Sierra Marine Parts Catalog: OMC Sterndrive Cobra
Figure
Figure
#
Description
Part #
O.E.M. #
Qty.
#
Description
Part #
O.E.M. #
Qty.
Gearcase 50-75 HP 3 Cyl 1979-2003
32
pinion Nut
911753
1
1
Upper Gear Housing, Basic
33
Nut retainer
911752
1
w/ Inserts
~
984518
1
34
pinion Washer
NSS
911697
1
2
Gearcase Insert
NSS
910935
5
35
pinion Bearing, Lower
983892
1
3
Gearcase Insert
NSS
911779,
36
Bearing Carrier, pinion
911750
1
3852541
5
37
pinion Bearing, Upper
983891
1
4
Gearcase Insert
NSS
910901
5
38
Gear Set, 21:16
5
Gearcase Insert
NSS
911858,
(includes 38 & 45)
983825
Ar
3852567
3
38
Gear Set, 21:18
6
Gearcase Insert
NSS
910901
4
(includes 38 & 45)
983826
Ar
7
Gearcase Insert
NSS
910901
4
38
Gear Set, 21:19
8
Shift rod Guide
NSS
912137
1
(includes 38 & 45)
984012
Ar
9
Gasket, Water passage Cover
18-0884
911733
1
39
retainer ring, pinion Housing
911751
1
10
Water passage Cover
911734
1
40
o-ring, Gear Housing Cover
313175
1
11
Thrust plate, Starboard
NSS
911838,
41
Shim, Gear position, 0.003"
911662
Ar
3852562
1
41
Shim, Gear position, 0.005"
911663
Ar
12
Shim, Thrust plate, 0.015"
911839,
41
Shim, Gear position, 0.007"
911664
Ar
3852563
Ar
41
Shim, Gear position, 0.010"
911665
Ar
13
Thrust plate, port
NSS
911837,
41
Shim, Gear position, 0.012"
911666
Ar
3852561
1
41
Shim, Gear position, 0.015"
911667
Ar
14
retainer ring, Thrust plate
NSS
910953
4
42
Bearing, U-Joint Shaft
983878
1
15
Nut
912920,
43
Nut, Gear to U-Joint
911937
1
3852648
6
44
Centering Cone
912029
1
16
Washer
NSS
911833
6
45
Gear Set, 21:16
17
Gasket, outdrive Mounting
911836,
(includes 38 & 45)
983825
Ar
915840
1
45
Gear Set, 21:18
18
Gasket, Adapter to Gear Housing
911698
1
(includes 38 & 45)
983826
Ar
19
o-ring, Adapter, Large
911700
1
45
Gear Set, 21:19
20
o-ring, Adapter, Small
909316
1
(includes 38 & 45)
984012
Ar
21
Water pump Shaft Seal
911701,
46
Bearing, Bearing Carrier
983877
1
915702,
47
o-ring, Bearing Carrier
911686
1
916058,
48
Shim, Bearing Carrier, 0.003",
3853655
1
Green
911678
Ar
22
Adapter, Water pump to
48
Shim, Bearing Carrier, 0.004",
Gear Housing
18-4836
911699
1
Tan
911679
Ar
23
Screw
908668,
48
Shim, Bearing Carrier, 0.005",
341013
6
Blue
911680
Ar
24
Gasket, plate to Adapter
911702
1
48
Shim, Bearing Carrier, 0.010",
25
plate, Water pump
911703
1
Brown
911681
Ar
26
Impeller
983895,
49
Gear Bearing Carrier
911683
1
777128
1
50
Seal, Bearing Carrier
911685
1
27
Liner, Water pump Cover
911844
1
51
U-Joint & Water pump
28
Seal, Water pump Housing
911704
1
Shaft Assy
983880
1
29
Impeller Housing
984744
1
52
Stub & Water pump Shaft
984264
1
30
Screw
NSS
912238
3
53
U-Joint Assy
912214
2
31
Shim, Bearing Carrier 0.010
911668
Ar
54
Yoke Shaft
912212
1
31
Shim, Bearing Carrier 0.001
911669,
55
o-ring, U-Joint Shaft
911851,
911670,
3852565
2
611671,
56
Gear Housing Cover
911845,
911672,
986363
1
911673,
57
oil Indicator
914488
1
911674,
58
o-ring, oil Indicator
303067
1
911675,
59
Screw, Gear Housing Cover
123018
4
911676,
60
Cover, Water pump Access
983967
1
911677
Ar
61
Screw, Water pump
31
Shim, Bearing Carrier 0.003
911669,
Access Cover
911859,
911670,
3852568
3
611671,
Water pump repair Kit w/housing
984461,
911672,
984744
1
911673,
911674,
911675,
911676,
911677
Ar
791
Ar
As required
NSS Not Sold Seperate