Mercruiser 3 inch Exhaust Elbow | Sierra 18-1971
Mercruiser 3 inch Exhaust Elbow | Sierra 18-1971
Sierra
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Mercruiser 3 inch Exhaust Elbow | Sierra 18-1971
Replacement elbow for many early Mercruiser stern drive marine engines with log style exhaust manifolds.
- Sierra exhaust elbow
- For 3 in. ID hose
- 3 in. x 2 3/4 in. mounting pattern
- For Mercruiser 140 GM 181 CID engines from 1968-1982
- For Mercruiser 165 GM 250 CID engines from 1970-1981
- For Mercruiser 200 GM 292 CID engines from 1969
- For Mercruiser 198, 228 GM 305 CID engines from 1977-1980
- For Mercruiser 215, 225 Ford 302 CID engines from 1973-1974
- For Mercruiser 233, 255 Ford 351 CID engines from 1973-1977
- For Mercruiser 250,260 GM 350 CID engines from 1977-1982
- For Mercruiser 888 Ford 302 CID engines from 1971-1977
- For Mercruiser 898 GM 305 CID engines from 1977-1982
- For Mercruiser 470 224 CID engines from 1976-1979
- For use with Sierra 18-1960-1, 18-1958-1, and 18-1950-1 manifolds
- Riser gasket P/N 18-2833 – sold separately
- Mounting kit P/N 18-4362 – sold separately
- Replaces Mercruiser 76351A1, 76351A2, 76351A04, 60426A1, 49964A1, and 49964A2
- Replaces Osco 6351
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.