Part Number: GLM21540
Price: $31.9900
Bearing Tapered Roller Upper Unit for Mercruiser OMC Outdrive 31-35990A1
Tapered Roller Bearing that is used on the driven gear in the Upper unit of many Mercruiser stern drive models(1/R/MC/Alpha one/ and Alpha One Gen11.).

It is Used with all ratios except 1.50, 1.47 and 1.32.

This bearing is also used on the Upper Gearcase driven gear on OMC Cobras from 1986 thru 1993 and Johnson Evinrude.

Replaces O.E.M. # s Merc. 31-35990A1, OMC 983891.


Part Number: GLM21560
Price: $30.9500
Bearing, Roller, Mercruiser R, MR, Alpha One, Gen. II, Upper Gear Heavy Duty 1.5
Roller Bearing for Mercruiser R, MR, Alpha One, Gen. II 1.50, 1.47 ratio heavy duty only