MerCruiser 73020-C1 73020A20 MR Alpha One Gen I Lower Unit Bearing Carrier 85-90 Engine Mounts 1955 1956 1957 1958 1959

1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966

OMC Exhaust Boot 910168 (1x)

For #1 drives s/n 3469428 and up Except

Pretty sure 45892A2 or 35865A2 and either of which should be interchangeable

May be home built not sure

MerCruiser 73020-C1 73020A20 MR Alpha One Gen I Lower Unit Bearing Carrier 85-90 Engine Mounts 1955 1956 1957 1958 1959Item Details MerCruiser Sterndrive Alpha One Lower Unit Bearing Carrier 73020A20 (Stamped 73020 C1) Used primarily in MerCruiser MR & Gen I (1985 1990) However, You just need to inspect the casting number to see if the one you are replacing is the right one. This type was the later type used mostly newer stuff using tab washer 14 18323 on Gen I & Gen II Standard Rotation lower units. This should only be used to replace a bearing carrier 73020 C1. It