{"title":"MerCruiser 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eThis page is dedicated to MerCruiser 4‑Stroke outboard engines. Use it to find compatible parts and key service information, including maintenance intervals, common replacement items, and troubleshooting tips. You can also browse the main MerCruiser collection for a wider selection. Scroll to the bottom of this page to begin browsing parts for this engine, and remember that on the collection page you can use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser\" style=\"display:inline-block;background:#0a5;border-radius:4px;color:#fff;text-decoration:none;padding:10px 14px;\"\u003eBrowse All MerCruiser Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 4‑Stroke Outboard Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the serial\/model plate on the transom bracket or swivel bracket; some models also have a label under the top cowl. Record the full serial number.\u003c\/li\u003e\n    \u003cli\u003eModel codes typically include horsepower plus suffixes for start type (electric\/manual), shaft length (S\/L\/XL), and control\/steering (tiller\/remote). A year or generation code may follow.\u003c\/li\u003e\n    \u003cli\u003eFour‑stroke identifiers: an external oil filter on the powerhead and an engine oil fill\/dipstick under the cowl.\u003c\/li\u003e\n    \u003cli\u003ePlatform hints: midrange models are usually inline (compact cowl, smaller gearcase); higher‑output models are often V6\/V8 (larger cowl and gearcase).\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eMidrange Four‑Stroke (Inline‑4)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eInline‑4, EFI, 4‑stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eTypical 75–150 hp four‑stroke outboards\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eEfficient, smooth operation with broad mid‑range torque and low weight for the class\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eService parts (oil filters, plugs, water pump kits) are often family‑specific; verify by serial\/model to avoid generation mismatches.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eLarge Four‑Stroke (V6\/V8)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eV6\/V8, DOHC, EFI, 4‑stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eTypical 175–300+ hp four‑stroke outboards\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eStrong hole‑shot and top‑end power, robust charging output for accessories\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eGearcase and cooling parts can differ by gearcase size and ratio. 100‑hour and 300‑hour service kits are common for these platforms.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for four‑stroke outboards. Always follow the schedule and procedures in your official service manual.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:1000px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eAfter break‑in, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eWarm engine before draining; replace crush washer if applicable\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eCheck for water intrusion (milky oil); replace seals if contaminated\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eInspect 100 hrs; replace 300 hrs or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eGap to spec; replace any fouled or worn plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eFuel filter \/ water‑separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eDrain water bowl periodically; replace cartridge on schedule\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eEvery 2–3 seasons or 200–300 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eReplace sooner if weak telltale, overheating, or sand\/silt use\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eInspect every 50 hrs; replace when \u0026gt;50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eUse the correct alloy (salt, brackish, or freshwater)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eLower unit seals (if leak suspected)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eAs needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eLook for fishing line on prop shaft or milky gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service Kits — \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System — \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical — \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/starters\"\u003eStarters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \u0026amp; Seals — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:1000px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eWeak telltale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eInspect intake screens for debris; verify impeller condition; confirm thermostat operation\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eWater pump kit, thermostat, intake screen, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eCheck prop hub for slipping, replace fuel filter, inspect spark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003ePropeller\/hub, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eVerify battery voltage and connections; prime fuel system; inspect plugs and fuel lines\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eSpark plugs, fuel filter, starter, fuel hoses, injectors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eDrain and inspect gear oil; check for fishing line on prop shaft; pressure\/vacuum test if needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 6px;\"\u003eLower unit seal kit, bearings, shims; fresh gear oil\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome consumables (anodes, filters, plugs) may overlap, but many parts are platform‑ and generation‑specific. Always confirm by serial\/model and gearcase size before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a preventive service, replace the impeller every 2–3 seasons (200–300 hours), or immediately if the telltale weakens, the engine overheats, or the pump has run dry or ingested sand\/silt.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange lower unit gear oil every 100 hours or annually, and any time the oil appears milky or contaminated with water or metal particles.