{"product_id":"map-sensor-fits-volvo-penta-omc-4-3l-5-0l-5-7l-7-4l-replaces-3850396-18-7684","title":"MAP Sensor – Fits Volvo Penta OMC 4.3L 5.0L 5.7L 7.4L (Replaces 3850396, 18-7684)","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\u003eMAP Sensor\u003c\/strong\u003e is engineered for Volvo Penta and OMC marine engines, including 4.3L, 5.0L, 5.7L, and 7.4L fuel-injected models spanning 1994–2007. Designed to ensure accurate manifold pressure readings, this sensor supports reliable engine performance across a broad range of displacement configurations.\u003c\/p\u003e\n\u003cp\u003eDirect aftermarket replacement for OEM numbers 3850396 (Volvo Penta \/ OMC) and Sierra Marine 18-7684.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L (1994–2007) and OMC 4.3L TBI, 5.0L TBI, 5.7L TBI, 7.4L, 8.2L (1995–1998)\u003c\/li\u003e\n  \u003cli\u003eMarine-specific design built to withstand saltwater and harsh operating environments\u003c\/li\u003e\n  \u003cli\u003ePrecision fit for plug-and-play installation on fuel-injected systems\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\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e3850396\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3850396\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra Marine\u003c\/td\u003e\n        \u003ctd\u003e18-7684\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\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3L\u003c\/td\u003e\n        \u003ctd\u003e1994–2007\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.0L\u003c\/td\u003e\n        \u003ctd\u003e1994–2007\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.7L\u003c\/td\u003e\n        \u003ctd\u003e1994–2007\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e7.4L\u003c\/td\u003e\n        \u003ctd\u003e1994–2007\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e4.3L TBI\u003c\/td\u003e\n        \u003ctd\u003e1996–1998\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e5.0L TBI\u003c\/td\u003e\n        \u003ctd\u003e1998\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e5.7L TBI\u003c\/td\u003e\n        \u003ctd\u003e1996–1998\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e7.4L\u003c\/td\u003e\n        \u003ctd\u003e1995–1998\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e8.2L\u003c\/td\u003e\n        \u003ctd\u003e1998\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\u003eOEM Number\u003c\/dt\u003e\n  \u003cdd\u003e3850396\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMarine fuel-injected engines\u003c\/dd\u003e\n  \u003cdt\u003eSensor Type\u003c\/dt\u003e\n  \u003cdd\u003eManifold Absolute Pressure (MAP)\u003c\/dd\u003e\n  \u003cdt\u003eCompatibility\u003c\/dt\u003e\n  \u003cdd\u003eVolvo Penta \u0026amp; OMC 4.3L, 5.0L, 5.7L, 7.4L, 8.2L models\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\n\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery negative terminal to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLocate the MAP sensor on the intake manifold or firewall, depending on your engine configuration.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the electrical connector from the old sensor.\u003c\/li\u003e\n  \u003cli\u003eRemove any mounting bolts or clips securing the sensor, then extract the old unit.\u003c\/li\u003e\n  \u003cli\u003eInspect the vacuum hose (if present) for cracks or blockages; replace if necessary.\u003c\/li\u003e\n  \u003cli\u003eInstall the new MAP sensor, ensuring a secure seal at the mounting surface.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connector until it clicks into place.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and start the engine to verify proper operation and check for error codes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my MAP sensor has failed?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include rough idling, poor acceleration, reduced fuel economy, check-engine light, or the engine stalling under load. A diagnostic scan tool can confirm fault codes related to manifold pressure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this sensor suitable for saltwater use?\u003c\/summary\u003e\n  \u003cp\u003eYes. This sensor is designed specifically for marine environments and built to resist corrosion from saltwater exposure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this work on carbureted engines?\u003c\/summary\u003e\n  \u003cp\u003eNo. This MAP sensor is designed exclusively for fuel-injected marine engines. Carbureted systems do not use MAP sensors.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDo I need to reprogram the ECU after installation?\u003c\/summary\u003e\n  \u003cp\u003eTypically not. Most systems will auto-calibrate once the new sensor is installed. Clearing stored error codes with a scan tool is recommended.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I clean and reuse my old MAP sensor?\u003c\/summary\u003e\n  \u003cp\u003eCleaning is rarely effective for failed MAP sensors. Internal components may be damaged, and improper cleaning can worsen performance. Replacement is the safest option.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat's the difference between this and the OEM part?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow quickly will my order ship?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eReturns and product support\u003c\/summary\u003e\n\u003cp\u003eFor return eligibility, deadlines and instructions, see \u003ca href=\"https:\/\/seasierra.com\/policies\/refund-policy\"\u003eSeaSierra’s Refund Policy\u003c\/a\u003e. Contact SeaSierra before ordering if you need product-specific warranty information.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat tools are required for installation?\u003c\/summary\u003e\n  \u003cp\u003eBasic hand tools such as a socket set or wrench to remove mounting hardware, plus a flathead screwdriver or pick to release the electrical connector. A diagnostic scan tool is useful for clearing codes after installation.\u003c\/p\u003e\n\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":51025808163131,"sku":"23MS375","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_71f59801-9716-46ad-a187-b9c55334d01d.jpg?v=1772959373","url":"https:\/\/seasierra.com\/products\/map-sensor-fits-volvo-penta-omc-4-3l-5-0l-5-7l-7-4l-replaces-3850396-18-7684","provider":"SeaSierra","version":"1.0","type":"link"}