{"product_id":"merc-842","title":"Mercury MerCruiser Spark Plug Wire Set 863656A1","description":"\u003ch2 data-section-id=\"aowabi\" data-start=\"0\" data-end=\"70\"\u003eMercury \/ MerCruiser Quicksilver \u003cstrong data-start=\"36\" data-end=\"70\"\u003eSpark Plug Wire Set — 863656A1\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"72\" data-end=\"475\"\u003eThe \u003cstrong data-start=\"76\" data-end=\"128\"\u003eMercury Quicksilver 863656A1 Spark Plug Wire Set\u003c\/strong\u003e is a genuine OEM \u003cstrong data-start=\"146\" data-end=\"167\"\u003eignition wire kit\u003c\/strong\u003e designed for \u003cstrong data-start=\"181\" data-end=\"233\"\u003eMerCruiser V8 MPI sterndrive and inboard engines\u003c\/strong\u003e equipped with ECM-controlled ignition systems. The set delivers high-voltage current from the ignition coil and distributor to the spark plugs, ensuring reliable ignition and smooth engine performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"477\" data-end=\"480\"\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"482\" data-end=\"504\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"505\" data-end=\"769\"\u003e\n\u003cli data-section-id=\"1wsfbum\" data-start=\"505\" data-end=\"534\"\u003e\n\u003cp data-start=\"507\" data-end=\"534\"\u003e\u003cstrong data-start=\"507\" data-end=\"523\"\u003ePart Number:\u003c\/strong\u003e 863656A1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1yw20b3\" data-start=\"535\" data-end=\"570\"\u003e\n\u003cp data-start=\"537\" data-end=\"570\"\u003e\u003cstrong data-start=\"537\" data-end=\"556\"\u003eMercury Format:\u003c\/strong\u003e 84-863656A1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"io684u\" data-start=\"571\" data-end=\"623\"\u003e\n\u003cp data-start=\"573\" data-end=\"623\"\u003e\u003cstrong data-start=\"573\" data-end=\"592\"\u003eComponent Type:\u003c\/strong\u003e Spark plug ignition wire set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"tl8sf9\" data-start=\"624\" data-end=\"683\"\u003e\n\u003cp data-start=\"626\" data-end=\"683\"\u003e\u003cstrong data-start=\"626\" data-end=\"639\"\u003eIncludes:\u003c\/strong\u003e 8 spark plug wires + 1 ignition coil wire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xvppf9\" data-start=\"684\" data-end=\"769\"\u003e\n\u003cp data-start=\"686\" data-end=\"769\"\u003e\u003cstrong data-start=\"686\" data-end=\"700\"\u003eOEM Brand:\u003c\/strong\u003e Mercury Marine \/ Quicksilver \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"771\" data-end=\"774\"\u003e\n\u003ch3 data-section-id=\"1p4y2xn\" data-start=\"776\" data-end=\"813\"\u003eCompatible Engines \/ Applications\u003c\/h3\u003e\n\u003cp data-start=\"814\" data-end=\"910\"\u003eCommonly used on \u003cstrong data-start=\"831\" data-end=\"869\"\u003eMerCruiser V8 MPI gasoline engines\u003c\/strong\u003e with ECM-controlled ignition, including:\u003c\/p\u003e\n\u003cul data-start=\"912\" data-end=\"1016\"\u003e\n\u003cli data-section-id=\"k5hx4y\" data-start=\"912\" data-end=\"936\"\u003e\n\u003cp data-start=\"914\" data-end=\"936\"\u003e\u003cstrong data-start=\"914\" data-end=\"936\"\u003e5.0L MPI (305 CID)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12ytor2\" data-start=\"937\" data-end=\"961\"\u003e\n\u003cp data-start=\"939\" data-end=\"961\"\u003e\u003cstrong data-start=\"939\" data-end=\"961\"\u003e5.7L MPI \/ 350 MAG\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2nwzcq\" data-start=\"962\" data-end=\"976\"\u003e\n\u003cp data-start=\"964\" data-end=\"976\"\u003e\u003cstrong data-start=\"964\" data-end=\"976\"\u003e6.2L MPI\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13dobr8\" data-start=\"977\" data-end=\"994\"\u003e\n\u003cp data-start=\"979\" data-end=\"994\"\u003e\u003cstrong data-start=\"979\" data-end=\"994\"\u003e377 MAG MPI\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vhqo71\" data-start=\"995\" data-end=\"1016\"\u003e\n\u003cp data-start=\"997\" data-end=\"1016\"\u003e\u003cstrong data-start=\"997\" data-end=\"1016\"\u003e383 MAG Stroker\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1018\" data-end=\"1185\"\u003eTypically used on \u003cstrong data-start=\"1036\" data-end=\"1110\"\u003eMerCruiser