{"product_id":"ignition-coil-harness-fits-volvo-penta-3-0l-4-3l-5-0l-5-7l-7-4l-v6-v8-replaces-3854084-3850279","title":"Ignition Coil Harness – Fits Volvo Penta 3.0L 4.3L 5.0L 5.7L 7.4L V6 V8 (Replaces 3854084, 3850279)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eIgnition Coil Harness\u003c\/strong\u003e is engineered for Volvo Penta marine sterndrive engines including 3.0L (181 CID), 4.3L V6 (262 CID), 5.0L and 5.7L small-block V8, and 7.4L \/ 8.2L big-block V8 models. Designed to provide reliable spark distribution from the ignition coil to the distributor in demanding marine environments.\u003c\/p\u003e\n\u003cp\u003eThis harness directly replaces Volvo Penta part numbers 3854084 and 3850279, delivering OEM-equivalent connectivity and durability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect plug-and-play replacement for factory harness\u003c\/li\u003e\n  \u003cli\u003eCompatible with Volvo Penta V6 and V8 gasoline marine engines\u003c\/li\u003e\n  \u003cli\u003eMarine-grade construction resists moisture and vibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3854084\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3.0L (181 CID)\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3L V6 (262 CID)\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.0L V8 Small Block\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.7L V8 Small Block\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e7.4L V8 Big Block\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e8.2L V8 Big Block\u003c\/td\u003e\n        \u003ctd\u003e3854084, 3850279\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003ePart Type\u003c\/dt\u003e\n  \u003cdd\u003eIgnition Coil Harness \/ Distributor Lead\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eVolvo Penta Marine Sterndrive Engines\u003c\/dd\u003e\n  \u003cdt\u003eEngine Displacement\u003c\/dt\u003e\n  \u003cdd\u003e3.0L, 4.3L, 5.0L, 5.7L, 7.4L, 8.2L\u003c\/dd\u003e\n  \u003cdt\u003eConfiguration\u003c\/dt\u003e\n  \u003cdd\u003eV6 \u0026amp; V8 Gasoline\u003c\/dd\u003e\n  \u003cdt\u003eReplaces OEM\u003c\/dt\u003e\n  \u003cdd\u003e3854084, 3850279\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e1 × Ignition Coil Harness\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery negative terminal before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLocate the ignition coil and distributor on your Volvo Penta engine.\u003c\/li\u003e\n  \u003cli\u003eRemove the old harness by carefully disconnecting both ends—note routing and orientation.\u003c\/li\u003e\n  \u003cli\u003eInspect the coil and distributor terminals for corrosion or damage; clean if necessary.\u003c\/li\u003e\n  \u003cli\u003eRoute the new harness along the same path as the original, avoiding sharp edges and heat sources.\u003c\/li\u003e\n  \u003cli\u003eConnect the harness terminals to the ignition coil and distributor, ensuring a snug fit.\u003c\/li\u003e\n  \u003cli\u003eSecure the harness with factory clips or ties to prevent chafing.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and verify the engine starts and runs smoothly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my ignition coil harness is failing?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include intermittent misfires, rough idling, difficulty starting, or engine stalling. If you notice these issues along with visible damage to the wire insulation or corrosion at the terminals, replacement is recommended.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit both my 5.0L and 5.7L Volvo Penta engines?\u003c\/summary\u003e\u003cp\u003eYes. This harness is compatible with both small-block V8 (5.0L and 5.7L) and big-block (7.4L and 8.2L) Volvo Penta marine engines, as well as the 3.0L and 4.3L V6 models.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install this harness myself?\u003c\/summary\u003e\u003cp\u003eInstallation is straightforward for users familiar with basic marine engine maintenance. Disconnect the battery, remove the old harness, route the new one identically, and reconnect. If you're unsure, professional installation is recommended.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between this harness and the OEM version?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement built to OEM-level specifications using comparable materials. It provides the same electrical connectivity and durability as the factory part, at a more competitive price point.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the harness compatible with earlier or later model years?\u003c\/summary\u003e\u003cp\u003eThis harness fits Volvo Penta 3.0L, 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L sterndrive engines that originally used part numbers 3854084 or 3850279. Confirm your engine's part number before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the ignition coil harness be replaced?\u003c\/summary\u003e\u003cp\u003eReplace the harness when you observe physical damage, cracks in the insulation, corrosion at connectors, or ignition-related performance issues. Routine inspection during annual service is recommended.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025605689659,"sku":"23CB374","price":29.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_c78a90d9-2f70-40f0-b30e-571b01ddd982.jpg?v=1772928043","url":"https:\/\/seasierra.com\/products\/ignition-coil-harness-fits-volvo-penta-3-0l-4-3l-5-0l-5-7l-7-4l-v6-v8-replaces-3854084-3850279","provider":"SeaSierra","version":"1.0","type":"link"}