Engines and Components Pistons and Piston Rings

JE Pistons

MITSU 4G64 W/4G63 HEADS 10.5:1 E85

$308.96

SKU: J001 6656M865

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Description

The JE Pistons 6656M865 is a replacement forged piston from Wiseco's Pro Tru Sport Compact E85 Series. It is engineered for high-performance sport compact engine builds running E85 ethanol fuel.

Forged and CNC-machined in Ohio, USA, this piston offers an exceptional strength-to-weight ratio through dedicated forgings optimized for the final piston shape. It features heavy-duty 1400HD construction with .225" wall tool steel wrist pins, designed to withstand the increased cylinder pressures and thermal demands of E85 and forced induction applications.

Fitment

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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 6656M865

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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