{"product_id":"mercury-switch-box-assembly-2-cycle-outboards-339-7452a19","title":"Mercury – Quicksilver Switch Box Assembly | Ignition System Component | 6–25HP 2-Stroke Outboards | 7452A19","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver Switch Box Assembly | Ignition System Component | 6–25HP 2-Stroke Outboards | 7452A19\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"734\"\u003eWhen your ignition system starts acting up, the \u003cstrong data-start=\"187\" data-end=\"254\"\u003eMercury Marine 7452A19 Quicksilver Outboard Switch Box Assembly\u003c\/strong\u003e brings it back to life. Designed for \u003cstrong data-start=\"292\" data-end=\"341\"\u003eMercury and Mariner 6–25HP 2-stroke outboards\u003c\/strong\u003e using \u003cstrong data-start=\"348\" data-end=\"384\"\u003eADI (Alternator Driven Ignition)\u003c\/strong\u003e, this OEM assembly restores strong, consistent spark across all cylinders. Each switch box includes the proper lead wires and connectors for both sides, ensuring clean installation and reliable electrical contact. Built to handle marine heat, vibration, and moisture, it delivers the durability and spark performance Mercury engines are known for.\u003c\/p\u003e\n\u003chr data-start=\"736\" data-end=\"739\"\u003e\n\u003ch3 data-start=\"741\" data-end=\"763\"\u003e\u003cstrong data-start=\"745\" data-end=\"761\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"766\" data-end=\"847\"\u003e\n\u003cstrong data-start=\"766\" data-end=\"778\"\u003ePurpose:\u003c\/strong\u003e Controls timing and spark delivery within the ADI ignition system.\u003c\/li\u003e\n\u003cli data-start=\"850\" data-end=\"939\"\u003e\n\u003cstrong data-start=\"850\" data-end=\"861\"\u003eDesign:\u003c\/strong\u003e Complete \u003cstrong data-start=\"871\" data-end=\"894\"\u003eswitch box assembly\u003c\/strong\u003e with factory-matched leads and connectors.\u003c\/li\u003e\n\u003cli data-start=\"942\" data-end=\"1039\"\u003e\n\u003cstrong data-start=\"942\" data-end=\"955\"\u003eMaterial:\u003c\/strong\u003e Built from \u003cstrong data-start=\"967\" data-end=\"994\"\u003emarine-rated components\u003c\/strong\u003e designed for heat and moisture resistance.\u003c\/li\u003e\n\u003cli data-start=\"1042\" data-end=\"1128\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1058\"\u003ePerformance:\u003c\/strong\u003e Restores smooth idle, crisp acceleration, and steady top-end power.\u003c\/li\u003e\n\u003cli data-start=\"1131\" data-end=\"1219\"\u003e\n\u003cstrong data-start=\"1131\" data-end=\"1146\"\u003eDurability:\u003c\/strong\u003e Handles vibration, humidity, and long hours of operation on the water.\u003c\/li\u003e\n\u003cli data-start=\"1222\" data-end=\"1320\"\u003e\n\u003cstrong data-start=\"1222\" data-end=\"1242\"\u003eEase of Service:\u003c\/strong\u003e Installs with standard tools; some diagnostic testing tools may be helpful.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1322\" data-end=\"1325\"\u003e\n\u003ch3 data-start=\"1327\" data-end=\"1364\"\u003e\u003cstrong data-start=\"1331\" data-end=\"1362\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1367\" data-end=\"1444\"\u003eMercury 6–25HP 2-stroke outboards with \u003cstrong data-start=\"1406\" data-end=\"1442\"\u003eADI (Alternator Driven Ignition)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1447\" data-end=\"1512\"\u003eMariner 6–25HP 2-stroke outboards with \u003cstrong data-start=\"1486\" data-end=\"1510\"\u003eADI ignition systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1514\" data-end=\"1517\"\u003e\n\u003ch3 data-start=\"1519\" data-end=\"1562\"\u003e\u003cstrong data-start=\"1523\" data-end=\"1560\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1563\" data-end=\"1831\"\u003eThe \u003cstrong data-start=\"1567\" data-end=\"1589\"\u003e7452A19 switch box\u003c\/strong\u003e restores precise ignition control to smaller Mercury and Mariner engines. Faulty switch boxes can cause weak spark, misfiring, or hard starts. Replacing it brings back quick starts, smooth idle, and dependable running across the RPM range.