{"product_id":"upper-exhaust-tube-bellows-fits-mercruiser-v6-v8-replaces-32-44348001-32-44348t","title":"Upper Exhaust Tube Bellows – Fits MerCruiser V6 \u0026 V8 (Replaces 32-44348001, 32-44348T)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eOur Upper Exhaust Tube Bellows provides a reliable seal for the exhaust system on MerCruiser V6 \u0026amp; V8 engines, including 4.3L, 5.0L, 5.7L, and 7.4L models manufactured between 1987 and 1998. It is specifically designed for late-model engines with center-mounted risers.\u003c\/p\u003e\n\u003cp\u003eThis part serves as a direct interchange for MerCruiser part numbers 32-44348001 and 32-44348T. It also cross-references with aftermarket equivalents including Sierra 18-2748, GLM 89120, and Mallory 9072805.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for simple and secure clamp-on installation.\u003c\/li\u003e\n\u003cli\u003eConnects the exhaust elbow to the exhaust tube.\u003c\/li\u003e\n\u003cli\u003eIncludes two stainless steel hose clamps for a complete replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\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;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\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\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\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e32-44348001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e32-44348T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-2748\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e89120\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9072805\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis bellows fits a range of MerCruiser engines. Please verify compatibility using your engine's model and serial number range provided in the \"Notes\" column.\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\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eV6 \u0026amp; V8\u003c\/td\u003e\n        \u003ctd\u003e4.3L, 5.0L, 5.7L, 7.4L\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987–1998\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003eLate model with center mounted risers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e260 GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B525982 THRU 0B773304\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e230 4 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B525982 THRU 0B773739\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e200 2 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B525982 THRU 0B774444\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e350 MAG. ALPHA GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987–1995\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B525982 THRU 0F600999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1988–1995\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B525982 THRU 0F600999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e7.4L BRAVO GM 454\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1988–1991\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B771113 THRU 0D603117\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0LX 4 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1988–1995\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B773740 THRU 0F600999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0L 2 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1988–1995\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0B774445 THRU 0F600999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e350 MAG (SKI) GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1991–1996\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D505450 THRU 0K040399\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eD4.2L\/220 IDI VM 254\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1994–1998\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D554732 THRU 0M999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e7.4L BRAVO GEN. V GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1992–1996\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D603118 THRU 0F800699\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3L (GEN II) 2 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1992–1993\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D714107 THRU 0F000877\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3LX GEN II 4 BBL. GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1992–1993\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D714370 THRU 0F001219\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e454 MAG. BRAVO GEN. V GM\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1992–1993\u003c\/td\u003e\n        \u003ctd\u003e32-44348001, 32-44348T\u003c\/td\u003e\n        \u003ctd\u003e0D805069 THRU 0F304999\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eUpper Exhaust Tube Bellows\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eClamp-On\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eExhaust Elbow to Tube\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eRubber\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e4\" Inside Diameter\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eStainless Steel Hose Clamps\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year (Varies by Manufacturer)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Upper Exhaust Bellows (Replaces 32-44348001\/32-44348T)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Stainless Steel Hose Clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the engine is off and has cooled completely.\u003c\/li\u003e\n\u003cli\u003eLocate and access the existing upper exhaust bellows.\u003c\/li\u003e\n\u003cli\u003eLoosen and remove the hose clamps securing the old bellows.\u003c\/li\u003e\n\u003cli\u003eCarefully detach the old bellows from the exhaust elbow and tube. Note its orientation.\u003c\/li\u003e\n\u003cli\u003eClean the connection surfaces on the elbow and tube, removing any old sealant or debris.\u003c\/li\u003e\n\u003cli\u003ePosition the new bellows, ensuring it is properly seated on both ends.\u003c\/li\u003e\n\u003cli\u003eSecure the new bellows using the provided stainless steel hose clamps.\u003c\/li\u003e\n\u003cli\u003eTighten the clamps firmly but do not overtighten, which could damage the rubber.\u003c\/li\u003e\n\u003cli\u003eAfter installation, run the engine and inspect for any exhaust or water leaks around the new bellows.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this bellows will fit my specific MerCruiser engine?\u003c\/summary\u003e\n  \u003cp\u003eThe most reliable way to confirm fitment is by checking your engine's model and serial number against the ranges listed in our Engine \u0026amp; Model Compatibility table. While it fits most V6 and V8 models from 1987–1998, serial number breaks are the definitive guide.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the common signs of a failing exhaust bellows?\u003c\/summary\u003e\n  \u003cp\u003eSigns of a worn or failed exhaust bellows include water leaking into the bilge area, noticeable exhaust fumes in the engine compartment, a change in engine exhaust sound, or the engine overheating. Visual inspection may reveal cracks, splits, or perishing of the rubber.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace the exhaust bellows?\u003c\/summary\u003e\n  \u003cp\u003eThere is no fixed service interval, but it is a critical wear item. We recommend inspecting the bellows annually for any signs of cracking, brittleness, or fatigue. For preventative maintenance, consider replacement every 3-5 years, especially for boats used in saltwater.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I reuse my old hose clamps?\u003c\/summary\u003e\n  \u003cp\u003eIt is strongly recommended to use new clamps. The original clamps may have lost tension or suffered from corrosion. For a secure, leak-free seal, always use the new stainless steel hose clamps included in the kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs any sealant required for installation?\u003c\/summary\u003e\n  \u003cp\u003eGenerally, no sealant is required if the connection surfaces are clean and the bellows is installed correctly. The clamps provide the necessary sealing pressure. However, some mechanics apply a thin layer of marine-grade adhesive or sealant as a precaution.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\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\u003eShipping speed \u0026amp; cost\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\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify images\/specifications vs 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\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717906043195,"sku":"17B1002(return1)","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17B1002_return1.png?v=1762947150","url":"https:\/\/seasierra.com\/products\/upper-exhaust-tube-bellows-fits-mercruiser-v6-v8-replaces-32-44348001-32-44348t","provider":"SeaSierra","version":"1.0","type":"link"}