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Engines and Components› Pistons and Piston Rings

CP Pistons

CP Pistons 02-05 Yamaha Raptor/Rhino 660 12.5:1 102mm +2mm OS Bore x 84mm Stroke 686cc Piston Kit

$334.75 $318.02 Save $16.73

SKU: C00A M1018B

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Non-Returnable Item
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Description

This top-of-the-line Big Bore Top End Kit is designed to unlock the full power of your Yamaha 660. It features a large 102mm +2mm bore size and a 12.5:1 compression ratio, delivering a serious boost in horsepower and torque. The kit is engineered for high-performance riding and includes a CP Carrillo 12.5:1 102mm Big Bore Forged Piston Kit (with OEM spec piston rings, wristpin, and circlips) and a Cometic Top End Gasket Kit with a 102mm Big Bore MLS Head Gasket. It comes with a 1-year warranty.

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

BrandCP Pistons
Part NumberC00A M1018B

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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