OMC Parts / OMC Cobra Stern Drive Tech Drawings

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

MM-OMC-stern-drive-cobra-lower-gear-case.jpg
# 28820 OMC Cobra lower gear case
MM-22666-gear-set.jpg
# 22666 heavy duty gear set (included in # 28820 lower unit)

#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

#28820 Complete lower large gear housing assembly with heavy duty gears $1795.79 *after trade in*

$360 core charge is refunded off purchase price after we receive your core trade in.

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