Drive Shaft Housing Bearings

Replaces: 45-55796

Replaces: 35915

Replaces: 73020A14, 818763A10

For: #1R/MR/Alpha I

For: Housings with casting #73020C

Replaces: 45-557961

For: Gen II (S/N F680000 & UP).

Mercruiser Vazer

Replaces: 45-41939A1, 45-41939F1

For all #1 units S/N 2791957 & above except MR/ALPHA Units or units which have been retro-litted with MR/ALPHA lower units. Also for 165 (6 cyl.) S/N 2763442 & above.

Replaces: 45-42634

For all MR/ALPHA Units & older units which have been retro-fitted whith MR/ALPHA lower units.

Replaces: 45-816472, 45-816919 

All Alpha I Generation II Drives (with new style 18-3056 Impeller) Serial #D494569 & above.

Replaes: 681001

For: MR/ ALPHA

Replaces: 31-35990A1

Roller Bearing (1.62, 1.81, 1.94, 2.00, 2.40 Ratio)

Replaces: 31-32573A1

Replaces: 15-32563A1

Shim (For 21511 Bearing)

Replaces:

Mercruiser: 25-35027; OMC/Johnson/Evinrude: 303360