Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos

T.C. Electronics / Marine ( 416 ) 751-7326 home page

Mercruiser Alpha 1 outdrive bearings *tapered roller

Timkin tapered roller type for drive shaft housing with photos and links

  • Photos of each unit
  • GLM part numbers
  • OEM numbers
  • Alpha One outdrive exploded drawing links to individual tapered roller bearing
  • See our upper gearcase drawing page for all other drive shaft housing parts and components

Exploded view Mercruiser drawings
Search by part number or description here

21510 bearing cover 1 15-16
21510 cover 1-15/16

P/N 21510 Upper cover tapered roller bearing assembly O.D. 1-15/16 inch 31-61100A1 $28.95

21511 1 / 25-32
21511 1-25/32

P/N 21511 Upper cover assembly (O.D. 1-25/32") OEM 31-32575T1 $17.09

 

P/N 21560 Tapered roller assembly (1.50 ratio) for the driven gear (lower drive shaft) 31-32573A1 $31.89

21540
21540

P/N 21540 Tapered roller assembly (1.65/1.84/1.98 ratio) for the driven gear (lower drive shaft) 31-35990A1 $34.09

21520 assembly set
21520 assembly set

P/N 21520 Tapered roller bearing set with all ratios (except 1.32 ratio) OEM 31-35988A12 $131.29