Engines and Components› Pistons and Piston Rings

United Engine & Machine Co

4884 HARLEYDAVIDSON SHOVELHEAD 88CI/1.44L AND 98CI/1.60L OS .010 PISTON SET

$119.33

SKU: U00B KB294.010

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Description

The United Engine & Machine Co KB294.010 is a hypereutectic aluminum piston designed for Harley-Davidson V-Twin engines. It features a 3.635 in. bore, 4.750 in. stroke, and 7.440 in. rod length.

This piston has a Hemi Dome design with 42.30 cc volume. It offers two compression ratios depending on the stroke: 8.5:1 with a 4.250 in. stroke and 9.38:1 with a 4.750 in. stroke. The hypereutectic alloy provides high thermal barrier properties and a low thermal expansion rate.

Fitment

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Specifications

BrandUnited Engine & Machine Co
Part NumberU00B KB294.010

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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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