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full serial number, model code, horsepower, shaft length, and any visible part numbers from the old component. A clear photo of the nameplate and the part area is very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eReady to find the right parts? Browse the main MerCruiser collection and refine by horsepower, year, and model to zero in on compatible components.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser\" style=\"display:inline-block;background:#0a5;border-radius:4px;color:#fff;text-decoration:none;padding:10px 14px;\"\u003eShop MerCruiser Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#444;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"exhaust-elbow-gasket-fits-mercruiser-v6-v8-replaces-27-41813-27-860233","title":"MerCruiser Exhaust Elbow Gasket – Fits V6 and V8 Wet-Joint Applications, Replaces 27-41813, 27-860233","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\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\n  \/* Small screen optimization *\/\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\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis is a high-quality aftermarket \u003cstrong\u003eMerCruiser exhaust elbow gasket\u003c\/strong\u003e for the joint between the exhaust manifold and riser\/elbow. It is sold individually and is designed for applicable MerCruiser stern-drive and inboard gasoline engines using the specified exhaust-manifold and elbow configuration.\u003c\/p\u003e\n    \u003cp\u003eThe gasket is listed for MerCruiser wet-joint applications covering V6 engines using GM 229\/262 CID, V8 small-block engines using GM 305\/350\/377 CID, and V8 big-block engines using GM 454\/502 CID. The company fitment information also lists it as a dry-joint alternative for applicable GM V6\/V8 small-block applications. Always compare the existing gasket and exhaust-joint configuration before ordering.\u003c\/p\u003e\n    \u003cp\u003eListed manufacturer and aftermarket references include Mercury\/MerCruiser 27-41813, 27-860233 and 27-863724, plus Sierra 18-0897, GLM 30240 and Mallory 9-61413. These numbers are reference identifiers; confirm the complete engine, manifold, riser and joint configuration for your application.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstallation Location:\u003c\/strong\u003e Between the exhaust manifold and the riser\/elbow.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Exhaust elbow, riser or manifold-to-elbow gasket.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCooling Applications:\u003c\/strong\u003e Listed for raw-water-cooled exhaust-manifold applications.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct Format:\u003c\/strong\u003e Single gasket, sold individually.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n    \u003cp\u003eUse the following references to compare the gasket with your existing part and service-manual information.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n      \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eBrand or Source\u003c\/th\u003e\n            \u003cth\u003eListed Part 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\u003e27-41813\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e27-860233\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e27-863724\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e27-863724Q\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e863724B\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e863724Q\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n\u003ctd\u003e863724\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-0897\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e30240\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-61413\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e0508716\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\u003eThese application groups are taken from the listed product fitment. Model, serial-number, manifold style and joint type must be checked together.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n        \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eBrand\u003c\/th\u003e\n                    \u003cth\u003eModel or Engine Group\u003c\/th\u003e\n                    \u003cth\u003eEngine Details\u003c\/th\u003e\n                    \u003cth\u003eJoint Type\u003c\/th\u003e\n                    \u003cth\u003eCooling\u003c\/th\u003e\n                    \u003cth\u003eReference\u003c\/th\u003e\n                    \u003cth\u003eNotes\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\u003e175–205 V6\u003c\/td\u003e\n                    \u003ctd\u003eGM 229\/262 CID\u003c\/td\u003e\n                    \u003ctd\u003eWet joint\u003c\/td\u003e\n                    \u003ctd\u003eRaw-water application\u003c\/td\u003e\n                    \u003ctd\u003e27-863724; 27-41813; 27-860233\u003c\/td\u003e\n                    \u003ctd\u003eApplicable exhaust manifold-to-elbow gasket configuration\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMerCruiser\u003c\/td\u003e\n                    \u003ctd\u003e200–320 V8 small-block\u003c\/td\u003e\n                    \u003ctd\u003eGM 305\/350\/377 CID\u003c\/td\u003e\n                    \u003ctd\u003eWet joint\u003c\/td\u003e\n                    \u003ctd\u003eRaw-water application\u003c\/td\u003e\n                    \u003ctd\u003e27-863724; 27-41813; 27-860233\u003c\/td\u003e\n                    \u003ctd\u003eVerify manifold and riser configuration\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMerCruiser\u003c\/td\u003e\n                    \u003ctd\u003e330–370 V8 big-block\u003c\/td\u003e\n                    \u003ctd\u003eGM 454\/502 CID\u003c\/td\u003e\n                    \u003ctd\u003eWet joint\u003c\/td\u003e\n                    \u003ctd\u003eRaw-water application\u003c\/td\u003e\n                    \u003ctd\u003e27-863724; 27-41813; 27-860233\u003c\/td\u003e\n                    \u003ctd\u003eVerify manifold and riser configuration\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMerCruiser\u003c\/td\u003e\n                    \u003ctd\u003eGM V6\/V8 small-block\u003c\/td\u003e\n                    \u003ctd\u003eApplicable listed applications\u003c\/td\u003e\n                    \u003ctd\u003eDry-joint alternative\u003c\/td\u003e\n                    \u003ctd\u003eConfirm system design\u003c\/td\u003e\n                    \u003ctd\u003e27-863724 family\u003c\/td\u003e\n                    \u003ctd\u003eUse only when the dry-joint configuration matches the gasket design\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\u003eProduct Type\u003c\/dt\u003e\n        \u003cdd\u003eExhaust elbow, riser or manifold-to-elbow gasket\u003c\/dd\u003e\n        \u003cdt\u003eInstallation\u003c\/dt\u003e\n        \u003cdd\u003eBetween exhaust manifold and riser\/elbow\u003c\/dd\u003e\n        \u003cdt\u003eApplication\u003c\/dt\u003e\n        \u003cdd\u003eApplicable MerCruiser stern-drive and inboard gasoline engines\u003c\/dd\u003e\n        \u003cdt\u003eEngine Groups\u003c\/dt\u003e\n        \u003cdd\u003eGM 229\/262 CID V6; GM 305\/350\/377 CID V8 small-block; GM 454\/502 CID V8 big-block\u003c\/dd\u003e\n        \u003cdt\u003eJoint Applications\u003c\/dt\u003e\n        \u003cdd\u003eListed wet-joint applications and a dry-joint alternative for applicable GM V6\/V8 small-block configurations\u003c\/dd\u003e\n        \u003cdt\u003eCooling Application\u003c\/dt\u003e\n        \u003cdd\u003eListed for raw-water-cooled exhaust-manifold applications\u003c\/dd\u003e\n        \u003cdt\u003eQuantity\u003c\/dt\u003e\n        \u003cdd\u003e1 gasket\u003c\/dd\u003e\n        \u003cdt\u003eInstallation Reference\u003c\/dt\u003e\n        \u003cdd\u003eMercury\/MerCruiser 27-41813, 27-860233 and 27-863724; Sierra 18-0897\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\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Exhaust Elbow Gasket\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eEnsure the engine is completely cool and disconnect the battery before starting.\u003c\/li\u003e\n        \u003cli\u003eClose or drain the cooling system as required by the service procedure so coolant or raw water will not enter the work area.\u003c\/li\u003e\n        \u003cli\u003eRemove the exhaust elbow or riser from the manifold and retain the bolts and hardware.\u003c\/li\u003e\n        \u003cli\u003eThoroughly clean both mating surfaces. Remove old gasket material, corrosion and debris without damaging the sealing faces.\u003c\/li\u003e\n        \u003cli\u003ePlace the new gasket in the correct orientation, aligning the bolt holes and water passages with the manifold and elbow.\u003c\/li\u003e\n        \u003cli\u003eReinstall the elbow or riser and tighten the fasteners in the correct sequence and to the torque specified by the engine or service-manual instructions.\u003c\/li\u003e\n        \u003cli\u003eRestore the cooling system, reconnect the battery, start the engine and inspect the joint for leaks after installation.\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 this gasket will fit my engine?\u003c\/summary\u003e\n        \u003cp\u003eConfirm that your engine is within one of the listed MerCruiser application groups: GM 229\/262 CID V6, GM 305\/350\/377 CID V8 small-block, or GM 454\/502 CID V8 big-block. Also verify the manifold, riser\/elbow, joint style and cooling arrangement. Engine model or horsepower alone is not sufficient to confirm fitment.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs this a complete gasket kit?\u003c\/summary\u003e\n        \u003cp\u003eNo. This listing is for one exhaust elbow gasket sold individually. It does not include manifold gaskets, additional elbow gaskets, O-rings, bolts, risers or other repair-kit components.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs this gasket for wet-joint or dry-joint exhaust?\u003c\/summary\u003e\n        \u003cp\u003eThe listed applications primarily cover wet-joint exhaust manifolds, and the company fitment information also identifies a dry-joint alternative for applicable GM V6\/V8 small-block configurations. Confirm the actual joint design and compare the original gasket before installation.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDo I need to use sealant with this gasket?\u003c\/summary\u003e\n        \u003cp\u003eDo not apply sealant unless the engine manufacturer or service manual specifically requires it. Install the gasket on clean, dry mating surfaces and keep sealant away from coolant and raw-water passages.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are the signs of a failing exhaust elbow gasket?\u003c\/summary\u003e\n        \u003cp\u003ePossible signs include water or coolant leakage at the manifold-to-elbow joint, rust trails, exhaust leakage, water contamination of the engine oil, or overheating. Inspect the mating surfaces and surrounding components before replacing the gasket.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n        \u003cp\u003eThis listing is for an aftermarket replacement gasket. The displayed Mercury\/MerCruiser, Sierra, GLM, Mallory and OMC numbers are manufacturer or aftermarket reference numbers used for comparison and identification.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat should I verify before ordering?\u003c\/summary\u003e\n        \u003cp\u003eVerify the complete engine model, serial-number range, manifold and riser\/elbow configuration, joint style, cooling system and original gasket shape. The same engine family can use different gasket designs depending on the exhaust components installed.\u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eWork only on a fully cooled engine and follow the applicable marine service-manual procedure.\u003c\/li\u003e\n        \u003cli\u003eVerify the gasket shape, openings and mating configuration against the original part before installation.\u003c\/li\u003e\n        \u003cli\u003eDo not treat a reference number alone as confirmation of fitment; keep model, engine details, joint type and cooling arrangement together.\u003c\/li\u003e\n        \u003cli\u003eProfessional installation is recommended when removing exhaust manifolds or risers.\u003c\/li\u003e\n        \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components for selected stern-drive and inboard applications.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product information is organized around engine, manifold, riser and cooling-system compatibility.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eValue-Oriented Solutions\u003c\/strong\u003e — Aftermarket replacement parts for routine marine maintenance and repair.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723788554555,"sku":"23GT303","price":11.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/2PCS_Exhaust_Elbow_Gasket_for_MerCruiser_1981-1997_GM_V6_V8_Stern_Drive________27-863724Q_-_JLM_MARINE-8287564.jpg?v=1763031788"}],"url":"https:\/\/seasierra.com\/collections\/mercruiser-4-stroke-outboard-marine-engine-parts-1.oembed","provider":"SeaSierra","version":"1.0","type":"link"}