Aftermarket Mercruiser 31-35990A1 & OMC 983891 Tapered Roller Bearing
The Sierra 18-1165 Tapered Roller Bearing supports the applicable rotating shaft or gear assembly during operation in Mercruiser applications. It replaces Mercruiser 31-61100A1.
Fits: MC-I, R, MR, Alpha One, SS and Gen ll (0F679999 and Below)
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-1165?
Sierra 18-1165 is an aftermarket tapered roller bearing for Mercruiser applications.
Which part numbers cross-reference Sierra 18-1165?
This listing cross-references GLM 21510 and Mercruiser 31-61100A1. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-1165 fits my Mercruiser application?
Contact us with your engine model and serial number and we'll help check suitability.