Engines and Components› Pistons and Piston Rings

JE Pistons

JE Pistons Kawasaki KX250 F 14.4 to 1 78MM Piston Single

$314.99

SKU: J001 371309S

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
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Description

The JE Pistons 371309S is a high-performance engine piston designed for the 2020 Kawasaki KX250 dirt bike. It is engineered for improved wear and even loading, with a custom-lapped compression ring for enhanced power. Made from 100% billet machined material, it offers a superior strength-to-weight ratio and optimized fit.

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

BrandJE Pistons
Part NumberJ001 371309S

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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