Mercruiser outdrive parts drawing *Videos *SEI sterndrive

OEM parts *Mercruiser tapered roller bearings

GLM Marine aftermarket timkin tapered for the upper gearcase #21510 #21511 Tapered bearings are used for the drive shaft housing (upper cover) #21540 #21550 #21560 Roller are used for the driven gear #21520 Tech support drawings click here Bearing assembly set is used for the drive gear and includes all ratios except 1.32

21510 1.15 16 Driven gear top	P/N 21510 Tapered (1-15/16 O.D.) OEM 31-61100A1 $33.99
21511 1.25 32 Driven gear top	P/N 21511 Tapered (1-25/32 O.D.) OEM 31-32575T1 $12.99
21520 OEM set	P/N 21520 Drive gear bearing assembly (Includes all ratios except 1.32) 31-35988A12 $179.99
21540 driven 1.65 1.84 1.94 gear ratio	P/N 21540 Tapered bearing (1.65, 1.84, 1.98 ratio) 31-35990A1 $35.99
21550 driven 1.32 ratio	P/N 21550 Tapered (1.32 ratio) 31-66818A1 $75.95
21560 Roller bearing 31-32573A1	P/N 21560 Tapered (1.50 ratio) 31-32573A1 $47.99
Bearing puller or installer tools click here Contact our service tech for what type of upper driven bearing you have in the upper gearcase or measure the outside. There is 2 to chose from and use a 1 - 3 inch slide hammer puller to take bearing out of upper lid or top for help troubleshooting your upper gearcase or any Mercruiser parts or in this case tools call for tech service at (416) 751-7326

T.C. Electronics/Marine (416) 751-7326 Copyright 2002 to 2023 all rights reserved