OMC 800/Cobra parts *Outdrive drawings *How to videos

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OMC Cobra bearings (Upper gearcase)

Bearings for sterndrives upper gearcase

  • OMC bearings sold as sets with outside race and inside cone
  • Driven gear and front carrier
  • Timken is the OEM MFG of the tapered list bellow
  • Outdrive years 1986-1987-1988-1989-1990-1991-1992-1993
  • Note Timken bearings require a per load pressure of 36 to 48 inch pounds with out oil seal installed. 2 seal with a small amount of oil added would add about 24 to 36 inch pounds. This works out to 5 to 8 foot pounds total for Cobra drive shaft
  • Cobra bearing shimming videos
  • Require plastic or metal shims
  • Exploded view OMC drawings

Bearings for upper gear case

27920
27920
P/N 27920 OEM 911683 Front carrier
21542 Bearing
21542 Bearing
P/N 21543 OEM 983878 Rear Years 1986 to 1993
21540
21540
P/N 21540 OEM 983891 Upper driven bearing years 1986 to 1993
21541
21541
P/N 21541 OEM 983892 Lower driven gear bearing
21543
21543
P/N 21543 OEM 983878 Bearing years: 1986-1987-1988-1989-1990-1991-1992-1993