-9 spark plug?\u003c\/strong\u003e\u003cbr data-start=\"3010\" data-end=\"3013\"\u003eIt fits specific Mercury and Mariner outboards that call for \u003cstrong data-start=\"3074\" data-end=\"3090\"\u003eNGK LKAR7C-9\u003c\/strong\u003e. Always confirm in your owner’s manual or by matching the plug currently installed.\u003c\/p\u003e\n\u003cp data-start=\"3176\" data-end=\"3363\"\u003e\u003cstrong data-start=\"3176\" data-end=\"3233\"\u003eQ2: What makes these better than generic substitutes?\u003c\/strong\u003e\u003cbr data-start=\"3233\" data-end=\"3236\"\u003eThey are chosen to match Mercury’s ignition requirements and include a corrosion-resistant finish suited for marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"3365\" data-end=\"3533\"\u003e\u003cstrong data-start=\"3365\" data-end=\"3419\"\u003eQ3: How do I confirm I am ordering the right plug?\u003c\/strong\u003e\u003cbr data-start=\"3419\" data-end=\"3422\"\u003eCheck your manual or remove one plug and confirm the marking reads \u003cstrong data-start=\"3489\" data-end=\"3501\"\u003eLKAR7C-9\u003c\/strong\u003e. Match the plug number exactly.\u003c\/p\u003e\n\u003cp data-start=\"3535\" data-end=\"3702\"\u003e\u003cstrong data-start=\"3535\" data-end=\"3602\"\u003eQ4: Can these be used in saltwater and freshwater environments?\u003c\/strong\u003e\u003cbr data-start=\"3602\" data-end=\"3605\"\u003eYes. The plating helps resist corrosion in both environments, especially in humid or coastal use.\u003c\/p\u003e\n\u003cp data-start=\"3704\" data-end=\"3911\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"3704\" data-end=\"3744\"\u003eQ5: Is installation straightforward?\u003c\/strong\u003e\u003cbr data-start=\"3744\" data-end=\"3747\"\u003eYes. Use a spark plug socket and install to the correct torque specification for your engine. If you are unsure, a marine technician can handle the service quickly.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626523943203,"sku":"33-8M0204737","price":14.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8M0204737_2.jpg?v=1761308267"},{"product_id":"mercury-solenoid-valve-877805t","title":"Mercury - Solenoid valve - 877805T","description":"\u003cp\u003eSolenoid valve\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626535313699,"sku":"877805T","price":94.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV485252.jpg?v=1698794679"},{"product_id":"mercury-ac-mr43lts-33-862029-sold-individually","title":"Mercury – ACDelco MR43LTS Marine Spark Plug | Specialty Marine Ignition Series | Nickel Alloy \u0026amp; Copper Core | 862029","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – ACDelco MR43LTS Marine Spark Plug | Specialty Marine Ignition Series | Nickel Alloy \u0026amp; Copper Core | 862029\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s something satisfying about a marine engine that fires up instantly—a crisp spark, a steady rumble, and the quiet assurance that today’s trip is going to go smoothly. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen you spend your weekends on the water, you start to appreciate the parts that make those easy starts possible. The Mercury Marine part number 862029 ACDelco MR43LTS Spark Plug is one of those small but essential components. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt’s built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to hold up in a harsh marine environment and deliver a consistent spark that keeps your engine running strong, whether you’re idling out of the marina or opening up the throttle across open water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSpecialty marine spark plug built with a nickel alloy tip and copper core for durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eRibbed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e suppressor seal helps reduce misfires and improve ignition stability\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePre-gapped to manufacturer specifications for easy installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned to match Mercury Marine OEM ignition requirements\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSupports smooth starts, clean combustion, and reliable overall engine performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e a wide range of Mercury and MerCruiser \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003emarine engines requiring MR43LTS plugs\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommonly used in sterndrive and inboard platforms built by General Motors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for cruisers, sport boats, runabouts, pontoon boats, and other recreational vessels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAlways verify fit using your owner’s manual recommendations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e A great spark plug doesn’t call much attention to itself, but you notice the difference every time you start the engine.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e With the 862029 ACDelco MR43LTS installed, your ignition feels tight, responsive, and predictable. Engines start faster, idle smoother, and run cleaner thanks to the copper core’s excellent heat transfer and the nickel alloy’s ability to resist wear in demanding marine conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eUnderway, the plug supports a steady spark that keeps your engine running at its best—whether you’re cruising at low speed, towing a wakeboarder, or heading into deeper water for a full day offshore. Combustion feels smoother, throttle response steadier, and overall performance more dependable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhat boaters really appreciate is how forgiving and straightforward installation is. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBecause the plug comes pre-gapped based on engine specifications, you \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimply\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e remove the old plug, thread this one in, tighten it properly, and get back on the water\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e No\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e complicated prep, no guesswork.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurability is another highlight. The ribbed suppressor cap helps reduce flashover and supports long-term ignition stability, even in damp or salty environments. Instead of cleaning old plugs—an approach that rarely restores full performance—you’ll get stronger results and better protection by replacing them outright.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Choosing a Mercury OEM-recommended spark plug means choosing a part engineered precisely for your engine’s ignition system. A\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eftermarket plugs may look similar, but slight differences in heat range, electrode material, or gap accuracy can lead to rough starts, reduced power, or long-term engine wear. With an OEM-fit MR43LTS plug, you’re getting the exact ignition performance Mercury intended—reliable, clean, and built for marine conditions. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e’s \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ea smart\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003einexpensive way to protect your investment and enjoy better performance every \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etrip\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines use the 862029 MR43LTS Spark Plug?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt’s designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for Mercury and MerCruiser engines that specify MR43LTS plugs. Always confirm with your owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this spark plug different from aftermarket versions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003euses\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM-approved materials, proper heat range, and factory-set \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egapping\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to ensure reliable\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eaccurate ignition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the correct replacement?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your engine’s spark plug chart or owner’s manual for MR43LTS. If listed, this is the correct part number.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can it be used in both freshwater and saltwater environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes—the materials and seal construction are designed for harsh, wet, and corrosive marine conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Definitely. With a spark plug socket and basic hand tools, installation is \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimple and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003equick\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626535805219,"sku":"33-862029","price":7.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/33-862029.jpg?v=1761308135"},{"product_id":"mercury-key-switch-kit-4-position-with-mounting-hardware-87-893353a03","title":"Mercury - Key Switch Kit - 4 Position - With Mounting Hardware - 87-893353A03","description":"\u003cp\u003eFour position keyswitch (Off, Accessory, Run and Start) Includes keyswitch, key cover, bezel, 2 1\/8 inch diameter. Mounting housing and mounting hardware, 7\/8 inch cut out.\u003c\/p\u003e \u003cp\u003eCan be used on DTS as well as non DTS installations.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626537836835,"sku":"87-893353A03","price":83.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/893353a03.jpg?v=1698794755"},{"product_id":"mercury-spark-plug-wires-8m0088014","title":"Mercury – Spark Plug Wire Set | EFI FourStroke Series | Marine-Grade Ignition Leads | 8M0088014","description":"\u003ch2\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Spark Plug Wire Set | EFI FourStroke Series | Marine-Grade Ignition Leads | 8M0088014\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a certain feeling you get when your outboard lights off instantly — a clean, confident rumble that tells you the ignition system is doing exactly what it should. When you rely on your boat to carry you through long days on the water, those small but essential pieces become a quiet source of trust. The Mercury 8M0088014 Spark Plug Wires are the kind of parts that keep that trust alive. They deliver a strong, steady spark that helps your 75–115 horsepower EFI FourStroke run smooth, responsive, and ready for whatever the day brings.