Engines and Components› Belts and Pulleys

SIERRAMARINE

SERPENTINE BELT

$54.60

SKU: S08C 18-15129

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Sierra 18-15129 is a replacement serpentine belt for Mercury Marine engines. It is designed to fit 200 DFI models from 1997 and up, and 225 DFI models from 1998 and up. This belt is interchangeable with Mercury Marine part numbers 57-828507 1 and 57-828507Q01.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandSIERRAMARINE
Part NumberS08C 18-15129

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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