Page 465 - 2021 Sierra Catalog

Figure
# Description
Gearcase 50-75 HP 3
1 Gear Housing
2
3
4
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
37
38
39
40
41
42 & 43
44
45
46 & 47
48
Screw
Washer
Insulator
Water Pump Housing
Impeller
Impeller Key
Gasket
Face Plate
Gasket
Screw
Washer
Pump Base
Seal
Seal
Gasket
Carrier w/Bearing
Tube, Oiler
Sleeve
Ring
Drive Shaft
Shim Assembly
Race (sold with #24)
Bearing (sold with #23)
Pinion Gear
Pinion Nut
Seal
Bushing Assembly
Screw
O-Ring
E-Ring
Shift Shaft
Drain Screw Gasket
Plug
Drain Screw
Plug
Trim Tab
Bolt, Anode Mounting
Washer, Anode Mounting
Shim Cam
Shim Assembly
Bearing & Race
Roller Bearing
Forward Gear
Cam Follower Assembly
Ball Bearing
Part # O.E.M. #
Cyl 1979-2003
— 1667-9011A73
—
18-4275
18-0568
18-3572
18-3056
18-3293
18-2566
18-3122
18-2564-1
—
18-4275
—
18-0583
18-0522
18-2565
—
—
—
—
—
—
18-1118
18-1118
—
18-3719
18-2054
—
—
18-7198
18-4295
—
18-2945
—
18-2244
18-2375
18-6011
18-6245
18-4858-9
—
—
18-1156
18-1157
—
—
—
10-8248327
12-29245
23-43045
817275A2
47-430262
28-43037
27-817277
817276
27-430331
10-824832-6
12-29245
43055A4
26-43035
26-43036
27-430472
43040A1
43046
42461A1
42461A1
45-43031A1
15-44492A1
31-42677A1
31-42677A1
43-44484
11-35921
26-8164641
23-43052A4
10-824832-6
25-45710
53-29641
43048A1
12-19183
10-28653
10-79953
22-67892A1
31640A1
10-15942
12-45176
76039
15-44491A1
13-30894A1
31-30895
43-12634A2
12239A1
30-44530
Qty.
1
4
4
4
1
1
1
1
1
1
6
6
1
1
1
1
1
1
1
1
1
AR
1
1
1
1
1
1
2
1
1
1
3
1
1
1
1
1
1
1
AR
1
1
1
1
3
Figure #
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
Spring
Clutch
Spring
Description
Cross Pin
Prop Shaft
Reverse Gear
O-Ring
Thrust Bearing
Thrust Washer
Roller Bearing
Bearing Carrier
Washer
Nut
Roller Bearing
Seal
Seal
Thrust Washer
Tab Washer
Prop Nut
Part #
—
18-2236
18-2357
18-2348
—
—
18-7961
18-1112
18-1191
18-1113
—
—
—
18-1158
18-2002
18-2053
18-4221
18-3200
18-3700
O.E.M. #
24-30622
52-822539
17-30632
24-30893
44-12238T
43-12635
25-97386
31-12576
12-12577
31-12578
12596A2
12-70132
11-401198
31-30956
26-76868
26-70081
13191A1
14-31210
11-52707
Qty.
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
AR As required
447
OUTBOARD — MERCURY/MARINER - Gearcase Assembly