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eComplete spark plug wire set designed for Mercury EFI FourStroke outboards.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eContains four precision-engineered marine ignition leads.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury specifications for consistent ohm resistance and strong spark delivery.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurable marine-grade insulation resists heat, vibration, and moisture.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for a tight, secure fit onto spark plugs and ignition coils.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEnsures clean combustion and reliable engine performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits Mercury 75, 90, and 115 horsepower EFI FourStroke outboards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with engines beginning at serial number 2B095049 and newer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for pontoons, bay boats, aluminum fishing rigs, skiffs, and general-purpose family boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for any Mercury FourStroke platform requiring high-quality ignition leads\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReliable spark plug wires may not be the flashiest upgrade, but you’ll absolutely feel the difference once they’re installed. These Mercury Marine ignition leads help your engine fire consistently, even on cool mornings or after long periods at idle. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYou’ll notice smoother acceleration when you push the throttle forward, steadier idle when you’re setting up for a drift, and cleaner combustion that keeps your outboard running at its best.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe wires themselves feel robust in your hands — flexible yet firm, with that “secure” click when you seat them onto the plugs. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe insulation is thick and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003econfident\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, built to resist saltwater spray, engine-compartment heat, and the constant vibration \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ethat comes from\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e long hours on the water.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Each wire is engineered to hold its shape without sagging or loosening over time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBecause the resistance \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis carefully validated\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e within Mercury’s specifications, the spark stays strong and consistent cylinder after cylinder. That means fewer misfires, better fuel efficiency, and an overall smoother-running engine. It’s one of those upgrades that reminds you how much small parts matter when it comes to real-world performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIgnition systems are sensitive. Even a \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esmall\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e variation in wire resistance or connector fit can throw off timing, weaken spark, or cause rough running. With genuine Mercury Marine spark plug wires, you get components specifically built for your engine’s design — with the correct length, resistance, and durability to keep everything firing the way it should. Aftermarket wires may fit, but they rarely match the long-term reliability, heat resistance, or precise electrical performance of OEM parts. Investing in the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eright\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewires\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e now protects your outboard, improves fuel economy, and helps you avoid headaches down the line.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the 8M0088014 Spark Plug Wire Set fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits Mercury EFI FourStroke outboards from 75 to 115 horsepower, beginning with serial number 2B095049 \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eand up\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes OEM spark plug wires better than aftermarket?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e They’re engineered with exact ohm resistance, marine-grade insulation, and precise connection points \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003edesigned specifically\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for Mercury’s ignition system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I be sure this is the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eright\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e set for my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your engine’s serial number and horsepower rating, or verify the part number in your owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Are these wires suitable for saltwater use?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes — they’re built with corrosion-resistant materials and insulation designed for harsh marine environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation simple for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Very. Replacing spark plug wires is a straightforward process that requires minimal tools and experience.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626566639907,"sku":"8M0088014","price":72.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/IMG_7236.jpg?v=1744401685"},{"product_id":"mercury-starter-motor-50-8m0142679","title":"Mercury - Starter motor - 50-8M0142679","description":"\u003cp\u003eStarter motor\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626576994595,"sku":"50-8M0142679","price":350.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV716357.jpg?v=1698809343"},{"product_id":"mercury-key-switch-3-position-with-decal-washer-3-4-inch-diameter-87-897716k01","title":"Mercury - Key Switch - 3 Position - with Decal\/Washer - 3\/4 Inch Diameter - 87-897716K01","description":"\u003cp\u003eThree position keyswitch with shorter key and mounting length (Off, Run and Start). Loose switch only. 3\/4 inch cut out. Includes switch with decal and washer. Can be used on DTS as well as Non DTS installations.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626580336931,"sku":"87-897716K01","price":61.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/897716k01.jpg?v=1698794745"},{"product_id":"mercury-key-switch-4-position-7-8-inch-diameter-87-893353a02","title":"Mercury - Key Switch - 4 Position - 7\/8 Inch Diameter - 87-893353A02","description":"\u003cp\u003eFour position keyswitch (Off, Accessory, Run and Start) Loose switch only. 7\/8 in. cut out.\u003c\/p\u003e \u003cp\u003eCan be used on DTS as well as non DTS installations.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626592231715,"sku":"87-893353A02","price":55.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/893353a02.jpg?v=1698794755"},{"product_id":"mercury-ignition-key-switch-kit-87-88107a5","title":"Mercury - Ignition Key Switch Kit - 87-88107A5","description":"\u003cp\u003eSWITCH KIT-IGN\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626593050915,"sku":"87-88107A5","price":67.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/88107a5_1.jpg?v=1698794763"},{"product_id":"mercury-spark-plug-ac-41-983-fits-mcm-496-mag-ho-and-mie-8-1l-ho-33-8m0129146","title":"Mercury – ACDelco Double Platinum Spark Plug | Ignition System | Nickel Alloy \u0026amp; Copper Core | 8M0129146","description":"\u003ch2\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – ACDelco Double Platinum Spark Plug | Ignition System | Nickel Alloy \u0026amp; Copper Core | 8M0129146\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a particular kind of comfort that comes from an engine that fires immediately—no hesitation, no uneven rumble, just a clean, confident start that tells you the day’s going to go right. That feeling isn’t accidental. It comes from parts like the Mercury 8M0129146 ACDelco GM Original Equipment Double Platinum Spark Plug doing their job exactly as they should. When you’re pushing a heavy MerCruiser through chop or easing into a tight marina, you want ignition you can trust every single time. This spark plug brings that kind of reliability—quietly, consistently, and without drama.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eD\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eouble platinum spark plug engineered for long-lasting ignition performance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eNickel alloy tip and copper core construction for stable conductivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRibbed suppressor seal designed to reduce misfires and improve acceleration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to match OEM specifications for MerCruiser 496 Mag, 496 Mag HO, and MIE 8.1L engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for full replacement rather than cleaning or refurbishing\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eE\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003engine \u0026amp; Boat Compatibility\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits MerCruiser 496 Mag sterndrive engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits MerCruiser 496 Mag HO engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits MerCruiser MIE 8.1L and 8.1L HO inboard engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for cruisers, sport boats, performance sterndrives, and larger offshore fishing boats\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen your spark plugs are fresh and properly matched to your engine, everything feels better. The throttle response tightens up. Starts become quick and predictable. And on long runs, you’ll feel the engine settle into that smooth, steady rhythm that only a well-maintained ignition system delivers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe 8M0129146 plug uses a copper core for consistent thermal control, which is crucial in big-block marine engines that run hot under load. The double platinum pads help the plug resist wear over hundreds of hours, delivering crisp ignition even after countless cycles. It’s the kind of part you install once and trust season after season.