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Sierra Marine Parts Catalog: Mercruiser

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18-1155
18-1160
BALL BEARING
DRIvE BEARING KIT
Replaces: 30-88957A1, T
Replaces: 31-35988A2, 31-35988A12
MERCRUISER STERNDRIvE UPPER GEAR HOUSING BEARINGS
Sterndrive
Drive Gear
Model
Drive Ratio Years
Serial Number
(Yoke)
Driven Gear
Upper Cap
IA,IB,IC & EZ Shift All
1964-66
1684188 - 2065186
18-1160
18-1161
18-1179
120/140
1.98
1967
2062141- 2187468
18-1160
18-1161
18-1161
120/140
1.98
1967-71
2187469 - 3134193
18-1160
18-1161
18-1179
120/140
1.98
1971-82
3134194 - 6225576
18-1160
18-1161
18-1165
470/485
1.84
1976-82
4208730 - 6225576
18-1160
18-1161
18-1165
160
1.68
1967
2065190 - 2182197
18-1160
18-1161
18-1161
160
1.68
1967-71
2182198 - 3134193
18-1160
18-1161
18-1179
165
1.65
1971-81
3213658 - UP
18-1160
18-1161
18-1165
888
1.5
1971-73
3106717 - 3134193
18-1160
18-1161
--
888
1.5
1973-77
3134194 - UP
18-1160
18-1161
18-1165
225-S
1.5
1974
3856268 - 4200499
18-1160
18-1161
18-1165
898/228
1.65
1977-82
4782330 - 6225576
18-1160
18-1161
18-1165
233
1.32
1975-77
4200500 - UP
--
--
18-1165
250
1.32
1977
4791300 - 4898729
--
--
18-1165
255-TRS
All
1973-74
3377316 - 4203749
18-1162
18-1162
--
260
1.5
1978-82
4898730 - 6225576
18-1160
18-1161
18-1165
280-TRS
All
1975-76
4203750 - 4895399
18-1162
18-1162
--
R/MR/Alpha One
1.98/1.84/
1.65/1.50
1984-90
6225577 - UP
18-1160
18-1161 ➀ ➃
18-1165
R/MR/Alpha One
1.5
1984-90
6225577 - UP
18-1160
18-1142
18-1165
R/MR/Alpha One
1.32
1984-90
6225577 - UP
--
--
18-1165
R/MR/Alpha One
1.5 Heavy
Duty
1984-90
6225577 - UP
--
18-1142
18-1165
Alpha One SS
1.32
1986-89
A545004 - UP
--
--
18-1165
Alpha One SS
1.5
1986-89
A545004 - UP
--
18-1142
18-1165
Alpha One Gen II
2.40/1.98/
1.84/1.65
1991-95
D469859 - F679999
18-1160
18-1161
18-1165
Alpha One Gen II
1.5
1991-95
D469859 - F679999
18-1160
18-1142
18-1165
Alpha One Gen II
2.40/1.94/
1.81/1.62
1996-97
F680000 - K999999
18-1160
18-1161
18-1179
Alpha One Gen II
1.47
1996-97
F680000 - K999999
18-1160
18-1142
18-1179
Alpha One Gen II
2.40/2.00/
1.94/1.81/
1.62
1998 & Up
L100040 - UP
--
18-1161
18-1179
Alpha One Gen II
1.47
1998 & Up
L100040 - UP
--
18-1142
18-1179
II-TR
--
1973-76
3377316 - 4794899
18-1162
18-1162
--
SSM II
--
1982-97
ALL
18-1162
18-1162
--
TR/TRS
--
1977-93
4794900 - UP
18-1162
18-1162
--
Bravo I, II, III
All
--
B664190 & UP
--
--
18-1129
Timken Cone # 89449 / Cup 89410
Bearing for U-Joint Yoke
726
 Straight Shoulder Gear Only
Use 18-1142 for 1.5:1 Upper Gear Ratio