OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives

GLM Marine aftermarket upper gearcase
OMC parts drawing.
Cobra sterndrive gear sets and repair help.

Last updated on 11/18/2023

  • Comprehensive OMC parts photo listing
  • Exploded parts drawing # 1 to # 17
  • Upper gearcase gear set
  • Tapered roller bearings
  • U-joints and yoke
  • Pinion nut
OMC Cobra upper gearcase parts

OMC Cobra upper gearcase parts layout

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OMC Cobra upper gearcase parts, 87654 OMC Cobra upper gearcase

87654 OMC Cobra upper gearcase seal kit

87654 Upper gear case seal kit – replaces 987603

P/N 87654 $48.99 US

P/N 87654
$ 70.89 CDN 

OMC Cobra upper gearcase parts

39630 Transom gasket 508105

39630 Bell housing gasket – OEM 508105

# 39630
$9.95 US

# 39630
$ 6.89 CDN

Cobra upper gearcase

Cobra stern drive M

1
2222-2 Rebuilt upper gearcase

 

$1595.99 us
plus trade in

22520 T OMC Cobra Gears ratio 21-16

# 22520
$745.95
US

# 22520
 $ 1,505.89
CDN

22544

22544 21-17 gear ratio

2B
22544 Gear set (21:17)

# 22544
$723.95
US

# 22544 
$ 840.89
CDN

22560 OMC Cobra gear set

22560 ratio 21-18

2C

22560 Gear set (21:18)

# 22560
$475.99 US

# 22560
 $ 476.89
CDN

OMC Cobra upper gearcase

22540 OMC Cobra Gears V6 ratio 21-19

2D
22540
 Gear set (21:19)

# 22540
$811.99 US

# 22540
 $ 1,506.89
CDN

Cobra upper gearcase, 21542 M Bearing

21540 Bearing

3
21540
 Bearing

# 21540 
$34.95 us

# 21540
 $ 50.89
cdn

Cobra upper gearcase

21541

4
21541
 Bearing

# 21541
$58.95 us

# 21541
 $56.89
cdn

Cobra upper gearcase

28460 Pinion Nut

5
28460
 Pinion nut

$48.95 us

$66.89 cdn

Cobra upper gearcase

28315 Long Yoke

8
28315
 Yoke drive shaft

$103.95
us

$191.89
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Cobra upper gearcase

28030-28040 U joints

9
28030
 Universal joint

$44.95 us

$68.89 cdn

Cobra upper gearcase

28100 T Socket

10
28100
 Socket

$64.95 us

$115.89 cdn

28320 M Water Pump Shaft

$351.99 us

$485.89 cdn

Cobra upper gearcase

21542

14
21542
 Bearing

# 21542
$80.95 us

# 21542 
$52.89
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Cobra upper gearcase

15
22525
 Centering cone

$45.95 us

$63.89 cdn

Cobra upper gearcase

28470 M cobra u joint drive nut

16
28470
 U-joint nut

$24.95 us

$34.89 cdn

Cobra upper gearcase

21543

17
21543
 Bearing

# 21543
$42.95 us

# 21543
 $66.89
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OMC Cobra lower gearcase repairs Click Here