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYou’ll also notice fewer small annoyances—reduced sputtering, cleaner idle, and better fuel burn. Big displacement engines rely heavily on spark quality, and a tired plug can steal power without you immediately realizing it. With this Mercury Marine part, the difference feels real: cleaner combustion, steadier pull, and reliable performance whether you’re cruising at low speed or climbing onto plane.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIgnition isn’t a place to gamble. Mercury’s OEM spark plugs are built to match the engine’s heat range, firing demands, and design tolerances precisely. Aftermarket options may look similar, but differences in resistance, tip material, or heat control can cause fouling, rough idle, or even long-term engine damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eChoosing the genuine ACDelco\/Mercury plug gives you:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe correct heat range for your specific block\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaximum durability under marine load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFactory-level performance and efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA simple, stress-free replacement process\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf you’re already pulling the cowl or hatch to replace plugs, replacing all of them together ensures even performance across cylinders and prevents chasing issues later.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does the 8M0129146 spark plug fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits MerCruiser 496 Mag, 496 Mag HO, and MIE 8.1L \u0026amp; 8.1L HO engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this spark plug better than aftermarket versions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It’s built to exact OEM specs with double platinum durability, proper heat range, and materials designed specifically for marine use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know it’s the right plug for my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your owner’s manual—use only the plug listed by Mercury for your specific model.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this plug be used in both saltwater and freshwater environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. The materials and construction are designed to resist marine corrosion and maintain stable performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Most boat owners with basic mechanical experience can replace plugs easily. Just replace all plugs at the same time for best results.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932447068451,"sku":"33-8M0129146","price":20.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0129146_main.jpg?v=1761308172"},{"product_id":"laser-iridium-spark-plugs-ngk-spark-plugs-izfr5j","title":"LASER IRIDIUM SPARK PLUGS (NGK SPARK PLUGS) - IZFR5J","description":"\u003cul\u003e\n\u003cli\u003eOriginal equipment on many late model applications\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIridium at the fine-wire center electrode and platinum at the ground electrode provides maximum durability and performance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eThe platinum at the ground electrode adds extra protection against plug wear and gap erosion\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard pack only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":46932945731875,"sku":"PV746089","price":20.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/41-IZFR5J_1.jpg?v=1698781498"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-6499","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - 6499","description":"\u003cp\u003eLFR4AE SPARK PLUG (Sold Individually)\u003c\/p\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":46932964868387,"sku":"PV724453","price":9.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV724453.jpg?v=1698781657"},{"product_id":"mercury-plug-br9es-4-33-8m0157389","title":"Mercury - Plug br9es (Sold Individually) - 33-8M0157389","description":"\u003cp\u003ePlug br9es (Sold Individually)\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932964933923,"sku":"PV724429","price":5.31,"currency_code":"USD","in_stock":true}]},{"product_id":"mercury-plug-cr6hsa-4-33-8m0157329","title":"Mercury - Plug cr6hsa (Sold Individually) - 33-8M0157329","description":"\u003cp\u003ePlug cr6hsa (Sold Individually)\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932964999459,"sku":"PV723754","price":5.1,"currency_code":"USD","in_stock":true}]},{"product_id":"mercury-plug-br8hs-4-33-8m0157387","title":"Mercury - Plug br8hs (Sold Individually) - 33-8M0157387","description":"\u003cp\u003ePlug br8hs (Sold Individually)\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965032227,"sku":"PV725222","price":3.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV725222.jpg?v=1698781657"},{"product_id":"mercury-ngk-r7437-10-33-8m0128198","title":"Mercury - Ngk r7437-10 - 33-8M0128198","description":"\u003cp\u003eNgk r7437-10Priced Individually\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965097763,"sku":"PV721612","price":188.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV721612.jpg?v=1698781658"},{"product_id":"mercury-plug-bpr6es-4-8m0114747","title":"Mercury – NGK BPR6ES Spark Plug - Sold Individually | Ignition System | Copper Core | 8M0114747","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – NGK BPR6ES Spark Plug Pack | Ignition System | Copper Core | 8M0114747\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If you’ve spent enough time on the water, you know that a dependable spark isn’t just a technical detail—it’s the beginning of every good outing. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s a certain calm that comes from hearing your engine fire cleanly, especially on those early mornings when the water is glassy and the sky is just starting to lighten. The Quicksilver 8M0114747 NGK BPR6ES Spark Plug pack brings that feeling to life with every turn of the key. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to deliver steady ignition and the kind of reliability that keeps you exploring longer, these plugs give your outboard the crisp, confident startup you want before heading into open water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eNGK BPR6ES spark plugs arrive pre-gapped to manufacturer specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCopper core design promotes strong heat transfer and stable combustion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTrivalent metal plating offers excellent corrosion resistance and anti-seizing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurable ceramic insulator enhances heat control and structural strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4-pack standard plugs with a removable threaded terminal\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for Mercury and Mariner engines requiring NGK BPR6ES plugs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for a wide range of smaller to mid-size outboards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommon on aluminum fishing rigs, runabouts, dinghies, and versatile family boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAlways confirm plug type with your owner’s manual for proper fitment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e What you’ll notice first is how smoothly your engine settles into idle. These NGK BPR6ES plugs help maintain a tight, consistent spark \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ethat keeps the\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e power delivery steady and predictable.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When you throttle up, the response feels clean and deliberate, without hesitation or stumble. That’s the copper core at work—shedding heat quickly so each cylinder stays in its ideal temperature range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe ribbed suppressor seal helps prevent \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003emisfire\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e and spark “flash over,” \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esomething\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e you don’t want \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehappening\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e when electronics are running nearby.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYour radio stays clear, your gauges \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003estay\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e calm, and your engine stays focused on doing its job. The trivalent plating keeps corrosion at bay, making these plugs \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eeasier\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to remove even after long seasons in damp, salty environments. It’s a small detail, but one every boater appreciates when maintenance day rolls around.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eInstallation takes only a plug socket and a few minutes, especially since each plug is pre-gapped. Just check the gap, thread them in, and enjoy the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efeeling of a refreshed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e ignition system on your next trip out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When it comes to spark plugs, precision matters\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. Using\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the wrong plug can cause fouling, poor fuel economy, or even engine damage—none of which you want creeping into your weekends. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe Quicksilver 8M0114747 pack meets Mercury Marine’s exact ignition specifications, providing the right heat range, materials, and performance your engine \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewas designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Aftermarket substitutes may cost less upfront, but they rarely match the consistency and longevity of a genuine Mercury Marine part. OEM parts keep your maintenance straightforward, protect your investment, and help your outboard run the way it \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eshould\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e from the factory.