Page 792 - 2021 Sierra Catalog

Part No.
18-15290 18-15300 18-15325 18-15345 18-15370 18-15380 18-15390 18-15400 18-15405 18-15410 18-15415 18-15430
HP
V-BELT APPLICATION
Top Width (in.)
29/64 29/64 29/64 29/64 29/64 29/64 29/64 29/64 29/64 29/64 29/64 29/64
Sea Water Pump
V-BELTS
➊ High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt.
➋ The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords.
➌ Cogsaremoldedtopreciseengineering tolerances to improve flexibility and maintain cord support. Cog geometry provides a large area for air circulation to keep the belt cool and prevent damaging heat build up in the cushion section.
➍Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer.
BELT SIZE LISTING BY NUMBER
OE #
Effective Length (in.)
Top Width Part No. (in.)
OE #
Effective Length (in.)
57-13457, 57-13457T, 57-13457Q, 57-53215, 57-53215T
29
29/64 18-15435
57-64416, 57-49211
43 1/2
57-49756
30
29/64 18-15440
57-49213A1,57-45856
44
57-77274A1, 57-77274
32 1/2
29/64 18-15450
-
45
57-74271T, 57-74271, 57-74271Q
34 1/2
29/64 18-15455
-
45 1/2
57-65607T, 57-65607, 57-65607Q
37
29/64 18-15460
57-48120A1, 57-48120, 57-48120Q1
46
-
38
29/64 18-15470
57-78200A1, 57-78200, 57-78200Q1
47
57-52692
39
29/64 18-15480
57-48122, 57-48122Q
48
57-32850, 57-69143T, 57-69143Q
40
29/64 18-15490
57-816295T, 57-816295Q
52 1/2
57-76269, 57-76269Q
40 1/2
29/64 18-15495
57-91035A1, 57-91035Q1, 57-91035
49 1/2
57-49043A1, 57-64032A1, 57-32850, 57-49043, 57-64032, 57-64032Q1, 57-816544
41
29/64 18-15500
57-96834T, 57-96834Q, 57-96834, 57-13458, 57-13458Q
50
57-36356
41 1/2
29/64 18-15520
57-33170, 57-33170Q, 57-37619T
52
57-49211, 57-64416
43
29/64 18-15550
57-13458T
55
Liter
Model
Years
CID
# Cyl
Stroke
Serial #
Belt Type
Alternator/ Water Pump
Power Steering
110
1963-1966
153
4
4
1537370 - 2044033
V-BELT
18-15410
—
120
1964-1973
153
4
4
1666601 - 3770649
V-BELT
18-15410
—
120
1974-1982
153
4
4
3770650 - 6229717
V-BELT
18-15410
18-15400 (40” BELT)
120
1974-1982
153
4
4
3770650 - 6229717
V-BELT
18-15410
18-15400 (40” BELT)
120
1982-1986
153
4
4
6229718 - b531853
V-BELT
18-15410 (19)
—
120
1982-1986
153
4
4
6229718 - b531853
V-BELT
18-15400 (18)
—
2.5L
120
1982-89
153
4
4
6229718 - C853255
V-BELT
18-15410
—
2.5L
120 (18)
1982-89
153
4
4
6229718 - C853255
V-BELT
18-15400
18-15370
140
1968-73
181
4
4
2508261-3770649
V-BELT
18-15410
—
110
120
120
120 —
120
120 —
120
120 —
— — —
—
140
— —
774
(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
(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
(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
(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
I/O — MERCRUISER - Cooling System