MERCRUISER
Cooling System
V-BELT APPLICATION
Alternator/
Sea
Engine
Years
Serial #
Water Pump Power Steering
Water Pump
120
1964-73
1666601-3770649
--
--
120
1974-82
3770650-6229717
(37")
--
120
1974-82
3770650-6229717
(40")
--
120(2.5L)
1982-89
6229718 - C853255
--
--
120(2.5L)
1982-89
6229718 - C853255 W/P/S
--
140
1968-73
2508261-3770649
--
--
140
1974-82
3770650-6229717
(37")
--
140
1974-82
3770650-6229717
(40")
--
140/3.0L/3.0LX
1982-newer
6229718 & UP
--
--
140/3.0L/3.0LX
1982-newer
6229718 & UP W/PS
--
150
1964-66
1666495-2048646
--
--
160
1967-69
2048022-2770031
--
--
165
1970-73
2770032 - 3774864
--
--
165
1974-81
3774865 - 5813433
(37")
--
165
1974-81
3774865 - 5813433
(40")
--
165/170/180/190/3.7L
1985-89
6916779 - C762299
--
--
470 (170HP)
1976-82
4208730 - 6218036
--
--
470 (170HP)
1983-84
6218037 - 6916778
--
--
488
1983-84
6170297 - 6916778
--
--
175
1987
OB527955-OB773242
--
--
175/185/4.3L
1985-92
A331455 - D714106
4.3L
1992-96
D714107 - F802999
--
4.3L (2bbl)
1988-92
OB773243-OD714106
--
--
4.3L (GenII) (2 bbl)
1992-96
OD714107-OF802999
--
--
4.3LX (4 bbl)
1988-92
OB775130-OD714369
--
--
4.3LX (GenII) (4 bbl)
1992-96
OD714370-OF802999
--
--
888
1971-77
3108723 - 4887829
--
--
888
1971-77
3108723 - 4887829
(30")
898 W/O HIGH MT P/S
1977-84
4762210 - 6218461
898 W/ HIGH MT P/S
1977-84
4762210 - 6218461
898/200/5.0L
1985-95
6218462 - F600999
w/ closed cooling
898/200/5.0L
1985-95
6218462 - F600999
w/o closed cooling
200
1969
2453769 - 2712072
--
--
200
1987
OB525982-OB774444
--
--
205
1985-1991
A331455 - D714369
205
1987
OB527955-OB775129
--
--
215
1970-72
2781153 - 3563181
--
--
215 MIE
1970-72
2781153 - 3563181
--
--
225
1973-74
3385721 - 4166999
225 MIE
1973-74
3385721 - 4166999
--
--
225 MCM/MIE
1967-69
2278647 - 2694014
--
--
228 W/O HIGH MT P/S
1977-82
4765100-6218461
228 W/ HIGH MT P/S
1977-82
4765100-6218461
5.0L (2 bbl)
1988-95
OB774445-OF600999
--
--
5.0LX (4 bbl)
1988-95
OB773740-OF600999
--
--
228/230/5.0L
1983-95
6218462 - F600999
w/ closed cooling
228/230/5.0L
1983-95
6218462 - F600999
w/o closed cooling
228 MIE
1977
4765100 - 4929030
--
228/230/5.0L MIE
1978-87
4929030 - B788151
w/stamped steel pulley
228/230/5.0L MIE
1978-87
4929030 - B788151
w/cast alum. pulley
230
1987
OB525982-OB773739
--
--
233
1975-77
4173000 - 4902304
--
--
233
1975-77
4173000 - 4902304
w/stamped steel pulley
233 MIE
1975-76
4173000 - 4775784
--
--
250
1968-69
2314301 - 2639854
--
--
250
1977
4768000 - 4908849
255 MCM/MIE
1973-74
3258728 - 4175499
--
--
255
1975-76
4175500 - 4498700
--
255
1976
4498701-4499060
--
--
255
1976
4499061-4767999
--
--
255 MIE
1975-77
4175500 - 4498700
--
--
255 MIE
1977-78
4498701 - 4924564
--
255/260/5.7L MIE & Ski
1978-86
4924565 - B522505
--
260/5.7L MIE & Ski
1987-93
B522506 - F024999
--
w/stamped steel pulley
260/5.7L MIE & Ski
1987-93
B522506 - F024999
--
w/cast alum. pulley
5.7L MIE & Ski
1994-96
F025000 - K040306
N/A
260 W/HM P/S
1978-82
4908850 - 6218461
260 W/LM P/S
1978-82
4908850 - 6218461
--
260
1987
OB525982-OB773304
--
--
637