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does the 8M0114747 Spark Plug pack fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt’s made\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for Mercury and Mariner engines that require NGK BPR6ES plugs. Always check your manual to confirm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What sets these plugs apart from aftermarket alternatives?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e They’re built to Mercury Marine’s exact ignition specifications, offering precise heat range, reliable performance, and corrosion-resistant durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if this plug is the right choice\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match the plug type and gap with \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewhat’s listed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e in your engine’s owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can these spark plugs be used in both freshwater and saltwater conditions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, the plating and materials \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eare designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to resist corrosion in both environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation simple for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely—just a spark plug socket, a few minutes, and a quick gap check.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965163299,"sku":"PV715847","price":6.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV715847.jpg?v=1698781659"},{"product_id":"mercury-a-plug-4-33-8m0135348","title":"Mercury - NGK LKAR7C9 Spark Plug - 8M0135348","description":"\u003cp\u003eEvery Mercury boat owner knows that reliable ignition is the heart of a smooth day on the water. The Mercury NGK LKAR7C9 Spark Plug (8M0135348) delivers just that—precise performance and OEM quality fused into a compact, marine-ready design tailored for 175–300 hp FourStroke and 450R 3.4 L V6\/4.6 L V8 outboards (s\/n 2B529482 and above). \u003cbr\u003eQuicksilver Products\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect fit:\u003c\/strong\u003e OEM NGK LKAR7C9 drop-in replacement, no adapters or modifications needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-gapped to 0.9 mm:\u003c\/strong\u003e Matches factory specs for efficient combustion and smooth startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper-core design: \u003c\/strong\u003ePromotes rapid heat transfer, reducing fouling risks on long runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrivalent plating:\u003c\/strong\u003e Marine-grade corrosion protection and anti-seize makes removal a breeze. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuicksilver Products\u003cbr\u003eNGK\u003c\/p\u003e\n\u003cp\u003eWeighing only a few ounces, it tucks neatly in your toolbox and engine cowling. You’ll notice crisper throttle response and more consistent fuel economy when every cylinder fires on cue. Outfitted with a high-density ceramic insulator and corrugated ribs to prevent flashover, this spark plug stands up to salt spray and vibration.\u003c\/p\u003e\n\u003cp\u003eWhen it’s time for routine maintenance, torque each plug to 10.8–14.5 lb·ft (aluminum) or 10.8–18 lb·ft (cast iron) for a leak-free seal. \u003cbr\u003eNGK\u003cbr\u003e Swap in fresh 8M0135348 plugs during your seasonal tune-up, and enjoy dependable firing no matter where your voyage takes you.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965228835,"sku":"PV719634","price":14.67,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV719634.jpg?v=1698781659"},{"product_id":"mercury-sp-b9hs-10-33-8m0114742","title":"Mercury - Sp b9hs-10 - 33-8M0114742","description":"\u003cp\u003e33-8M0114742 - SPARK PLUG B9HSPARK\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965294371,"sku":"PV715574","price":4.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV715574.jpg?v=1698781660"},{"product_id":"mercury-spark-plug-33-8m0058934","title":"Mercury - Spark plug - 33-8M0058934","description":"\u003cp\u003e33-8M0058934 - SPARK PLUG\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965327139,"sku":"PV716693","price":24.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV716693.jpg?v=1698781660"},{"product_id":"mercury-ngk-br7hs-10-10-33-8m0114740","title":"Mercury - Ngk br7hs-10(Sold Individually) - 33-8M0114740","description":"This product has been superseded by: 33-828942\u003cbr\u003e \u003cbr\u003e Ngk br7hs-10(Sold Individually)","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965359907,"sku":"PV714198","price":4.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV714198.jpg?v=1698781659"},{"product_id":"mercury-sp-b6hs-10-4-33-8m0114738","title":"Mercury - Sp b6hs-10 (Sold Individually) - 33-8M0114738","description":"\u003cp\u003e33-8M0114738 - SPARK PLUG B6HS\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965458211,"sku":"PV713867","price":4.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV713867.jpg?v=1698781659"},{"product_id":"mercury-sp-bp8hs-10-33-8m0114745","title":"Mercury - Sp bp8hs-10 - 33-8M0114745","description":"\u003cp\u003e33-8M0114745 - SPARK PLUG BP8HS\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965490979,"sku":"PV718875","price":6.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV718875.jpg?v=1698781660"},{"product_id":"mercury-spark-plug-25-33-8m0058935","title":"Mercury - Spark plug (Sold Individually)5 - 33-8M0058935","description":"\u003cp\u003e33-8M0058935 - SPARK PLUG\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965523747,"sku":"PV712087","price":23.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV712087.jpg?v=1698781660"},{"product_id":"mercury-sp-br8es-a4-33-8m0114749","title":"Mercury - Sp br8es-a4 - 33-8M0114749","description":"\u003cp\u003e33-8M0114749 - SPARK PLUG BR8ES\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965589283,"sku":"PV714469","price":5.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV714469.jpg?v=1698781661"},{"product_id":"mercury-sp-bp6hs-10-33-8m0114743","title":"Mercury – BP6HS Spark Plug - Sold Individually | Ignition System | Copper Core | 8M0114743","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – BP6HS Spark Plug Pack | Ignition System | Copper Core | 8M0114743\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Every boater knows that strong, dependable ignition starts with the simplest component under the cowl — the spark plug. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen one fails, you feel it immediately in the way the engine hesitates, roughens up, or \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ejust\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e refuses to come alive the way it should.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The Mercury 8M0114743 BP6HS Spark Plug pack brings back that easy confidence. It delivers the kind of clean, steady ignition that feels effortless, whether you’re firing up before sunrise or restarting after drifting a shoreline. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s something reassuring\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e about knowing your engine responds the moment you turn the key, and these plugs help make that happen every time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eResistor-type spark plugs \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003edesigned\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to reduce radio interference to onboard electronics\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCopper core electrode for excellent heat transfer and consistent temperature control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to Mercury Marine original equipment specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePack of four plugs for complete multi-cylinder replacement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt for longevity and reliable ignition under sustained marine use\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for select Mercury and Mariner outboards requiring BP6HS spark plugs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for small to mid-range outboard platforms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommon on jon boats, aluminum fishing boats, inflatables, tenders, and compact runabouts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAlways confirm your specific engine model and gap settings through your owner’s manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Few parts have more impact on the way an engine “feels” than a spark plug. These BP6HS plugs offer a crisp, smooth ignition that steadies idle, sharpens throttle response, and helps your outboard pull cleanly through the entire power band. The copper core construction is the quiet hero here — it draws heat away quickly, keeping temperatures controlled even during long runs or repeated stop-and-go maneuvering around docks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBecause these are resistor plugs, you’ll also appreciate the reduction in radio interference. Your sonar screen stays quiet, your VHF stays clear, and your electronics remain reliable \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003einstead of\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e buzzing with static. Installation is straightforward with a standard spark plug socket, and once in place, the seal feels tight and secure. You can trust the ignition to stay consistent, even when the weather swings from chilly mornings to hot, humid afternoons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e With ignition parts, shortcuts rarely pay off. A genuine Mercury Marine part ensures that the heat range, electrode material, and internal construction match exactly what your engine \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewas designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to use. Aftermarket plugs often miss the mark, leading to fouling, poor cold starts, or reduced performance.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Choosing OEM means you’re choosing dependability — the kind that saves you time on the water and keeps your engine running the way the engineers intended. Over the long haul, that reliability is far more cost-effective than rolling the dice on substitutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the 8M0114743 Spark Plug pack fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits select Mercury and Mariner outboards that specify BP6HS plugs. Check your owner’s manual to confirm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes these different from aftermarket spark plugs?