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Engines and Components› Pistons and Piston Rings

Wiseco

Wiseco 4 Stroke Forged Series Piston Kit, 77.00 MM Bore, 13.5:1 CR

$232.95 $213.45 Save $19.50

SKU: W00C 40072M07700

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Non-Returnable Item
INSTALL DIFFICULTY
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Description

The Wiseco 40072M07700 is a replacement piston kit designed for the 2012-2013 Yamaha YZ250F. It features a 77.00mm standard bore with a 13.5:1 compression ratio to enhance throttle response and overall engine performance.

Constructed from dedicated forgings of aerospace alloy, this piston offers a superior strength-to-weight ratio and is precision crafted in the USA. The kit includes the piston, high-performance rings, an alloy pin, and circlips for a complete top-end rebuild.

Fitment

Fitment Guaranteed

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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

BrandWiseco
Part NumberW00C 40072M07700

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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