Page 573 - 2021 Sierra Catalog

Figure
# Description Part # Gearcase 50-75 HP 3 Cyl
1 Housing, Gearcase —
2
3
4
4a
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Trim Tab
Bolt, Trim Tab
Cover, Water Inlet (port)
Cover, Water Inlet (stbd)
Nut, Nylock
Bolt, Water Inlet
Plug, Drain & Vent
Gasket, Plug
Bolt, Gearcase Mounting
Washer, Gearcase Mounting
Shim Forward Gear (0.5mm)
Shim Forward Gear (0.8mm)
Shim Forward Gear (0.12mm)
Shim Forward Gear (0.30mm)
Shim Forward Gear (0.50mm)
Bearing, Forward Gear
Gear, Forward
Clutch, Dog
Pin, Clutch Dog
Ring, Cross Pin
Plunger, Shift
Slide, Shift
Spring, Compression
Shaft, Propeller
Thrust, Washer, Prop Shaft
Gear, Reverse
Shim Reverse Gear (0.5mm)
Shim Reverse Gear (0.8mm)
Shim Reverse Gear (0.12mm)
Shim Reverse Gear (0.30mm)
Shim Reverse Gear (0.50mm)
Washer Thrust
O-Ring, Bearing Carrier
Bearing, Reverse Gear
Bearing, Carrier
Key, Bearing Carrier
Bearing, Prop Shaft
Seal, Prop Shaft
Tab Washer
Nut, Cover
Prop Spacer (fore)
Prop Spacer (aft)
Washer, Prop Mounting
Nut, Propeller
18-6096A, 18-6113
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—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
18-0554
—
—
—
—
—
—
O.E.M. #
1979-2003
689-45311-04-EK3
664-45371-01-00
90105-08M02-00
689-45214-01-01
689-45215-01-00
90185-05904-00
98680-05525-00
90340-08M04-00
90430-08020-00
90105-10059-00
92990-10600-00
664-45567-00-05
664-45567-00-08
664-45567-01-12
664-45567-01-30
664-45567-01-50
93332-00005-00
689-45560-00-00
664-45631-01-00
90250-05010-00
648-45633-00-00
648-45635-00-00
648-45634-00-00
90501-10065-00
689-45611-00-00
90201-20417-00
689-45571-00-00
664-45577-00-05
664-45577-00-08
664-45577-01-12
664-45577-01-30
664-45577-01-50
664-45576-00-00
93210-30MA3-00
93306-00612-00
689-45331-01-94
90282-04010-00
93315-22004-00
93101-20M07-00
90214-45M02-00
664-45384-00-00
664-45987-01-00
689-45997-00-00
92990-14200-00
90171-14013-00
Qty.
1
1
1
1
1
1
1
3
3
2
4
AR
AR
AR
AR
AR
1
1
1
1
1
1
1
1
1
1
1
AR
AR
AR
AR
AR
1
1
1
1
1
1
2
1
1
1
1
1
1
Figure #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
69
70
71
72
73
74
Description
Cotter Pin
Pin, Dowel
Nut, Pinion
Gear, Pinion
Bearing, Thrust
Bearing, Pinion
Sleeve, Drive Shaft
Shim Pinion Gear (0.5mm)
Shim Pinion Gear (0.8mm)
Shim Pinion Gear (0.12mm)
Shim Pinion Gear (0.30mm)
Shim Pinion Gear (0.50mm)
Bearing, Drive Shaft
Drive Shaft (long)
Key, Impeller
Oil Seal, Pump Base
Gasket, Base
Base, Water Pump
Gasket, Base
Impeller Plate
Gasket, Impeller Plate
Impeller
Insert Cup
Damper, Water Seal
Housing, Water Pump
Bolt, Pump Housing
Washer, Housing (short shaft)
Seal, Lower Water Tube
Water Tube (long shaft)
Seal, Upper Water Tube
Extension, Housing (long shaft)
Bolt, Extension (long shaft)
Washer, Bolt (long shaft)
Extension Tube (long shaft)
O-Ring, Extension Tube
Plate (long shaft)
Shift Cam Assembly (short shaft) —
Shift Cam Assembly (long shaft)
Boot, Shift Rod
Bracket, Shift Shaft
Screw, Bracket
Gear Housing Seal Kit
Water Pump Repair Kit
Part #
18-2380
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—
—
—
—
—
—
—
—
—
—
—
—
—
18-0296
18-0773
—
18-0773
—
—
18-3067
18-3439
—
—
—
—
—
—
18-0552
—
—
—
—
—
—
—
—
—
—
18-2785
18-3427
O.E.M. #
91490-30030-00
93606-12019-00
90179-09M02-00
689-45551-00-00
664-45552-09-00
93315-017U4-00
689-45536-00-00
664-45587-00-05
664-45587-00-08
664-45587-01-12
664-45587-01-30
664-45587-01-50
93332-000U4-00
689-45501-10-00
664-44338-00-00
93101-22067-00
689-44316-A0-00
689-44325-02-5B
689-44316-A0-00
689-44323-03-00
689-44324-A0-00
689-44352-02-00
689-W4432-02-00
689-44367-01-00
689-44311-03-00
90101-06M56-00
90209-06M04-00
626-44365-01-00
689-44361-10-00
689-44366-00-00
689-44312-00-5B
97080-06035-00
92990-06600-00
689-44362-00-94
93210-26240-00
689-44328-03-00
664-44150-01-00
664-44150-11-00
664-44147-00-00
689-44176-01-00
97780-50610-00
689-W0001-22-00
689-W0078-A6-00
Qty.
2
2
1
1
1
1
AR
AR
AR
AR
AR
1
1
1
2
1
1
1
1
1
1
1
1
1
3
3
1
1
1
1
3
3
1
2
1
1
1
1
1
1
1
1
AR As required
555
OUTBOARD — YAMAHA - Gearcase 25 HP (1986-87) C25 HP (1990-91) C30 HP (1989-91)