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e They meet Mercury Marine’s exact ignition specifications, ensuring proper heat range, durability, and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eclean\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, consistent spark.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if this is the correct replacement plug?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your plug type and gap settings to the recommendations in your engine manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can these be used in both saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes — they’re built for marine conditions and hold up well in both environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely. With a standard spark plug socket, most owners can replace them in minutes.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965556515,"sku":"PV711275","price":4.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV711275.jpg?v=1698781660"},{"product_id":"mercury-sp-br7es-49-33-8m0114748","title":"Mercury - Sp br7es-49 - 33-8M0114748","description":"\u003cp\u003e33-8M0114748 - SPARK PLUG BR6ES\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965654819,"sku":"PV714058","price":4.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV714058.jpg?v=1698781660"},{"product_id":"mercury-sp-bp7hs-10-33-8m0114744","title":"Mercury – BP7HS Spark Plug - Sold Individually | Ignition System | Copper Core | 8M0114744","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – BP7HS Spark Plug Pack | Ignition System | Copper Core | 8M0114744\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a certain confidence that comes from knowing your engine is going to fire up cleanly every single time you turn the key. It’s a small moment, but it sets the tone for the whole day on the water. The Quicksilver 8M0114744 BP7HS Spark Plug pack brings that steady, dependable spark you count on when the wind is calm, the water is quiet, and you’re ready to push off. These plugs help your engine feel responsive and alive, offering that reassuring sense of control boaters appreciate whether they’re drifting for stripers or easing back into the marina at sunset.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eResistor-style spark plugs help minimize radio interference with onboard electronics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCopper core electrode delivers excellent heat transfer and consistent temperature control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury Marine’s precise original equipment specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePack of four plugs for complete multi-cylinder replacement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eStrong electrode wear characteristics for long-lasting ignition\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e performance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFor Mercury and Mariner engines that require BP7HS spark plugs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for small to mid-size outboards found on aluminum fishing boats, tenders, inflatables, and coastal runabouts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned to match factory ignition requirements for dependable performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAlways confirm fitment with your engine’s owner’s manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s something you can feel when an engine lights off the right way — a smooth, clean pulse at idle, a crisp jump when you advance the throttle, and a steady pull across the power band. These BP7HS plugs deliver exactly that. With their copper core construction, they shed heat quickly and evenly, helping your outboard stay within its ideal operating range. That means fewer misfires, less fouling, and more consistent combustion in real-world boating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBecause they’re resistor plugs, you’ll also see noticeable improvement in electronic clarity. Fish finders stay quiet instead of buzzing, radios pick up clean signals, and onboard electronics remain stable. Installation is quick and straightforward with a common spark plug socket, and the fit feels snug and secure once tightened. The result is a more confident, predictable engine — the kind of performance that lets you enjoy the water instead of worrying about what’s happening under the cowl.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When it comes to spark plugs, the wrong choice can cost you power, fuel efficiency, or even engine health. Genuine Mercury parts like the 8M0114744 BP7HS plugs are engineered specifically for your ignition system, ensuring proper heat range, gap integrity, and long-term durability. Aftermarket plugs may look similar, but they rarely match the exact standards required for mar\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eine engines. Using OEM keeps maintenance simple, protects your investment, and ensures the engine runs exactly the way Mercury engineers designed it to. It’s smart, practical, and cost-effective over the long haul.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does the 8M0114744 Spark Plug pack fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits Mercury and Mariner models that specify BP7HS plugs. Always verify with your e\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003engine manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes these different from aftermarket plugs?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e They match Mercury Marine’s heat range, materials, and performance specifications, ensuring proper ignition and long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the right plug for my motor?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check the plug type and gap listed in your engine’s owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can these plugs be used in both freshwater and saltwate\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003er environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes — they’re designed for marine conditions and perform well in both settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation simple for most boaters?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Very. With a basic spark plug socket, most owners can replace a full set in minutes.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965687587,"sku":"PV714017","price":4.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV714017.jpg?v=1698781660"},{"product_id":"yamaha-br8hs-ngk-screw-top-plug-4pk-b8h-s0000-00-00","title":"Yamaha - Br8hs  ngk screw top plug 4pk - B8H-S0000-00-00","description":"This product has been superseded by: BR8-HS000-00-00\u003cbr\u003e \u003cbr\u003e B8H-S0000-00-00 - BR8HS  NGK SCREW TOP PLUG 4PK","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":46932965720355,"sku":"PV710857","price":2.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV710857.jpg?v=1698781659"},{"product_id":"mercury-spark-plug-33-8m0058932","title":"Mercury - Spark plug - 33-8M0058932","description":"\u003cp\u003e33-8M0058932 - SPARK PLUG\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965785891,"sku":"PV710362","price":17.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV710362.jpg?v=1698781660"},{"product_id":"standard-spark-plugs-ngk-spark-plugs-5110","title":"STANDARD SPARK PLUGS (NGK SPARK PLUGS) - 5110","description":"Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eTriple gasket sealing process eliminates gas leakage past the shell\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e99% Highly pure alumina silicate insulator\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eSolid copper core\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCorrugated ribs to prevent flash over\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eCold rolled threads to prevent damage to cylinder head\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTrivalent plating - silver chromate and zinc for corrosion resistance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard packs only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":46932965851427,"sku":"PV706618","price":3.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV706618.jpg?v=1698781660"},{"product_id":"mercury-spark-plug-25-33-8m0058936","title":"Mercury - Spark plug (Sold Individually) - 33-8M0058936","description":"\u003cp\u003e33-8M0058936 - SPARK PLUG\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965884195,"sku":"PV711804","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV711804.jpg?v=1698781661"},{"product_id":"mercury-spark-plug-25-33-8m0058933","title":"Mercury - Spark plug (Sold Individually)5 - 33-8M0058933","description":"\u003cp\u003e33-8M0058933 - SPARK PLUG\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932965916963,"sku":"PV711216","price":22.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV711216.jpg?v=1698781661"},{"product_id":"iridium-ix-spark-plugs-ngk-spark-plugs-bpr8eix","title":"IRIDIUM IX SPARK PLUGS (NGK SPARK PLUGS) - BPR8EIX","description":"\u003cul\u003e\n\u003cli\u003eDesigned specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eFine-tipped iridium-center electrode ensures high durability and consistently stable spark\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIridium alloy with an extremely high melting point\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTapered ground electrode maximizes fuel burn\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eOutstanding acceleration, high fuel efficiency and durability\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eUltimate design, technology and performance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard pack only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":46932965982499,"sku":"PV698549","price":15.