Heavy Duty U-Joint | Sierra 18-2104
Heavy Duty U-Joint | Sierra 18-2104
Sierra
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Heavy Duty U-Joint | Sierra 18-2104
Heavy Duty U-Joint | Sierra 18-2104
Replacement heavy duty U-joint with internal retaining clips for various Mercruiser, OMC & stern drives.
- Sierra heavy duty U-joint
- Fits all Mercruiser #1 and Alpha 1 units s/n 1684188 thru B418818
- Also fits Mercruiser TR and TRS and II SSM drives
- Fits OMC Cobra drives from 1986-1989
- Includes both straight and 90 degree grease fittings and retaining clips
- Rockwell
- Replaces Mercruiser 36312, 41431, 58749,75832, 75832A2, 75832T, 758321, 758321T, 75832A1, and 75832A3
- Replaces Chrysler 3780250
- Replaces OMC 915715, 912214, 915716
- Replaces Volvo Penta 897707 and 853255
- Replaces Paragon 12133
- Replaces Mallory 9-72404
- Replaces Sierra 18-2102
! 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.