OMC parts 800 / Cobra outdrive drawings * How to videos

T.C. Electronics/Marine (416) 751-7326 Home Page

OMC Cobra lower gear case

Lower unit years 1986-1993

  • New stern drive for years 1986 - 1993 (V6 and V8) and 1990 - 1993 (4 cylinder 3.0L) manufactured by GLM Marine. 2 year manufacturer warranty
  • For rebuilt lower gear cases, see our rebuilt lower unit page
  • Gear case (#28820) includes new 2009 re-designed heavy duty gears number 22666 capable of operating with motors up to 300 hp. 5.8 liter V8 engines.
  • Large prop shaft diameter (1 - 1/4") with gear ratio: 14:26
  • Complete OMC upper gearcases and individual gears and clutch dogs area also available

Exploded View Drawings

OMC stern drive cobra lower gear case
OMC stern drive cobra lower gear case
22666 gear set
22666 gear set

#28820 - Large Gear Housing

Year

3.0L 4-cylinder Chevy
1990 - 1993
4.3L V6
1986 - 1993
5.0L Chevy/Ford
1986 - 1993
5.7L Chevy
1986 - 1993
5.8L Chevy
1989 - 1993

P/N 28820 Complete lower large gear housing assembly with heavy duty gears $1999.00 *after trade in. $360 core charge is refunded off purchase price after we receive your core trade in.