{"product_id":"oil-pan-gasket-fits-mercruiser-volvo-penta-4-3l-gm-v6-replaces-27-142471-142471-2112485-856402","title":"Oil Pan Gasket – Fits MerCruiser Volvo Penta 4.3L GM V6 (Replaces 27-142471, 142471, 2112485, 856402)","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\u003eOil Pan Gasket\u003c\/strong\u003e is engineered for MerCruiser and Volvo Penta 4.3L GM V6 marine engines, including MCM 262 Mag, 4.3L LX\/LH\/LHX Gen+ (1996 and up), as well as Indmar 4.3L V6 marine power applications. It provides a reliable seal between the oil pan and engine block to prevent leaks and maintain proper lubrication.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket gasket directly replaces Mercury MerCruiser 27-142471, 142471, 14247T1, 27-14247T1, Sierra 18-61513, and Volvo Penta 2112485, 21124852, 3852655, 3855801, 856402.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in replacement for OEM gasket assemblies\u003c\/li\u003e\n\u003cli\u003eCompatible with marine V6 engine configurations 1996 and newer\u003c\/li\u003e\n\u003cli\u003eDesigned for oil pan sealing applications in saltwater and freshwater environments\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\u003e27-142471\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e142471\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e14247T1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e27-14247T1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-61513\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e2112485\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e21124852\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3852655\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3855801\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e856402\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\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eMCM 262 Mag\u003c\/td\u003e\n        \u003ctd\u003e1996–Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3L LX \/ LH \/ LHX Gen+\u003c\/td\u003e\n        \u003ctd\u003e1996–Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eAll GM V6\u003c\/td\u003e\n        \u003ctd\u003e1996–Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3L V6 Marine Engines\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eIndmar\u003c\/td\u003e\n        \u003ctd\u003e4.3L V6 Marine Power Engines\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\u003eEngine Compatibility\u003c\/dt\u003e\n  \u003cdd\u003e4.3L GM V6 Marine\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eOil Pan Gasket Seal\u003c\/dd\u003e\n  \u003cdt\u003eFitment Years\u003c\/dt\u003e\n  \u003cdd\u003e1996 and Up\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e27-142471\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 Marine Oil Pan Gasket Seal\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDrain all engine oil and remove the oil pan from the engine block.\u003c\/li\u003e\n\u003cli\u003eThoroughly clean both mating surfaces on the oil pan and engine block, removing all old gasket material and oil residue.\u003c\/li\u003e\n\u003cli\u003eInspect surfaces for warping, cracks, or damage that could compromise the seal.\u003c\/li\u003e\n\u003cli\u003ePosition the new gasket on the oil pan, aligning all bolt holes carefully.\u003c\/li\u003e\n\u003cli\u003eApply thread sealant to pan bolts if specified by your engine manual.\u003c\/li\u003e\n\u003cli\u003eReinstall the oil pan and hand-tighten all bolts in a crisscross pattern.\u003c\/li\u003e\n\u003cli\u003eTorque bolts to manufacturer specifications using a torque wrench, working from the center outward.\u003c\/li\u003e\n\u003cli\u003eRefill with the correct grade and quantity of marine engine oil.\u003c\/li\u003e\n\u003cli\u003eRun the engine and inspect for leaks around the oil pan perimeter.\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 oil pan gasket needs replacement?\u003c\/summary\u003e\u003cp\u003eCommon signs include visible oil pooling beneath the engine, oil streaks along the oil pan seam, low oil level between changes, or burning oil smell during operation. Inspect the pan gasket area regularly during routine maintenance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this gasket fit older MerCruiser 4.3L engines?\u003c\/summary\u003e\u003cp\u003eThis gasket is designed for 1996 and newer GM V6 4.3L models. Pre-1996 engines may use different gasket designs or dimensions. Always verify your engine year and part number before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need sealant with this gasket?\u003c\/summary\u003e\u003cp\u003eRefer to your engine service manual. Some installations require a thin bead of RTV silicone on specific areas, while others are installed dry. Over-application of sealant can cause leaks or blockages.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I reuse an oil pan gasket?\u003c\/summary\u003e\u003cp\u003eNo. Oil pan gaskets are designed for single use. Once compressed, they cannot form a proper seal if removed and reinstalled. Always replace with a new gasket when servicing the oil pan.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat torque specification should I use for oil pan bolts?\u003c\/summary\u003e\u003cp\u003eTorque specifications vary by engine model. Consult your MerCruiser or Volvo Penta service manual for the correct value and tightening sequence. Typical range is 10–18 ft-lbs, applied in a crisscross pattern.\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\u003eIs this gasket compatible with both saltwater and freshwater engines?\u003c\/summary\u003e\u003cp\u003eYes. The gasket material is suitable for all marine environments, including saltwater, freshwater, and brackish conditions, provided the engine is maintained according to manufacturer guidelines.\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":51025806426427,"sku":"23GT299","price":27.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_75c88ddb-bf75-4fb6-8692-114df581551d.jpg?v=1772959299","url":"https:\/\/seasierra.com\/products\/oil-pan-gasket-fits-mercruiser-volvo-penta-4-3l-gm-v6-replaces-27-142471-142471-2112485-856402","provider":"SeaSierra","version":"1.0","type":"link"}