{"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","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-ngk-lkar7c-9-33-8m0204737","provider":"PartsVu","version":"1.0","type":"link"}