Engines and Components› Oiling Systems

Engineered Marine Products

ORING

$23.33

SKU: E051 25-25951

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

Beginner — under 30 min

Description

The Engineered Marine Products 25-25951 is an O-ring designed for MerCruiser sterndrive and inboard engines. It features an inside diameter of 0.5 inches, an outside diameter of 0.625 inches, and a width of 0.0625 inches. This O-ring replaces Mercury part numbers 32509, 806609, and F461342, and also crosses with Sierra part number 18-7165.

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

BrandEngineered Marine Products
Part NumberE051 25-25951

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.

View Full Return Policy