Feature●100% brand-new,all parts are tested and quality controlled prior to shipment●Fits all mercruiser Alpha one, Pre Alpha, Generation 2, Bravo One, Trs outdrives will also fit Mercury / Mariner outboards 150HP an.●The tool set are used to remove and install driveshaft housing (upper) bearing retainer nut●Replaces OE# For Mercury 91-17256, 91-36235； Sierra 18-9803●Package including: 1 X Bearing Retainer Spanner WrenchDescription Fits all mercruiser Alpha one, Pre Alpha, Generation 2, Bravo One, Trs outdrives will also fit Mercury / Mariner outboards 150HP an.
The tool set are used to remove and install driveshaft housing (upper) bearing retainer nut (By U joint shaft) on #1 (1982 and earlier), R, MR, Alpha Gen 1 (1983 -1990), Alpha Generation ll (all), MC1, and all Bravo and Blackhawk units.