Engines and Components› Pistons and Piston Rings

JE Pistons

JE Pistons 2021 Kawasaki KX250 PRO SERIES 78MM/14.1 Piston Kit

$314.99

SKU: J001 379029

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 379029

As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its range of Pro Series pistons. Pro Series (R) Piston kits feature purpose-built forging designs that reduce overall piston weight without sacrificing strength or durability. Internal and external strut braces significantly reduce stress on critical areas while ultra-flat ring grooves improve ring seal for better, sustained performance.

MIA's Description

Machined from 2618-T6 high tensile forged aluminum, this JE Pistons kit features dome/dish designs with smooth flowing radii, eliminating the need for deburring or preparation. JE designs are specifically engineered for extreme applications including professional competition. Pins, pin fitment, locks, and rings are included unless otherwise noted. Made in the U.S.A.

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.

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Specifications

BrandJE Pistons
Part NumberJ001 379029

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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