Page 793 - 2021 Sierra Catalog

I/O — MERCRUISER - Cooling System
HP Liter
Model
Years
CID # Cyl Stroke Serial #
181 4 4 3770650-6229717 181 4 4 3770650-6229717 181 4 4 6229718 - B450800 181 4 4 6229718 - B450800 181 4 4 6229718 - F603999 181 4 4 6229718 - F603999 181 4 4 L010042 - L382121 181 4 4 L382122 & UP
181 4 4 C856559 - F603999 181 4 4 C856559 - F603999 181 4 4 F604000 - K999999 181 4 4 A072812 & UP
4 4 1666495-2048646
4 4 2048022-2770031 224 4 4 B434941 - B774251 4 4 2770032 - 3774864
4 4 3774865 - 5813433 4 4 3774865 - 5813433 4 4 6916779 - C762299
224 4 4 6916779 - B434940 4 4 4208730 - 6218036 4 4 6218037 - 6916778 4 4 6170297 - 6916778
4 4 OB527955-OB773242 224 4 4 B436391 - B775248 224 4 4 691779 - B436390 224 4 4 B774252 - C762299 224 4 4 B775249 - C762299 224 4 4 6218037 - 6916778 224 4 4 5520115 - 6218036 224 4 4 5685394 - 6218036 224 4 4 6170297 - 6916778 194 6 4 1538930 - 1725960 230 6 4 1666495 - 2048046 250 6 4 2048022 - 2770031 250 6 4 2770032 - 3774864 250 6 4 3774865 - 5813433 250 6 4 3774865 - 5813433 292 6 4 2453769 - 2712072 229 6 4 6330183 - M6919655 262 6 4 B527955 - B773242 262 6 4 A331455 - B527954 262 6 4 A331455 - B775129
4 A331455 - D714369
4 B527955 - OB775129 262 6 4 OB773243-OD714106
262 6 4 D714107 - F802999 262 6 4 F803000 - L618999 262 6 4 F803000 - L618999 262 6 4 F803000 - L618999 262 6 4 F803000 - L618999 262 6 4 F803000 - L618999 262 6 4 A331455 - D714106 262 6 4 OD714107-OF802999 262 6 4 OB775130-OD714369
Belt Type
V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT V-BELT SERPENTINE SERPENTINE SERPENTINE SERPENTINE SERPENTINE V-BELT V-BELT V-BELT
(17) For engines with low mounted p/s pump (18) For engine with power steering
(19) For engines w/o power steering
(20) For engines with closed cooling
140 140 140 140
1974-82 1974-82 1982-1986 1982-1999
18-15410 18-15410 18-15410 18-15400 18-15400 18-15400 18-15400 — 18-15410 18-15400 18-15400 — 18-15410 18-15410 — 18-15410 18-15410 18-15410 —
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— 18-15410 18-15410 18-15410 18-15410 18-15410 18-15410 18-15410 —
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— 18-15440 —
18-15370 18-15400 — 18-15370 18-15370 18-15370 18-15370 18-15370 — 18-15370 18-15370 18-15370 —
— 18-15410 — 18-15370 18-15400 18-15410 18-15410 18-15405 18-15410 18-15410 18-15490 18-15410 18-15410 18-15410 18-15410 18-15410 — 18-15410 18-15410 —
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— 18-15370 18-15400 — 18-15520 18-15520 18-15520 18-15520 18-15520 18-15490 18-15490 —
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— 18-15520
(37” BELT) (40” BELT)
140 3.0L 140 3.0L 140 3.0L 140 3.0L
140 / 3.0L / 3.0LX
140 / 3.0L / 3.0LX
3.0L 1987-1994 3.0L 1987-1994
(19) (18) (18) (18)
(19) (18)
3.0L 3.0L 1998-1999 3.0L 3.0L 1999-2010 3.0L 3.0LX 1990-1995 3.0L 3.0LX 1990-1995 3.0L 3.0LX 1986-1997
3.0L 3.0L MPI 150 150
160 160
165 165
165 165
165 165
165 165
2008-2010 1964-66 1967-69 1987 1970-73 1974-81 1974-81 1985-89 1985-1986 1976-82 1983-84 1983-84 1987
1987
(37” BELT) (40” BELT)
170 3.7L 170
170
170
165 / 170 / 180 / 190 / 3.7L 170
470
470
488 175 180 190
470 470 485 488 140 150 160 165 165 165 200 185 175 185 205 205 205 4.3L 4.3L 4.3L 4.3L
175 180 190
1985-1986 3.7L 3.7L 1988-1989 3.7L 3.7LX 1988-1989
140 150
1983-1984 MIE 1980-1981 1980-1982 1983-1984
1963 1964-1966 1967-1969 1970-1973 1974-1981 1974-1981 1969
(4bbl) 1983-1984 1987
(2bbl) 1985-1986 1985-1987 1985-1991
(37” BELT) (40” BELT)
(2bbl)
ALPHA RWC ALPHA FWC ALPHA RWC ALPHA FWC ALPHA RWC
(1) 1/2” wide (13mm) belt (2) 3/8” wide (10mm) belt (3) 28” wide (711mm) belt (4) 30” wide (762mm) belt (5) 37” wide (940mm) belt (6) 40” wide (1016mm) belt (7) 50” wide (1270mm) belt (8) 55” wide (1397mm) belt
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18-15460
18-15116
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18-15116
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18-15113
18-15440
— 18-15490 — 18-15490
4.3L 4.3L
4.3L 4.3L
4.3L 4.3L
4.3L 175 / 185 / 4.3L 4.3L 4.3L Gen II (2bbl) 4.3L 4.3LX (4bbl)
(14, (15, (19)
21, 22) 21)
1987 1988-92 1992-96 1996-1999 1996-1999 1996-1999 1996-1999
(19) 1996-1999 1985-92
1992-96 1988-92
(9) Use with 5 1/2” (140mm) dia water pump pulley
(10) Use with 5 7/8” (149mm) dia water pump pulley (11) Use with 7” (178mm) dia water pump pulley
(12) Use with stamped steel sea water pump pulley
(13) Use with cast aluminum sea water pump pulley (14) Use with plastic 4 3/4” (121mm) dia p/s pump pulley (15) Use with metal 5 3/4” (146mm) dia p/s pump pulley (16) For engine with high mounted p/s pump
(21) For engines with standard cooling
(22) Replacement kit includes 5 3/4” (146mm) pulley and longer serpentine belt (23) For engines with high mounted alternator
775
V-BELT APPLICATION
Alternator/ Water Pump
Power Steering
Sea Water Pump
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— 18-15345 —
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— 18-15345 18-15345 18-15345 18-15345 18-15345 —
— 18-15290 —
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— 18-15345 —
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