Engines and Components Oiling Systems

TwinPower

Twin Power 37-99 Big Twin Except 99 Twin Cam Oil Pump Check Ball Replaces H-D 8866

$25.66

SKU: T09O 046504

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Twin Power oil pump check ball is a replacement component designed for 1937-1999 Big Twin Harley-Davidson models, excluding 1999 Twin Cam. It replaces Harley-Davidson part number 8866. The ball is constructed from durable steel.

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.

Available on iOS & Android

Specifications

BrandTwinPower
Part NumberT09O 046504

Videos

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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