Sierra Marine Parts Catalog
<< Previous of 1025 Next >>791
I/O—OMCSTERNDRIVE/COBRA-UpperGearHousing
Gearcase 50-75 HP
3 Cyl
1979-2003
Figure
#
Description
Part #
O.E.M. #
Qty.
Figure
#
Description
Part #
O.E.M. #
Qty.
1
Upper Gear Housing, Basic
w/ Inserts
~
984518
1
2
Gearcase Insert
NSS
910935
5
3
Gearcase Insert
NSS
911779,
3852541
5
4
Gearcase Insert
NSS
910901
5
5
Gearcase Insert
NSS
911858,
3852567
3
6
Gearcase Insert
NSS
910901
4
7
Gearcase Insert
NSS
910901
4
8
Shift Rod Guide
NSS
912137
1
9
Gasket, Water Passage Cover
18-0884
911733
1
10
Water Passage Cover
911734
1
11
Thrust Plate, Starboard
NSS
911838,
3852562
1
12
Shim, Thrust Plate, 0.015"
911839,
3852563
AR
13
Thrust Plate, Port
NSS
911837,
3852561
1
14
Retainer Ring, Thrust Plate
NSS
910953
4
15
Nut
912920,
3852648
6
16
Washer
NSS
911833
6
17
Gasket, Outdrive Mounting
911836,
915840
1
18
Gasket, Adapter to Gear Housing
911698
1
19
O-Ring, Adapter, Large
911700
1
20
O-Ring, Adapter, Small
909316
1
21
Water Pump Shaft Seal
911701,
915702,
916058,
3853655
1
22
Adapter, Water Pump to
Gear Housing
18-4836
911699
1
23
Screw
908668,
341013
6
24
Gasket, Plate to Adapter
911702
1
25
Plate, Water Pump
911703
1
26
Impeller
983895,
777128
1
27
Liner, Water Pump Cover
911844
1
28
Seal, Water Pump Housing
911704
1
29
Impeller Housing
984744
1
30
Screw
NSS
912238
3
31
Shim, Bearing Carrier 0.010
911668
AR
31
Shim, Bearing Carrier 0.001
911669,
911670,
611671,
911672,
911673,
911674,
911675,
911676,
911677
AR
31
Shim, Bearing Carrier 0.003
911669,
911670,
611671,
911672,
911673,
911674,
911675,
911676,
911677
AR
32
Pinion Nut
911753
1
33
Nut Retainer
911752
1
34
Pinion Washer
NSS
911697
1
35
Pinion Bearing, Lower
983892
1
36
Bearing Carrier, Pinion
911750
1
37
Pinion Bearing, Upper
983891
1
38
Gear Set, 21:16
(includes 38 & 45)
983825
AR
38
Gear Set, 21:18
(includes 38 & 45)
983826
AR
38
Gear Set, 21:19
(includes 38 & 45)
984012
AR
39
Retainer Ring, Pinion Housing
911751
1
40
O-Ring, Gear Housing Cover
313175
1
41
Shim, Gear Position, 0.003"
911662
AR
41
Shim, Gear Position, 0.005"
911663
AR
41
Shim, Gear Position, 0.007"
911664
AR
41
Shim, Gear Position, 0.010"
911665
AR
41
Shim, Gear Position, 0.012"
911666
AR
41
Shim, Gear Position, 0.015"
911667
AR
42
Bearing, U-Joint Shaft
983878
1
43
Nut, Gear to U-Joint
911937
1
44
Centering Cone
912029
1
45
Gear Set, 21:16
(includes 38 & 45)
983825
AR
45
Gear Set, 21:18
(includes 38 & 45)
983826
AR
45
Gear Set, 21:19
(includes 38 & 45)
984012
AR
46
Bearing, Bearing Carrier
983877
1
47
O-Ring, Bearing Carrier
911686
1
48
Shim, Bearing Carrier, 0.003",
Green
911678
AR
48
Shim, Bearing Carrier, 0.004",
Tan
911679
AR
48
Shim, Bearing Carrier, 0.005",
Blue
911680
AR
48
Shim, Bearing Carrier, 0.010",
Brown
911681
AR
49
Gear Bearing Carrier
18-4838
911683
1
50
Seal, Bearing Carrier
911685
1
51
U-Joint & Water Pump
Shaft Assy
983880
1
52
Stub & Water Pump Shaft
984264
1
53
U-Joint Assy
912214
2
54
Yoke Shaft
912212
1
55
O-Ring, U-Joint Shaft
911851,
3852565
2
56
Gear Housing Cover
18-4838
911845,
986363
1
57
Oil Indicator
914488
1
58
O-Ring, Oil Indicator
303067
1
59
Screw, Gear Housing Cover
123018
4
60
Cover, Water Pump Access
983967
1
61
Screw, Water Pump
Access Cover
911859,
3852568
3
Water Pump Repair Kit w/housing
984461,
984744
1
AR
As required
NSS
Not Sold Seperate