Engines and Components› Engines, Blocks and Components

SIERRAMARINE

CYLINDER BLOCK GASKET

$37.23

SKU: S08C 18-2943

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sierra Marine 18-2943 is a cylinder block gasket manufactured with OEM material for precise fit and compatibility. This gasket is designed for Mercury Marine engines, specifically fitting the 80 Jet, 100 HP, 115 HP, and 125 HP 4-cylinder models. It is also listed with an OEM interchange number of GLM: 37670.

Fitment

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Specifications

BrandSIERRAMARINE
Part NumberS08C 18-2943

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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