• OMC Cobra upper gearcase parts drawing 18-32

GLM Marine aftermarket OMC parts drawing. Cobra impeller water pump and impeller for outdrive repair.

Updated April 11th 2026

• Comprehensive OMC photo parts list
• Exploded Cobra parts drawing 18 to 32

• Upper gear case water pump and impeller
• Seal kit and gaskets
• Washer and retainer

OMC Cobra upper gearcase parts layout

# 33 to # 54

Click on Picture

Description

Payment for shipping in USA

Payment for shipping in Canada

87654 OMC Cobra upper gearcase seal kit

87654

Upper gear case seal kit

Replaces 987603

P/N 87654
$74.99 US

P/N 87654
$ 102.99 CDN 

39630 Transom gasket 508105

39630

Bell housing gasket

OEM 508105

# 39630
$9.95 US

# 39630
$ 13.99 CDN

12092 Water pump kit

12092 OMC Cobra water pump impeller, housing and gaskets

$49.00 us

$ 69.99 cdn

34771 Gasket OEM 911698

18 34771 included in 87654

$4.89 cdn

82430 O ring OEM 911700

19
82430 included in 87654

34770 Gasket OEM 911702

22
34770 Gasket included in water pump and 87654 

12760 Wear plate OEM 911703

23
12760

Wear plate

included in water pump

Impeller

24
89950

Impeller

$14.95 us

$ 25.89 cdn

12391 Water pump liner OEM 911844

25
12391

Water pump liner

Included in water pump kit

86630 Water pump seal OEM 911704

26
86630

Seal

Included in seal kit and Cobra water pump

34720 Mounting gasket OEM 915840

27
34720

Gasket

Included in 39630 kit

33910 Water cover gasket OEM 911733

28
33910

Gasket

Included in 87654 seal kit

81100 Dip stick gasket OEM 303067

29
81100

O-ring

Note in seal kit

pump housing

30
12405

Pump housing

Included in water pump kit

$24.00 us

21676 Washer

31
21676

Washer

$ 4.95 us

$ 4.89 cdn

23202 Retainer

32
23202

Retainer

$ 19.95us

$ 17.89 cdn

1 to 17

# 33 to # 54

OMC Cobra lower gearcase repairs Click Here