Page 357 - 2021 Sierra Catalog

Figure
# Description
Gearcase 50-75 HP 3
1 Housing, Gearcase
2
3
4
5
6
7
8
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
37
38
39
40
41
42
43
44
45
46
Trim Tab
Washer, Anode
Bolt, Anode Retaining
Washer
Bolt
Washer
Bolt
O-Ring
Drain Plug, Upper
Seal
Retaining Screw
O-Ring Screw
Screw, Shift Lever
Gasket, Drain Plug
Drain Fill Plug, Lower
Screen, Water Intake
Bolt, Inlet Screen Retainer
Cradle, Shifter
Lever, Shift
Connector, Shift Rod
Pin, Connector
Cotter Pin
O-Ring, Shift Rod Cover
Cover, Shift Rod
Bolt, Shift Rod Cover
O-Ring, Shift Rod
Bushing, Shift Rod
Shift Rod (std.)
Shift Rod (long)
Nut, Prop
Pin, Cotter
Spacer, Prop
Washer, Prop Thrust
Anode, Bearing Housing
Bolt, Anode Retaining
Oil Seals, Prop Shaft
Bearing, Needle
Bearing Carrier Assembly
Tabs, Retaining
Bolt, Carrier Retaining
O-Ring, Bearing Housing
Bearing, Needle
Thrust Washer, Reverse Gear
Thrust Bearing, Reverse Gear
Gear, Reverse
Part # O.E.M. # Qty.
Cyl 1979-2003
— 435275 1
—
—
—
—
—
—
—
18-4253-9
18-1236
18-7475
—
18-7109
—
18-4248
18-2378
—
—
—
—
—
—
—
—
—
—
18-7137
—
—
—
18-3705
18-3742
18-4228
18-4230
—
—
18-2060
18-1355
18-1708
18-1343
—
18-7172
18-1354
18-0196
18-1363
18-2309
340539
330266
330930
330265
313697
330266
305282
336982
309243
332584
324852
317178
333770
311598
318544
332494
325539
332507
332492
332508
302504
306376
338522
434588
316037
318372
333780
332509
332510
314503
314502
315810
320305
398873
328694
321467
386765
432276
332495
328744
553126
386764
332514
397537
332489
1
1
1
1
1
4
4
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
1
2
2
1
1
1
1
1
Figure #
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
Description
Spring Clutch
Clutch Sliding
Pin, Clutch Cross
Spring Shifter
Gear Set, Forward & Pinion
Thrust Bearing, Forward Gear
Thrust Washer, Forward Gear
Bearing Forward, Outer
Thrust Bearing, Forward Gear
Propeller Shaft
Shaft, Shift Dog
Ball, Detent
Nut, Pinion
Gear Set, Forward & Pinion
Bearing Pinion
Driveshaft (std)
Driveshaft (long)
Washer, Thrust
Thrust Bearing, Driveshaft
Shim (.003)
Shim (.004)
Shim (.005)
Shim (.006)
Shim (.007)
O-Ring, Gear Housing
Cap, Upper Driveshaft, Retaining
Bolt, Driveshaft Retaining
Seal Lower
Seal Upper
Gasket, Impeller
Plate, Impeller
Key, Impeller
Impeller
Skirting, Insert
Plate, Insert Top
Seal, Rubber
Housing, W/P
Bolt, Water Pump Housing
Gear Housing Seal Kit
Water Pump Repair Kit
Part #
18-2398
18-2308
—
—
18-2310
18-1364
18-0197
18-1351
18-1369
18-2288
—
18-2243
—
18-2310
18-1356
—
18-1721
18-0201
18-1368
—
—
—
—
—
18-7173
—
—
18-2059
18-2064
18-2709
NSS
18-3138
18-3104-1
NSS
18-3126
18-7481
18-3129
18-3369
18-2694
18-3394
O.E.M. #
320311
332491
320310
332484
397627
397538
333725
382407
432264
439138
332503
316506
313339
397627
382343
433066
433067
333771
398901
313273
313274
313275
313276
313277
310327
435274
317624
321466
332205
336530
341038
334897
432941
324980
321940
324981
438544
302325
433550
433548
Qty.
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
2
1
AR
AR
AR
AR
AR
1
1
3
1
1
1
1
1
1
1
1
1
1
4
1
1
AR As required NSS Not Sold Seperate
339
OUTBOARD — JOHNSON/EVINRUDE (OMC/BRP) - Gearcase 40/48/50 HP 1989-2003