MerCruiser GM 165hp 4.1L 250cid Oil Pump 36405 39163 Screen OMC in-line 6 70-79 Pulley - Water Pump Filled with fresh gear oil

Filled with fresh gear oil

Works on 1972-1986 (THESE WERE THE SAME FOR EVERY OMC STERNDRIVE) 4cyl

The part # is 277555 (housing) - 277565 Starter assembly

OMC Stringer 3

Was used on almost all Sterndrive Alpha and Bravo Boats from 81-96 almost all Horsepower

MerCruiser GM 165hp 4.1L 250cid Oil Pump 36405 39163 Screen OMC in-line 6 70-79 Pulley - Water Pump Filled with fresh gear oilItem Details Removed from a 1974 MerCruiser Alpha One GM 4. 1L 165hp 250CID Used from 1970 1979 MerCruiser Part Numbers: Screen 39163 Oil Pump 36405 Yours should looks just like this. Removed from a running engine. If you are unsure if this will work for you, just ask. Purchase with confidence!