\u003c\/p\u003e\n\u003cp data-start=\"1833\" data-end=\"2087\"\u003eEach OEM switch box is tested for proper voltage output and resistance to heat and moisture. Once installed, you’ll notice stronger spark delivery and cleaner throttle response — key for getting the most from your 2-stroke every time you hit the water.\u003c\/p\u003e\n\u003chr data-start=\"2089\" data-end=\"2092\"\u003e\n\u003ch3 data-start=\"2094\" data-end=\"2126\"\u003e\u003cstrong data-start=\"2098\" data-end=\"2124\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2127\" data-end=\"2391\"\u003eThe \u003cstrong data-start=\"2131\" data-end=\"2154\"\u003eQuicksilver 7452A19\u003c\/strong\u003e is a \u003cstrong data-start=\"2160\" data-end=\"2205\"\u003egenuine Mercury Marine ignition component\u003c\/strong\u003e, built to exact specifications for ADI-equipped outboards. Aftermarket ignition parts often use lower-quality circuitry or mismatched connectors that can fail under marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"2393\" data-end=\"2662\"\u003eMercury’s OEM electrical components are engineered and tested to withstand vibration, temperature swings, and moisture exposure, ensuring consistent spark and long-term reliability. Using genuine parts means your ignition system performs like new — with no guesswork.\u003c\/p\u003e\n\u003chr data-start=\"2664\" data-end=\"2667\"\u003e\n\u003ch3 data-start=\"2669\" data-end=\"2682\"\u003e\u003cstrong data-start=\"2673\" data-end=\"2680\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2684\" data-end=\"2835\"\u003e\u003cstrong data-start=\"2684\" data-end=\"2730\"\u003eQ1: What engines does this switch box fit?\u003c\/strong\u003e\u003cbr data-start=\"2730\" data-end=\"2733\"\u003eIt fits \u003cstrong data-start=\"2741\" data-end=\"2790\"\u003eMercury and Mariner 6–25HP 2-stroke outboards\u003c\/strong\u003e with \u003cstrong data-start=\"2796\" data-end=\"2832\"\u003eADI (Alternator Driven Ignition)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2837\" data-end=\"2942\"\u003e\u003cstrong data-start=\"2837\" data-end=\"2861\"\u003eQ2: What’s included?\u003c\/strong\u003e\u003cbr data-start=\"2861\" data-end=\"2864\"\u003eA \u003cstrong data-start=\"2866\" data-end=\"2898\"\u003ecomplete switch box assembly\u003c\/strong\u003e with leads and connectors for both sides.\u003c\/p\u003e\n\u003cp data-start=\"2944\" data-end=\"3098\"\u003e\u003cstrong data-start=\"2944\" data-end=\"2993\"\u003eQ3: Do I need special tools for installation?\u003c\/strong\u003e\u003cbr data-start=\"2993\" data-end=\"2996\"\u003eYou can install it with common tools, though \u003cstrong data-start=\"3041\" data-end=\"3072\"\u003eelectronic diagnostic tools\u003c\/strong\u003e may help verify output.\u003c\/p\u003e\n\u003cp data-start=\"3100\" data-end=\"3226\"\u003e\u003cstrong data-start=\"3100\" data-end=\"3149\"\u003eQ4: What problems can a bad switch box cause?\u003c\/strong\u003e\u003cbr data-start=\"3149\" data-end=\"3152\"\u003eSymptoms include misfiring, weak spark, rough idle, or failure to start.\u003c\/p\u003e\n\u003cp data-start=\"3228\" data-end=\"3422\"\u003e\u003cstrong data-start=\"3228\" data-end=\"3267\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3267\" data-end=\"3270\"\u003eMercury OEM switch boxes provide the correct voltage, wiring, and durability tested for your specific engine — something aftermarket parts often lack.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940471329059,"sku":"339-7452A19","price":267.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/7452a19_main.jpg?v=1760631177","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-switch-box-assembly-2-cycle-outboards-339-7452a19","provider":"PartsVu","version":"1.0","type":"link"}