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV698549.jpg?v=1698781661"},{"product_id":"iridium-ix-spark-plugs-ngk-spark-plugs-tr5ix","title":"IRIDIUM IX SPARK PLUGS (NGK SPARK PLUGS) - TR5IX","description":"\u003cul\u003e\n\u003cli\u003eDesigned specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eFine-tipped iridium-center electrode ensures high durability and consistently stable spark\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eIridium alloy with an extremely high melting point\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eTapered ground electrode maximizes fuel burn\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eOutstanding acceleration, high fuel efficiency and durability\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eUltimate design, technology and performance\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003e\u003cb\u003eSold in standard pack only\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK SPARK PLUGS","offers":[{"title":"Default Title","offer_id":46932966048035,"sku":"PV698913","price":12.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV698913.jpg?v=1698781661"},{"product_id":"mercury-ngk-izfr6j-4-33-843220q","title":"Mercury – Quicksilver NGK IZFR6J Laser Iridium Spark Plug | Marine Ignition Component | Sold Individually | 843220Q","description":"\u003cp data-start=\"0\" data-end=\"110\"\u003e\u003cstrong data-start=\"0\" data-end=\"108\"\u003eMercury – Quicksilver NGK IZFR6J Laser Iridium Spark Plug | Marine Ignition Component | Sold Individually | 843220Q\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"112\" data-end=\"115\"\u003e\n\u003ch3 data-start=\"117\" data-end=\"135\"\u003e\u003cstrong data-start=\"121\" data-end=\"133\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"136\" data-end=\"587\"\u003eThe \u003cstrong data-start=\"140\" data-end=\"199\"\u003eQuicksilver 843220Q NGK IZFR6J Laser Iridium Spark Plug\u003c\/strong\u003e is built to give your Mercury outboard dependable starts, smooth power, and long service life. It’s the same high-quality plug trusted by \u003cstrong data-start=\"338\" data-end=\"356\"\u003eMercury Marine\u003c\/strong\u003e for factory performance, designed to handle the heat and vibration of real-world boating. Each plug comes pre-gapped and ready to install, so you can get back on the water quickly and know your engine is firing right every time.\u003c\/p\u003e\n\u003chr data-start=\"589\" data-end=\"592\"\u003e\n\u003ch3 data-start=\"594\" data-end=\"616\"\u003e\u003cstrong data-start=\"598\" data-end=\"614\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"619\" data-end=\"720\"\u003e\n\u003cstrong data-start=\"619\" data-end=\"631\"\u003ePurpose:\u003c\/strong\u003e Provides consistent spark for reliable ignition, smooth idle, and efficient fuel burn.\u003c\/li\u003e\n\u003cli data-start=\"723\" data-end=\"834\"\u003e\n\u003cstrong data-start=\"723\" data-end=\"736\"\u003eMaterial:\u003c\/strong\u003e Built with a laser-welded iridium tip and copper core for better conductivity and heat control.\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"943\"\u003e\n\u003cstrong data-start=\"837\" data-end=\"853\"\u003ePerformance:\u003c\/strong\u003e Delivers cleaner combustion, longer life, and easier starts compared to standard plugs.\u003c\/li\u003e\n\u003cli data-start=\"946\" data-end=\"1057\"\u003e\n\u003cstrong data-start=\"946\" data-end=\"957\"\u003eDesign:\u003c\/strong\u003e Features a ribbed ceramic insulator that helps prevent flashover and reduces misfires under load.\u003c\/li\u003e\n\u003cli data-start=\"1060\" data-end=\"1163\"\u003e\n\u003cstrong data-start=\"1060\" data-end=\"1084\"\u003eEase of Use\/Install:\u003c\/strong\u003e Pre-gapped to OEM specs and installs easily with a common spark plug socket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1165\" data-end=\"1168\"\u003e\n\u003ch3 data-start=\"1170\" data-end=\"1193\"\u003e\u003cstrong data-start=\"1174\" data-end=\"1191\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1196\" data-end=\"1299\"\u003e\n\u003cstrong data-start=\"1196\" data-end=\"1208\"\u003eEngines:\u003c\/strong\u003e Mercury Marine outboards and compatible marine engines (verify with your owner’s manual)\u003c\/li\u003e\n\u003cli data-start=\"1302\" data-end=\"1339\"\u003e\n\u003cstrong data-start=\"1302\" data-end=\"1315\"\u003eReplaces:\u003c\/strong\u003e NGK IZFR6J Spark Plug\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1413\"\u003e\n\u003cstrong data-start=\"1342\" data-end=\"1353\"\u003eUse On:\u003c\/strong\u003e Outboards | Sterndrives | Jet Boats | Powersports Engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1415\" data-end=\"1418\"\u003e\n\u003ch3 data-start=\"1420\" data-end=\"1463\"\u003e\u003cstrong data-start=\"1424\" data-end=\"1461\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1464\" data-end=\"1898\"\u003eBoaters who switch to the \u003cstrong data-start=\"1490\" data-end=\"1513\"\u003eIZFR6J Iridium plug\u003c\/strong\u003e often notice faster starts, smoother throttle response, and better fuel efficiency. The iridium tip holds its edge far longer than standard electrodes, meaning more reliable spark over time. NGK’s ceramic insulator helps the plug stay cooler and cleaner, even after long days on the water. It’s the kind of part you install once and don’t have to think about again for a long while.\u003c\/p\u003e\n\u003chr data-start=\"1900\" data-end=\"1903\"\u003e\n\u003ch3 data-start=\"1905\" data-end=\"1929\"\u003e\u003cstrong data-start=\"1909\" data-end=\"1927\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1930\" data-end=\"2363\"\u003eChoosing \u003cstrong data-start=\"1939\" data-end=\"1972\"\u003eQuicksilver and NGK OEM parts\u003c\/strong\u003e means you’re using components designed exactly for your engine—not a close copy. OEM plugs match Mercury’s exact heat range, thread depth, and gap settings to keep performance consistent. Aftermarket versions can fall short on fit or wear faster, which affects power and efficiency. With OEM, you’re getting the same dependable quality your motor was built with, and that’s worth keeping.\u003c\/p\u003e\n\u003chr data-start=\"2365\" data-end=\"2368\"\u003e\n\u003ch3 data-start=\"2370\" data-end=\"2383\"\u003e\u003cstrong data-start=\"2374\" data-end=\"2381\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2384\" data-end=\"2553\"\u003e\u003cstrong data-start=\"2384\" data-end=\"2435\"\u003eQ1: Are these plugs pre-gapped and ready to go?\u003c\/strong\u003e\u003cbr data-start=\"2435\" data-end=\"2438\"\u003eYes, they come pre-gapped at the correct setting for Mercury outboards. Just double-check your manual to be sure.\u003c\/p\u003e\n\u003cp data-start=\"2555\" data-end=\"2709\"\u003e\u003cstrong data-start=\"2555\" data-end=\"2601\"\u003eQ2: Can I mix these with other plug types?\u003c\/strong\u003e\u003cbr data-start=\"2601\" data-end=\"2604\"\u003eIt’s best not to. Replacing all your plugs at once with the same type ensures smooth, even performance.\u003c\/p\u003e\n\u003cp data-start=\"2711\" data-end=\"2872\"\u003e\u003cstrong data-start=\"2711\" data-end=\"2771\"\u003eQ3: How long will these last compared to standard plugs?\u003c\/strong\u003e\u003cbr data-start=\"2771\" data-end=\"2774\"\u003eIridium plugs last much longer—often two to three times the lifespan of traditional copper ones.\u003c\/p\u003e\n\u003cp data-start=\"2874\" data-end=\"3027\"\u003e\u003cstrong data-start=\"2874\" data-end=\"2920\"\u003eQ4: Do they resist corrosion in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2920\" data-end=\"2923\"\u003eYes, the trivalent metal plating keeps them from seizing and helps protect against rust in marine use.\u003c\/p\u003e\n\u003cp data-start=\"3029\" data-end=\"3139\"\u003e\u003cstrong data-start=\"3029\" data-end=\"3059\"\u003eQ5: What’s in the package?\u003c\/strong\u003e\u003cbr data-start=\"3059\" data-end=\"3062\"\u003eEach box includes one NGK Laser Iridium spark plug, ready for installation.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966080803,"sku":"PV687393","price":25.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/IMG_7871.jpg?v=1747687286"},{"product_id":"mercury-sp-b5hs-33-33-8m0114737","title":"Mercury - Sp b5hs-33 - 33-8M0114737","description":"\u003cp\u003e33-8M0114737 - SPARK PLUG B5HS\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966179107,"sku":"PV707177","price":6.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV707177.jpg?v=1698781661"},{"product_id":"mercury-ngk-bu8h-10-13686q","title":"Mercury – Quicksilver Spark Plug | Ignition System Component | NGK BU8H Semi-Surface Gap | 13686Q","description":"\u003cp data-start=\"0\" data-end=\"103\"\u003e\u003cstrong data-start=\"0\" data-end=\"101\"\u003eMercury – Quicksilver Spark Plug | Ignition System Component | NGK BU8H Semi-Surface Gap | 13686Q\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"105\" data-end=\"108\"\u003e\n\u003ch3 data-start=\"110\" data-end=\"128\"\u003e\u003cstrong data-start=\"114\" data-end=\"126\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"129\" data-end=\"688\"\u003eA smooth, clean spark is the heartbeat of your engine, and the \u003cstrong data-start=\"192\" data-end=\"251\"\u003eMercury Marine 13686Q Quicksilver Spark Plug (NGK BU8H)\u003c\/strong\u003e keeps that heartbeat steady. Built with a \u003cstrong data-start=\"294\" data-end=\"327\"\u003esemi-surface discharge design\u003c\/strong\u003e, it delivers efficient ignition and helps burn away carbon buildup before it can foul your plugs. Whether you’re easing out of the marina or opening up on the bay, this plug keeps your outboard firing crisp and clean. It’s dependable, tough, and designed specifically for marine use — the kind of plug you install and then forget about because it just works.\u003c\/p\u003e\n\u003chr data-start=\"690\" data-end=\"693\"\u003e\n\u003ch3 data-start=\"695\" data-end=\"717\"\u003e\u003cstrong data-start=\"699\" data-end=\"715\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"720\" data-end=\"815\"\u003e\n\u003cstrong data-start=\"720\" data-end=\"732\"\u003ePurpose:\u003c\/strong\u003e Provides consistent, clean ignition and prevents fouling for smooth performance.\u003c\/li\u003e\n\u003cli data-start=\"818\" data-end=\"934\"\u003e\n\u003cstrong data-start=\"818\" data-end=\"829\"\u003eDesign:\u003c\/strong\u003e Features \u003cstrong data-start=\"839\" data-end=\"877\"\u003eNGK’s semi-surface discharge style\u003c\/strong\u003e with small side electrodes — no gap adjustment needed.\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"1060\"\u003e\n\u003cstrong data-start=\"937\" data-end=\"950\"\u003eMaterial:\u003c\/strong\u003e Built with a \u003cstrong data-start=\"964\" data-end=\"1007\"\u003epure alumina silicate ceramic insulator\u003c\/strong\u003e for strength, heat transfer, and break resistance.