Sierra 18-1142 Upper Pinion Bearing - MW
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Sierra 18-1142 Upper Pinion Bearing
Sierra Marine replacement Upper Pinion Bearing for Mercruiser Stern Drives. This part fits I, R, MR, Alpha One, and Gen II drives with a 1.50 ratio. All Sierra engine parts are manufactured to meet or exceed OEM requirements.
- Fits: I, R, MR, Alpha One & Gen II w/ 1.50 ratio
Interchangeable with:
- GLM
- 21560
- Mercruiser Stern Drive
- 31-32573A1
WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov

