MerCruiser Alpha One 6cyl 4.1L 165hp GM 250ci Rocker Cover Valve Head 65636 I6 Complete Upper & Lower Gearcases (NOT METAL)

(NOT METAL)

1973 1974 1975 1976 1977

This one has casting number 818763C1 (818763-C3 is another common stamping) The other type of bearing carrier MerCruiser used (On Alpha One Gen I & MR lower units) had casting number 73020-C which is NOT the same as this one as it doesn't have the spot for a Locating Key for the bearing carrier

Flywheel: 2498A5

If you need any help tracking down the proper mounting gaskets for this

MerCruiser Alpha One 6cyl 4.1L 165hp GM 250ci Rocker Cover Valve Head 65636 I6 Complete Upper & Lower Gearcases (NOT METAL)Item Details Removed from GM 165hp 250cid 4. 1L 6cyl various applications 1972 1978 Part number 65636 (Used with Serial numbers 3464448 & ABOVE)<<Your serial number should be on a metal plate near the rear of the block Also note that this one has the vent on it that connects to a hose via the flame arrestor Original paint Aluminum construction Yours should looks just like this. Freshwater Used Part. Purchase with confidence! 1972 1973 1974 1975 1976