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 Wrench.
