{"product_id":"crankshaft-position-sensor-fits-mercruiser-volvo-penta-4-3l-5-0l-6-2l-replaces-864297t01-864297-3858979","title":"Crankshaft Position Sensor – Fits MerCruiser Volvo Penta 4.3L 5.0L 6.2L (Replaces 864297T01, 864297, 3858979)","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 Crankshaft Position Sensor is designed for MerCruiser and Volvo Penta marine engines, including 4.3L, 5.0L, and 6.2L models from 1998 to 2010. The sensor monitors crankshaft rotation and position, providing critical data to the engine control module for precise ignition timing and fuel delivery.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket replacement directly crosses to Mercury MerCruiser 864297T01, 864297, 864297001, OMC Volvo Penta 3858979, and Sierra Marine 18-7556.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect bolt-on replacement for factory crankshaft sensors\u003c\/li\u003e\n  \u003cli\u003eCompatible with GM V8 marine engine platforms\u003c\/li\u003e\n  \u003cli\u003eSuitable for freshwater and saltwater applications\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\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e864297T01\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e864297\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e864297001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC Volvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3858979\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra Marine\u003c\/td\u003e\n        \u003ctd\u003e18-7556\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\u003eYears\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC \/ Volvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3L\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC \/ Volvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.0L\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC \/ Volvo Penta\u003c\/td\u003e\n        \u003ctd\u003e6.2L\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0L\u003c\/td\u003e\n        \u003ctd\u003e1998–2010\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e6.2L\u003c\/td\u003e\n        \u003ctd\u003e1998–2010\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e305-350 GM V8\u003c\/td\u003e\n        \u003ctd\u003e\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\u003eSensor Type\u003c\/dt\u003e\n  \u003cdd\u003eCrankshaft Position Sensor\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMarine Engine\u003c\/dd\u003e\n  \u003cdt\u003eEngine Displacement\u003c\/dt\u003e\n  \u003cdd\u003e4.3L, 5.0L, 6.2L\u003c\/dd\u003e\n  \u003cdt\u003eCompatible Engine Series\u003c\/dt\u003e\n  \u003cdd\u003eGM V8 (305-350)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1× Crankshaft Position Sensor\u003c\/strong\u003e (for marine engine use)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect battery negative terminal before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing crankshaft position sensor on the engine block, typically near the flywheel or harmonic balancer.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the electrical connector from the old sensor.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolt(s) securing the sensor to the engine.\u003c\/li\u003e\n  \u003cli\u003eCarefully extract the old sensor from its mounting position.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface to remove any debris or corrosion.\u003c\/li\u003e\n  \u003cli\u003eInsert the new sensor into position, ensuring proper alignment with the reluctor ring or trigger wheel.\u003c\/li\u003e\n  \u003cli\u003eInstall and torque the mounting bolt(s) to manufacturer specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connector, ensuring a secure fit.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and clear any stored fault codes using a diagnostic tool if necessary.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and verify normal operation and idle quality.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the symptoms of a failing crankshaft position sensor?\u003c\/summary\u003e\u003cp\u003eCommon signs include hard starting, rough idle, engine stalling, misfires, poor acceleration, and illuminated check-engine lights. The engine may also fail to start if the sensor provides no signal to the ECM.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this sensor work on both MerCruiser and Volvo Penta engines?\u003c\/summary\u003e\u003cp\u003eYes, this sensor is designed to replace the OEM part on both MerCruiser 5.0L and 6.2L engines (1998–2010) and OMC\/Volvo Penta 4.3L, 5.0L, and 6.2L models that originally used the referenced part numbers.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm the correct sensor gap?\u003c\/summary\u003e\u003cp\u003eMost crankshaft position sensors are self-adjusting and do not require manual gap setting. Ensure the sensor is fully seated in its mounting position and torqued properly; the air gap will be correct by design.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan a faulty sensor cause my engine to lose power?\u003c\/summary\u003e\u003cp\u003eYes. An unreliable signal from the crankshaft position sensor can cause incorrect ignition timing and fuel delivery, leading to power loss, hesitation, or complete engine shutdown.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should this sensor be replaced?\u003c\/summary\u003e\u003cp\u003eReplace the sensor when you experience performance issues or fault codes related to crankshaft position. There is no fixed interval, but sensors typically last several years under normal marine conditions.\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":51025808752955,"sku":"23PS378","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_dfa13a9d-43f3-4fe3-92ab-3cd398bac5f6.jpg?v=1772959402","url":"https:\/\/seasierra.com\/products\/crankshaft-position-sensor-fits-mercruiser-volvo-penta-4-3l-5-0l-6-2l-replaces-864297t01-864297-3858979","provider":"SeaSierra","version":"1.0","type":"link"}