\u003c\/li\u003e\n\u003cli data-start=\"1063\" data-end=\"1169\"\u003e\n\u003cstrong data-start=\"1063\" data-end=\"1072\"\u003eCore:\u003c\/strong\u003e \u003cstrong data-start=\"1073\" data-end=\"1100\"\u003eCopper center electrode\u003c\/strong\u003e draws away heat for efficient combustion and reduced pre-ignition.\u003c\/li\u003e\n\u003cli data-start=\"1172\" data-end=\"1267\"\u003e\n\u003cstrong data-start=\"1172\" data-end=\"1187\"\u003eProtection:\u003c\/strong\u003e \u003cstrong data-start=\"1188\" data-end=\"1215\"\u003eTrivalent metal plating\u003c\/strong\u003e prevents corrosion and makes plug removal easier.\u003c\/li\u003e\n\u003cli data-start=\"1270\" data-end=\"1385\"\u003e\n\u003cstrong data-start=\"1270\" data-end=\"1286\"\u003ePerformance:\u003c\/strong\u003e Ribbed suppressor seal prevents “flash over” and misfire; triple seal design eliminates leakage.\u003c\/li\u003e\n\u003cli data-start=\"1388\" data-end=\"1474\"\u003e\n\u003cstrong data-start=\"1388\" data-end=\"1404\"\u003eEase of Use:\u003c\/strong\u003e Pre-gapped and ready to install using a standard spark plug socket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1476\" data-end=\"1479\"\u003e\n\u003ch3 data-start=\"1481\" data-end=\"1518\"\u003e\u003cstrong data-start=\"1485\" data-end=\"1516\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1521\" data-end=\"1637\"\u003eDesigned for \u003cstrong data-start=\"1534\" data-end=\"1584\"\u003eselect Mercury and Mariner TwoStroke outboards\u003c\/strong\u003e that specify NGK BU8H plugs in the owner’s manual.\u003c\/li\u003e\n\u003cli data-start=\"1640\" data-end=\"1711\"\u003eCommonly used in \u003cstrong data-start=\"1657\" data-end=\"1679\"\u003emidrange outboards\u003c\/strong\u003e between 30 and 90 horsepower.\u003c\/li\u003e\n\u003cli data-start=\"1714\" data-end=\"1834\"\u003eIdeal for \u003cstrong data-start=\"1724\" data-end=\"1783\"\u003efishing boats, pontoons, inflatables, and utility craft\u003c\/strong\u003e powered by dependable Mercury TwoStroke engines.\u003c\/li\u003e\n\u003cli data-start=\"1837\" data-end=\"1941\"\u003eAlways check your \u003cstrong data-start=\"1855\" data-end=\"1893\"\u003eengine’s owner’s or service manual\u003c\/strong\u003e to confirm compatibility before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1943\" data-end=\"1946\"\u003e\n\u003ch3 data-start=\"1948\" data-end=\"1990\"\u003e\u003cstrong data-start=\"1952\" data-end=\"1988\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1991\" data-end=\"2337\"\u003eThe \u003cstrong data-start=\"1995\" data-end=\"2016\"\u003e13686Q spark plug\u003c\/strong\u003e is made for real-world boating. Its semi-surface design improves ignition even when carbon starts to build up — keeping your engine firing when cheaper plugs would foul. The copper core dissipates heat fast, preventing pre-ignition or knocking, while the ceramic insulator keeps the plug stable under high compression.\u003c\/p\u003e\n\u003cp data-start=\"2339\" data-end=\"2672\"\u003eYou’ll notice quicker starts, smoother idle, and more consistent throttle response across all RPMs. It also resists seizing in the cylinder head, so when it’s time to replace them, they back out easily without a fight. It’s a small piece of equipment that plays a big role in your engine’s reliability, efficiency, and performance.\u003c\/p\u003e\n\u003chr data-start=\"2674\" data-end=\"2677\"\u003e\n\u003ch3 data-start=\"2679\" data-end=\"2700\"\u003e\u003cstrong data-start=\"2683\" data-end=\"2698\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2701\" data-end=\"2992\"\u003eNot every spark plug is up to the job of marine duty. Automotive plugs can corrode, stick, or overheat when exposed to salt and moisture. The \u003cstrong data-start=\"2843\" data-end=\"2865\"\u003eQuicksilver 13686Q\u003c\/strong\u003e — paired with \u003cstrong data-start=\"2880\" data-end=\"2901\"\u003eNGK’s BU8H design\u003c\/strong\u003e — is tested and approved by Mercury Marine for the exact conditions your outboard faces.\u003c\/p\u003e\n\u003cp data-start=\"2994\" data-end=\"3293\"\u003eIt’s engineered to last longer, resist corrosion, and deliver steady spark energy in wet, hot, and high-vibration environments. With OEM-grade quality, you’re not just getting a plug — you’re getting a proven ignition component that keeps your Mercury engine performing the way it was designed to.\u003c\/p\u003e\n\u003chr data-start=\"3295\" data-end=\"3298\"\u003e\n\u003ch3 data-start=\"3300\" data-end=\"3313\"\u003e\u003cstrong data-start=\"3304\" data-end=\"3311\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3315\" data-end=\"3494\"\u003e\u003cstrong data-start=\"3315\" data-end=\"3363\"\u003eQ1: Which engines use the 13686Q spark plug?\u003c\/strong\u003e\u003cbr data-start=\"3363\" data-end=\"3366\"\u003eIt fits \u003cstrong data-start=\"3374\" data-end=\"3424\"\u003eselect Mercury and Mariner TwoStroke outboards\u003c\/strong\u003e that specify NGK BU8H plugs — check your owner’s manual to confirm.\u003c\/p\u003e\n\u003cp data-start=\"3496\" data-end=\"3696\"\u003e\u003cstrong data-start=\"3496\" data-end=\"3566\"\u003eQ2: What makes this plug different from standard automotive plugs?\u003c\/strong\u003e\u003cbr data-start=\"3566\" data-end=\"3569\"\u003eIt’s built for marine use — corrosion resistant, self-cleaning, and designed to perform under heavy load and long idle times.\u003c\/p\u003e\n\u003cp data-start=\"3698\" data-end=\"3831\"\u003e\u003cstrong data-start=\"3698\" data-end=\"3750\"\u003eQ3: Does it require gapping before installation?\u003c\/strong\u003e\u003cbr data-start=\"3750\" data-end=\"3753\"\u003eNo. The \u003cstrong data-start=\"3761\" data-end=\"3794\"\u003esemi-surface discharge design\u003c\/strong\u003e comes pre-gapped to factory specs.\u003c\/p\u003e\n\u003cp data-start=\"3833\" data-end=\"3991\"\u003e\u003cstrong data-start=\"3833\" data-end=\"3882\"\u003eQ4: How often should spark plugs be replaced?\u003c\/strong\u003e\u003cbr data-start=\"3882\" data-end=\"3885\"\u003eIt depends on your usage, but most boaters replace them once per season or after 100 hours of operation.\u003c\/p\u003e\n\u003cp data-start=\"3993\" data-end=\"4124\"\u003e\u003cstrong data-start=\"3993\" data-end=\"4064\"\u003eQ5: Can this be used in both saltwater and freshwater environments?\u003c\/strong\u003e\u003cbr data-start=\"4064\" data-end=\"4067\"\u003eYes — its corrosion-resistant plating is made for both.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966277411,"sku":"PV684700","price":6.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/IMG_7741.jpg?v=1747169058"},{"product_id":"mercury-ngk-buhw-2-10-97182q-superseded-to-spark-plugs-champion-spark-plugs-l78v-sold-individually","title":"Mercury - NGK BUHW-2  (Sold Individually) - 97182Q superseded to SPARK PLUGS (CHAMPION SPARK PLUGS) - L78V Sold individually.","description":"\u003cp\u003e33-97182Q - NGK BUHW - 2 superseded to SPARK PLUGS (CHAMPION SPARK PLUGS) - L78V Sold individually.\u003c\/p\u003e \u003cp\u003ePlease click \u003ca href=\"https:\/\/partsvu.com\/products\/spark-plugs-champion-spark-plugs-l78v\"\u003ehere\u003c\/a\u003e for a direct link to the replacement sku.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966310179,"sku":"PV684699","price":9.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV684699.jpg?v=1698781663"},{"product_id":"mercury-ngk-izfr5g-4-33-889597q","title":"Mercury – NGK IZFR5G Laser Iridium Spark Plug | Ignition Component | Steel \u0026  Ceramic | 889597Q","description":"\u003ch2\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – NGK IZFR5G Laser Iridium Spark Plug | Ignition Component | Steel \u0026amp; Ceramic | 889597Q\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a kind of quiet trust that builds between you and your engine once you’ve found a spark plug that never hesitates. The NGK IZFR5G Laser Iridium plug feels like one of those dependable little parts you install and forget — because it just works. You turn the key, the motor fires, and the day gets going without a second thought. Whether you’re easing out of a no-wake zone or pushing toward open water, it’s comforting knowing the ignition is as clean and steady as the sunrise over the tide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLaser Iridium center electrode for strong, consistent ignition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCopper core construction for steady firing and long service life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePure alumina silicate ceramic insulator for superior strength and heat transfer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTrivalent metal plating for corrosion resistance and non-seizing installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRibbed suppressor seal to prevent flashover and reduce misfires\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePre-gapped to Mercury specifications (gap should still be verified before installation)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits select Mercury and Mercury Marine outboards requiring NGK IZFR5G spark plugs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for a wide range of FourStroke engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks well on bass boats, pontoons, center consoles, bay boats, and nearshore fishing boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with engines designed for Iridium ignition components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e A good spark plug changes how your whole engine feels — not just how it starts. This Laser Iridium plug delivers a crisp, clean ignition that helps the motor settle into a smooth idle and climb through the throttle range with confidence. You’ll notice fewer stumbles coming out of turns, steadier mid-range cruising, and more predictable acceleration when you need to push across a windy stretch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe ceramic insulator sheds heat quickly, protecting the plug during long hours of idling, trolling, or slow runs along the shoreline. The Iridium tip resists wear even after heavy use, keeping the spark consistent over time. And because it fights off fouling, you won’t spend your Saturday pulling apart the cowling when you’d rather be casting a line or heading toward your favorite anchorage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury Marine parts are built around exact ignition timing and combustion requirements. Aftermarket plugs might fire, but they rarely provide the long-term consistency needed to protect engine performance. Choosing the OEM-specified plug means cleaner ignition, better fuel economy, and fewer surprises when you least want them. It’s simply the smarter play — the kind of advice you’d give a friend at the dock before a long weekend run.