Gaskets and Seals› Drivetrain Gaskets and Seals

SIERRAMARINE

OIL SEAL

$22.65

SKU: S08C 18-0581

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 18-0581 is a replacement oil seal designed for Mercury and Chrysler outboards. It features an outer diameter of 0.984 inches (25mm), a shaft size of 0.500 inches (12.7mm), and a width of 0.200 inches (5.1mm). This oil seal is interchangeable with Chrysler/Force/US Marine part number 26-413651 and Mercury Marine part numbers 26-41365 and 26-413651.

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 18-0581

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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