Engines and Components Oiling Systems

SIERRAMARINE

OIL SEAL

$26.98

SKU: S08C 18-2010

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

Easy — 1–2 hours

Description

The Sierra 18-2010 is a Mercury oil seal designed as a replacement for Mercury Outboards. It features an outer diameter of 0.875 inches, a shaft size of 0.437 inches, and a width of 0.250 inches.

This oil seal is interchangeable with several other part numbers, including GLM 85610, Mallory 9-76106, and various Mercury Marine part numbers such as 26-96063, 26-897153, and 26-77066.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C 18-2010

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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