JE Pistons 261527 Pro Series Piston Kit 102mm Bore Yamaha ATV UTV

The JE Pistons 261527 is a Pro Series piston kit designed for Yamaha YFM Raptor 660, Grizzly, and Rhino applications with a 102.0mm bore and 10.00:1 compression ratio. As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to create these Pro Series pistons, which are engineered, forged and machined 100% in the USA for each specific engine and racing application with input from professional-level teams and racers.

Key Features:

• Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
• Race-inspired two-ring design promotes quick revving and throttle response for noticeable power
• Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
• Designed specifically for each engine and use application to provide optimized performance durability
• Dome/dish features smooth flowing radii; requires no deburring or preparation

From motocross to dirt track and everything in between, JE Pistons' Pro Series are the ultimate forged piston choice for ATV competition. This kit includes piston, rings, wrist pin, and locks for a complete installation.