Sierra Marine 18-2381 Upper Drive Unit Cap
Sierra 18-2381 Top Cap For Upper Drive Unit Mercruiser MR/Alpha-1, replaces Mercruiser Upper Drive Unit Cap # 94998A2, 94998A4. Fits Mercruiser Upper Drive Unit serial number 6225577 & later MR/Alpha 1. Comes with bearing and shims. Note: Will not fit Alpha one Gen-II Drives.
| Brand | Sierra |
|---|---|
| Cross Reference / Specs | 94998A3 94998A1 94998A2 94998A4
|
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