
Aftermarket Mercury 31-35990A1 & Johnson 983891 Tapered Roller Bearing
Aftermarket Mercruiser 31-61100A1 Tapered Roller Bearing
Fits: MC-I, R, MR, Alpha One, SS and Gen ll (0F679999 and Below)
Interchangeable with the following:
GLM
21510
Mercruiser Stern Drive
31-61100A1