{"product_id":"aib2c-exhaust-elbow-gasket-set-for-mercruiser-4-piece-direct-fit-composite-seal","title":"AIB2C Exhaust Elbow Gasket Set for Mercruiser — 4‑Piece Direct‑Fit Composite Seal","description":"\u003cp\u003e\u003cstrong\u003eAIB2C Exhaust Elbow Gasket 18-2849-1 (fits Mercruiser 27-818832, 27-863726) is a four-piece aftermarket gasket set engineered to restore a tight, OEM-pattern seal between exhaust elbow and manifold on compatible Mercruiser stern drives.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen your stern drive shows signs of exhaust or coolant leakage near the elbow\/manifold joint, replacing the gasket with correctly sized, durable parts is a simple maintenance step that prevents corrosion and performance loss. This AIB2C set contains four gaskets made from high-quality material that match original hole and port patterns for a direct fit. It replaces several OEM and aftermarket references so installers can swap them in without modifying mating surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this gasket fit my Mercruiser stern drive?\u003c\/h3\u003e\n\u003cp\u003eThe AIB2C gasket set is manufactured to replicate OEM hole spacing and port contours so it aligns with exhaust elbow flanges on many Mercruiser models. That ensures bolt holes register cleanly and the exhaust\/coolant passageways remain unobstructed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit replacement for Mercruiser part numbers including 27-863726 and 27-818832\u003c\/li\u003e\n  \u003cli\u003eReplaces Mallory 9-61414, GLM 32080, Osco 8503-GO for cross-compatibility\u003c\/li\u003e\n  \u003cli\u003eFour pieces included for multi-port or twin exhaust setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and durability can I expect?\u003c\/h3\u003e\n\u003cp\u003eThese gaskets are produced from a resilient, heat- and corrosion-resistant composite designed for marine exhaust conditions. They provide a reliable seal under temperature cycling and exposure to saltwater environments when installed correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-quality composite construction resists compression set and deterioration\u003c\/li\u003e\n  \u003cli\u003eDesigned for repeated thermal expansion and contraction\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant to prolong manifold and elbow life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install the AIB2C Exhaust Elbow Gasket set?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic marine engine work: remove the old gasket, clean mating surfaces thoroughly, position the new gasket so bolt holes align, then torque bolts to manufacturer specs. Use recommended sealants only if specified by your engine manual.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove old gasket and clean surfaces to bare metal or factory finish\u003c\/li\u003e\n  \u003cli\u003eAlign gasket with bolt holes and exhaust\/coolant ports before tightening\u003c\/li\u003e\n  \u003cli\u003eTighten bolts in a crisscross pattern to the engine maker’s torque settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and part numbers does this replace or match?\u003c\/h3\u003e\n\u003cp\u003eThis four-piece set is intended to match a range of Mercruiser exhaust elbow\/manifold configurations and cross-references multiple OEM and aftermarket part numbers. Confirm compatibility with your engine model and serial number before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Mercruiser: 27-863726, 27-818832, 27-860232, 27-871051, 27-87105\u003c\/li\u003e\n  \u003cli\u003eAlso replaces Mallory 9-61414, GLM 32080, Osco 8503-GO\u003c\/li\u003e\n  \u003cli\u003eSold as a 4-piece pack to service multiple joints or spare parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boat owners, marine mechanics, and DIY enthusiasts needing a dependable, OEM-pattern gasket set for Mercruiser stern drive exhaust elbows will find this AIB2C kit useful. It’s aimed at anyone undertaking routine engine maintenance, repairing exhaust leaks, or replacing worn gaskets without custom machining. Verify part numbers and engine compatibility before installing, and follow your engine manufacturer’s torque and sealant recommendations for best results.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many gaskets come in the pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The AIB2C kit includes four exhaust elbow gaskets—enough to service multiple joints or keep a spare.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this gasket match Mercruiser OEM parts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It matches OEM hole and port patterns and replaces Mercruiser part numbers like 27-818832 and 27-863726.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AIB2C","offers":[{"title":"Default Title","offer_id":48084566409374,"sku":"B08KPWW28G","price":31.37,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/aib2c-exhaust-elbow-gasket-front-packaging.jpg?v=1785859737","url":"https:\/\/northtrailauto.ca\/products\/aib2c-exhaust-elbow-gasket-set-for-mercruiser-4-piece-direct-fit-composite-seal","provider":"North Trail Auto","version":"1.0","type":"link"}