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does this plug fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Any Mercury engine that specifies NGK IZFR5G in the owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: Why choose this OEM spark plug instead of aftermarket?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It meets Mercury’s ignition and heat-range requirements, offering better stability and lifespan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm it’s correct for my setup?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your manual — if it lists part number 889597Q or NGK IZFR5G, this is the one.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can it be used in saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely — it’s built to resist corrosion and withstand marine heat cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, most boat owners can install it with a standard spark plug socket.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966375715,"sku":"PV683587","price":24.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV683587.jpg?v=1698781661"},{"product_id":"mercury-ngk-bp8hn-10-10-33-816737q","title":"Mercury – Quicksilver 816737Q NGK BP8HN-10 V-Power Spark Plug | Sold Individually | OEM Marine Plug | 816737Q","description":"\u003cp data-start=\"0\" data-end=\"104\"\u003e\u003cstrong data-start=\"0\" data-end=\"102\"\u003eMercury – Quicksilver 816737Q NGK BP8HN-10 V-Power Spark Plug | Sold Individually | OEM Marine Plug | 816737Q\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"106\" data-end=\"109\"\u003e\n\u003ch3 data-start=\"111\" data-end=\"129\"\u003e\u003cstrong data-start=\"115\" data-end=\"127\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"130\" data-end=\"541\"\u003eA smooth-running engine starts with a good spark. The \u003cstrong data-start=\"184\" data-end=\"239\"\u003eQuicksilver 816737Q NGK BP8HN-10 V-Power Spark Plug\u003c\/strong\u003e gives your outboard or inboard the reliable ignition it needs for clean starts and consistent power. This genuine NGK plug features a \u003cstrong data-start=\"374\" data-end=\"395\"\u003e“V”-cut electrode\u003c\/strong\u003e that helps the spark jump more easily and burn fuel more efficiently — a small upgrade that makes a big difference in how your engine performs.\u003c\/p\u003e\n\u003cp data-start=\"543\" data-end=\"786\"\u003eEach plug comes pre-gapped to Mercury’s factory specs, so it’s ready to install right out of the box. Whether you’re chasing top speed or just want easy starts at the dock, this OEM plug helps your motor fire crisp and run strong every time.\u003c\/p\u003e\n\u003chr data-start=\"788\" data-end=\"791\"\u003e\n\u003ch3 data-start=\"793\" data-end=\"815\"\u003e\u003cstrong data-start=\"797\" data-end=\"813\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"818\" data-end=\"912\"\u003e\n\u003cstrong data-start=\"818\" data-end=\"830\"\u003ePurpose:\u003c\/strong\u003e Provides consistent, high-energy spark for better ignition and fuel efficiency.\u003c\/li\u003e\n\u003cli data-start=\"915\" data-end=\"1011\"\u003e\n\u003cstrong data-start=\"915\" data-end=\"927\"\u003eFitment:\u003c\/strong\u003e For Mercury and Mariner marine engines that specify \u003cstrong data-start=\"980\" data-end=\"996\"\u003eNGK BP8HN-10\u003c\/strong\u003e spark plugs.\u003c\/li\u003e\n\u003cli data-start=\"1014\" data-end=\"1113\"\u003e\n\u003cstrong data-start=\"1014\" data-end=\"1025\"\u003eDesign:\u003c\/strong\u003e Unique \u003cstrong data-start=\"1033\" data-end=\"1061\"\u003eV-Power center electrode\u003c\/strong\u003e directs spark to the edge for cleaner combustion.\u003c\/li\u003e\n\u003cli data-start=\"1116\" data-end=\"1216\"\u003e\n\u003cstrong data-start=\"1116\" data-end=\"1131\"\u003eDurability:\u003c\/strong\u003e \u003cstrong data-start=\"1132\" data-end=\"1159\"\u003eTrivalent metal plating\u003c\/strong\u003e prevents corrosion and seizing in marine environments.\u003c\/li\u003e\n\u003cli data-start=\"1219\" data-end=\"1319\"\u003e\n\u003cstrong data-start=\"1219\" data-end=\"1236\"\u003eConstruction:\u003c\/strong\u003e \u003cstrong data-start=\"1237\" data-end=\"1280\"\u003ePure alumina-silicate ceramic insulator\u003c\/strong\u003e improves strength and heat transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1321\" data-end=\"1324\"\u003e\n\u003ch3 data-start=\"1326\" data-end=\"1363\"\u003e\u003cstrong data-start=\"1330\" data-end=\"1361\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1366\" data-end=\"1472\"\u003eFits multiple \u003cstrong data-start=\"1380\" data-end=\"1437\"\u003eMercury and Mariner outboards and MerCruiser inboards\u003c\/strong\u003e that call for NGK BP8HN-10 plugs\u003c\/li\u003e\n\u003cli data-start=\"1475\" data-end=\"1545\"\u003eCommon on high-performance two-stroke and four-stroke marine engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1547\" data-end=\"1550\"\u003e\n\u003ch3 data-start=\"1552\" data-end=\"1594\"\u003e\u003cstrong data-start=\"1556\" data-end=\"1592\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1595\" data-end=\"1905\"\u003eThe \u003cstrong data-start=\"1599\" data-end=\"1610\"\u003e816737Q\u003c\/strong\u003e spark plug delivers reliable firing under the demanding conditions of marine use. The “V” groove design improves ignitability, giving smoother idle, quicker starts, and cleaner throttle response. The copper core pulls heat away from the electrode for better temperature control and plug life.\u003c\/p\u003e\n\u003cp data-start=\"1907\" data-end=\"2154\"\u003eWith corrosion-resistant plating, these plugs stay easy to remove even after seasons in saltwater. Replace all your plugs at once and you’ll notice stronger acceleration, steadier RPMs, and more confident restarts after long runs or long layups.\u003c\/p\u003e\n\u003chr data-start=\"2156\" data-end=\"2159\"\u003e\n\u003ch3 data-start=\"2161\" data-end=\"2182\"\u003e\u003cstrong data-start=\"2165\" data-end=\"2180\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2183\" data-end=\"2467\"\u003eMercury-approved NGK plugs are built for marine duty — constant load, moisture, and heat. Automotive equivalents often can’t handle the same sustained stress or wet conditions. Using the correct OEM-specified plug ensures proper heat range, ignition timing, and overall reliability.\u003c\/p\u003e\n\u003cp data-start=\"2469\" data-end=\"2647\"\u003eA \u003cstrong data-start=\"2471\" data-end=\"2503\"\u003egenuine Quicksilver NGK plug\u003c\/strong\u003e means factory-level performance, easy installation, and long service life — the same quality trusted by Mercury technicians around the world.\u003c\/p\u003e\n\u003chr data-start=\"2649\" data-end=\"2652\"\u003e\n\u003ch3 data-start=\"2654\" data-end=\"2667\"\u003e\u003cstrong data-start=\"2658\" data-end=\"2665\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2668\" data-end=\"2819\"\u003e\u003cstrong data-start=\"2668\" data-end=\"2723\"\u003eQ1: Which engines use the Quicksilver 816737Q plug?\u003c\/strong\u003e\u003cbr data-start=\"2723\" data-end=\"2726\"\u003eA: Any \u003cstrong data-start=\"2733\" data-end=\"2762\"\u003eMercury or Mariner engine\u003c\/strong\u003e that specifies \u003cstrong data-start=\"2778\" data-end=\"2794\"\u003eNGK BP8HN-10\u003c\/strong\u003e in the owner’s manual.\u003c\/p\u003e\n\u003cp data-start=\"2821\" data-end=\"2964\"\u003e\u003cstrong data-start=\"2821\" data-end=\"2854\"\u003eQ2: Are the plugs pre-gapped?\u003c\/strong\u003e\u003cbr data-start=\"2854\" data-end=\"2857\"\u003eA: Yes, they’re pre-gapped to Mercury’s specs, but it’s always good practice to verify before installing.\u003c\/p\u003e\n\u003cp data-start=\"2966\" data-end=\"3122\"\u003e\u003cstrong data-start=\"2966\" data-end=\"3010\"\u003eQ3: What’s special about the “V” design?\u003c\/strong\u003e\u003cbr data-start=\"3010\" data-end=\"3013\"\u003eA: The \u003cstrong data-start=\"3020\" data-end=\"3039\"\u003eV-cut electrode\u003c\/strong\u003e directs the spark toward the edge, improving ignition and combustion efficiency.\u003c\/p\u003e\n\u003cp data-start=\"3124\" data-end=\"3270\"\u003e\u003cstrong data-start=\"3124\" data-end=\"3160\"\u003eQ4: Can it handle saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3160\" data-end=\"3163\"\u003eA: Absolutely. The trivalent plating prevents corrosion and thread seizure, even in saltwater conditions.\u003c\/p\u003e\n\u003cp data-start=\"3272\" data-end=\"3404\"\u003e\u003cstrong data-start=\"3272\" data-end=\"3321\"\u003eQ5: How often should spark plugs be replaced?\u003c\/strong\u003e\u003cbr data-start=\"3321\" data-end=\"3324\"\u003eA: Inspect yearly and replace every 100 hours, or sooner if performance drops.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966441251,"sku":"PV683689","price":4.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/IMG_7740.jpg?v=1747168971"},{"product_id":"mercury-ngkbpz8hs-10-10-33-14814q","title":"Mercury - NGKBPZ8HS-10(Sold Individually) - 33-14814Q","description":"\u003cp\u003eNGKBPZ8HS-10(Sold Individually)\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966474019,"sku":"PV685532","price":9.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV685532.jpg?v=1698781661"},{"product_id":"mercury-sp-ql78yc-4-33-816837q","title":"Mercury - Sp #ql78yc (Sold Individually) - 33-816837Q","description":"\u003cp\u003e33-816837Q - NGKBPZ8HN - 10\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966506787,"sku":"PV685796","price":9.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV685796.jpg?v=1698781662"},{"product_id":"mercury-sp-l76v-4-33-97179","title":"Mercury - Sp #l76v (Sold Individually) - 33-97179","description":"This product has been superseded by: 33-896329827\u003cbr\u003e \u003cbr\u003e Sp #l76v (Sold Individually)","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966572323,"sku":"PV657670","price":10.62,"currency_code":"USD","in_stock":true}]},{"product_id":"mercury-ngk-tr5ix-4-33-861644","title":"Mercury - Ngk tr5ix (Sold Individually) - 33-861644","description":"This product has been superseded by: 33-8M0046007\u003cbr\u003e \u003cbr\u003e Ngk tr5ix (Sold Individually)","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932966637859,"sku":"PV641006","price":16.14,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/partsvu.com\/en-mx\/collections\/mercury-outboard-engine-ignition-components.oembed?page=38","provider":"PartsVu","version":"1.0","type":"link"}