sterndrive and inboard engines from approximately 2001–2015\u003c\/strong\u003e with \u003cstrong data-start=\"1116\" data-end=\"1144\"\u003eECM 555 ignition systems\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1187\" data-end=\"1190\"\u003e\n\u003ch3 data-section-id=\"1212f2c\" data-start=\"1192\" data-end=\"1204\"\u003eFunction\u003c\/h3\u003e\n\u003cp data-start=\"1205\" data-end=\"1393\"\u003eThe spark plug wire set transfers \u003cstrong data-start=\"1239\" data-end=\"1271\"\u003ehigh-voltage ignition energy\u003c\/strong\u003e from the ignition coil and distributor to each spark plug in the correct firing order. Properly functioning wires ensure:\u003c\/p\u003e\n\u003cul data-start=\"1395\" data-end=\"1520\"\u003e\n\u003cli data-section-id=\"19kbdw7\" data-start=\"1395\" data-end=\"1437\"\u003e\n\u003cp data-start=\"1397\" data-end=\"1437\"\u003eStrong and consistent \u003cstrong data-start=\"1419\" data-end=\"1437\"\u003espark delivery\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"163f5gr\" data-start=\"1438\" data-end=\"1475\"\u003e\n\u003cp data-start=\"1440\" data-end=\"1475\"\u003eSmooth \u003cstrong data-start=\"1447\" data-end=\"1475\"\u003eengine starting and idle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hz8ft4\" data-start=\"1476\" data-end=\"1520\"\u003e\n\u003cp data-start=\"1478\" data-end=\"1520\"\u003eReliable \u003cstrong data-start=\"1487\" data-end=\"1520\"\u003eengine performance under load\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1522\" data-end=\"1702\"\u003eThe wires are manufactured with \u003cstrong data-start=\"1554\" data-end=\"1581\"\u003emarine-grade insulation\u003c\/strong\u003e to withstand heat, vibration, and moisture common in marine engine environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1704\" data-end=\"1707\"\u003e\n\u003ch3 data-section-id=\"13qjh9y\" data-start=\"1709\" data-end=\"1746\"\u003eSymptoms of Worn Spark Plug Wires\u003c\/h3\u003e\n\u003cp data-start=\"1747\" data-end=\"1784\"\u003eA worn or damaged wire set may cause:\u003c\/p\u003e\n\u003cul data-start=\"1786\" data-end=\"1870\"\u003e\n\u003cli data-section-id=\"87qohm\" data-start=\"1786\" data-end=\"1807\"\u003e\n\u003cp data-start=\"1788\" data-end=\"1807\"\u003eEngine \u003cstrong data-start=\"1795\" data-end=\"1807\"\u003emisfires\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gmo3pk\" data-start=\"1808\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1810\" data-end=\"1834\"\u003eRough idle or hesitation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hb2z6f\" data-start=\"1835\" data-end=\"1850\"\u003e\n\u003cp data-start=\"1837\" data-end=\"1850\"\u003eHard starting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"be5ijw\" data-start=\"1851\" data-end=\"1870\"\u003e\n\u003cp data-start=\"1853\" data-end=\"1870\"\u003ePoor fuel economy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1872\" data-end=\"1937\"\u003eReplacing the wire set helps restore proper ignition performance.\u003c\/p\u003e\n\u003chr data-start=\"1939\" data-end=\"1942\"\u003e\n\u003cp data-start=\"1944\" data-end=\"2169\"\u003e⚠️ \u003cstrong data-start=\"1947\" data-end=\"1963\"\u003eFitment Tip:\u003c\/strong\u003e\u003cbr data-start=\"1963\" data-end=\"1966\"\u003eAlways verify compatibility using the \u003cstrong data-start=\"2004\" data-end=\"2038\"\u003eengine model and serial number\u003c\/strong\u003e. MerCruiser MPI engines may use different ignition wire sets depending on the \u003cstrong data-start=\"2117\" data-end=\"2168\"\u003eignition system and distributor style installed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOEM parts ship same or next day for fast Canada wide shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Spark plug wire set\u003c\/li\u003e\n\u003cli\u003eCompatible with: Mercury MerCruiser marine engines\u003c\/li\u003e\n\u003cli\u003ePart Number: 863656A1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563896373284,"sku":"863656A1","price":229.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/8af7b332-7d9f-4d18-ab0c-bae9f8cef5ba.png?v=1773359833","url":"https:\/\/marisolmarine.com\/products\/merc-842","provider":"Marisol Marine Company","version":"1.0","type":"link"}