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CP Pistons

CP Pistons 19-21 Yamaha YZ250F 14.0:1 77mm STD Bore x 53.6mm Stroke (250cc) Piston Kit

$395.75 $375.97 Save $19.78

SKU: C00A MX1099

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

Moderate — 2–4 hours

Description

Piston kit for Yamaha YZ250F with a 14.0:1 compression ratio, 77mm standard bore, and 53.6mm stroke for 250cc engines. This piston kit enhances throttle response and durability on demanding off-road trails. Designed for motocross, it ensures optimal fit and smooth engine operation for competitive riding. Boost your bike's performance and extend engine life with this high-quality piston kit.

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

BrandCP Pistons
Part NumberC00A MX1099

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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