Engines and Components Pistons and Piston Rings

United Engine & Machine Co

9906 HARLEYDAVIDSON TWIN CAM/88 BIG BORE 95CI/1.55L OS .020 PISTON SET

$130.33

SKU: U00B KB904C.020

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
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Description

The United Engine & Machine Co. KB904C.020 piston is a forged alloy piston designed for street and race use. It features a 9.25:1 compression ratio and is made from 4032 forged alloy with 11% silicon content.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB904C.020

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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