Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

8499 HARLEYDAVIDSON EVOLUTION 80CI/1340L OS .010 PISTON SET

$99.43

SKU: U00B KB266.010

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Special Order
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Non-Returnable Item
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Description

The United Engine & Machine Co KB266.010 is a piston kit designed for Harley-Davidson Evolution engines from 1984-1999. It features a hypereutectic T5 aluminum alloy construction with a high silicon content for improved wear resistance and heat management. This kit provides a 10.5:1 compression ratio and has a dome top design.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB266.010

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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