YS Parts No.OEM Parts No.Fit for EngineSize and SpecificationCategory
YS18-1544018-15440Sierra 18-15440 V-Belt Replaces 57-93658QSierra 18-15440 Mercruiser, OMC, Volvo V-belt - Effective Length: 44" Top Width: 29/64"

Sierra high-quality engine parts are designed to meet OEM specifications.

High strength synthetic cords resist shockload
Their low stretch properties assure uniform performance over the life of the belt
Special rubber compound section assures smooth and even transfer of load forces to the cords
Cogs are molded to precise engineering tolerances to improve flexibility and maintain cord support
Provides a large area for air circulation keeping the belt cool while preventing heat build up
Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer
Effective Length: 44" (111.8 cm)

Top Width: 29/64" (11.5 mm)

Interchangeable with:
Johnson/Evinrude Outboard
311046
Mallory
9-55006
Mercruiser Stern Drive
57-45856
57-93658Q
57-49213A1
57-93658
57-49213
OMC Inboard
311046
OMC Stern Drive
311046
MERCRUISER V-BELTS
YS18-1537018-15370Sierra 18-15370 V-BeltSierra 18-15370 Power Steering V-BELT for Mercruiser & OMC

High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt.
The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords.
Cogs are molded to precise engineering 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.
Rubber edges maintain positive, no slip contact with pulley grooves for reliable energy transfer.
Effective Length: 37"

Top Width: 29/64"

Interchangeable with:

Mallory
9-55005
Mercruiser Stern Drive
57-65607
57-65607Q
Mercury Marine
57-65607T
MERCRUISER V-BELTS
YS18-1511618-15116Sierra 18-15116 Serpentine Belt Replaces 57-861758QSierra 18-15116 Serpentine Belt
Use with metal 5-3/4" dia. p/s pump pulley and engines with standard cooling. Sierra engine components are manufactured to meet or exceed OEM requirements.

Length: 86.75"
Width: 13/16"
Interchangeable with:

Mercruiser Stern Drive
57-861758
57-861758Q
MERCRUISER V-BELTS
YS18-1511318-15113Sierra 18-15113 Serpentine BeltSierra 18-15113 Serpentine Belt

Sierra Serpentine Belt for use on Mercruiser Stern Drives.

Interchangeable with:

Mallory
9-55022
9-55025
Mercury Marine
57-8077555
Application:

Mercruiser Stern Drive

350 MAG MPI ALPHA/BRAVO
s/n 0L331599 thru 0M299999
4.3L (GEN +) 2 BBL GM
sn 0L010044 thru 0M614999
4.3L EFI (GEN+) TBI GM
s/n 0L012009 thru 0L618999
4.3LH GEN + 4 BBL GM
s/n 0L010044 thru 0M614999
5.0L EFI GM
s/n 0L331631 thru 0M299999
5.7L EFI GM
s/n 0L325977 thru 0M299999
MERCRUISER V-BELTS
YS18-1555018-15550Sierra 18-15550 V-Belt Replaces 57-13458QSierra 18-15550 V-Belt
Sierra V-Belts are designed to meet or exceed OEM requirements. Their low stretch properties assure uniform performance over the life of the belt.

High strength synthetic cords resist shockload
Special rubber compound section assures smooth and even transfer of load forces to the cords
Cogs are molded to precise engineering tolerances to improve flexibility and maintain cord support
Provides a large area for air circulation keeping the belt cool while preventing heat build up
Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer
Specifications:

Top Width: 26/64" or 11.5mm
Effective Length: 55" or 139.7cm
Interchangeable with:

Mallory
9-55000
Mercruiser Stern Drive
57-13458
57-13458Q
57-13458T
Application:

330 GM 454 (1982-1987)
454 MAG ALPHA GM (1986-1989)
MERCRUISER V-BELTS
YS18-1540518-15405Sierra 18-15405 V-Belt Replaces 57-76269QV-belt for OMC, Volvo and Mercruiser Engines - Effective Length 40 1/2", Top Width 29/64"

Replaces:

Mercury 57-76269Q, 57-76269
Volvo 978515
OMC 0509307
Details:
High strength synthetic cords resist shockload failure. Their low stretch properties assure uniform performance over the life of the belt.
The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords.
Cogs are molded to precise engineering 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.
Rubber edges maintain positive, no slip contact with pulley grooves for reliable energy transfer.
MERCRUISER V-BELTS

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