JE Pistons 308409 Forged Piston for Polaris XP 850 ATV 3.543" Bore

The JE Pistons 308409 is a premium forged racing piston designed specifically for Polaris XP 850 Sportsman and Scrambler ATV engines. Engineered with over 75 years of racing expertise, this high-performance piston delivers the ultimate combination of durability and power for demanding ATV applications.

Key Features:

• Forged in the USA from 2618 aluminum alloy for exceptional tensile strength and heat resistance
• 3.543-inch (90.00mm) bore diameter with 11.50:1 compression ratio for increased performance
• Proprietary Forged Side Relief (FSR) design minimizes friction and reduces weight with optimized skirt width
• 100% CNC-machined to exacting tolerances for precise fitment and reliability
• Designed specifically for Polaris XP 850 engines to maximize performance and durability
• Proven performance in motocross, dirt track, and extreme ATV racing applications

JE Pistons sets the standard for forged racing pistons with precision engineering and manufacturing processes that meet the demands of professional racers and performance enthusiasts. Each piston is designed for the specific engine application to optimize combustion efficiency, reduce friction losses, and withstand the rigors of high-performance use.