JE Pistons 222388 Forged Piston Kit 105mm Bore 12.5:1 Compression

The JE Pistons 222388 is a high-performance forged piston kit engineered for Polaris Predator 500 and Outlaw 500 ATV applications. This premium piston kit features a 105mm (4.134 inch) bore diameter with a 12.5:1 compression ratio, representing a 5.8mm overbore configuration designed to maximize engine performance and power output.

Key Features:

• Forged from 2618 aluminum alloy for exceptional tensile strength and durability in high-demand racing applications
• Designed, forged, and machined 100% in the USA with over 75 years of racing piston expertise
• Proprietary Forged Side Relief (FSR) design reduces friction and power loss while minimizing weight
• Complete kit includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
• Application-specific design optimized for ATV performance and reliability

JE Pistons leverages advanced CNC machining and purpose-designed forgings to deliver racing-quality pistons trusted by professional engine builders worldwide. Each piston is engineered for the specific demands of powersports applications, providing the ultimate combination of durability and performance from motocross to recreational riding.