Wiseco K596M855AP Sport Compact Piston Kit 85.5mm Bore with ArmorPlating

The Wiseco K596M855AP is a high-performance forged piston kit engineered for sport compact engines featuring an 85.5mm bore diameter. This complete kit is designed for Mitsubishi 4G63 turbocharged applications and delivers the strength and precision required for modified engines running power adders like turbochargers, superchargers, and nitrous oxide systems.

Key Features:

• 85.5mm bore diameter (+0.5mm oversize) for precision fitment
• ArmorPlating (AP) coating provides enhanced wear resistance and reduced friction
• Forged from aerospace-quality aluminum alloy for maximum strength
• Advanced heat-treating and finishing processes ensure reliability under extreme conditions
• Crown thickness and ring lands optimized for high-boost applications
• Complete kit includes pistons, high-quality piston rings, wrist pins, and circlips
• Designed with tighter tolerances than OEM components
• Manufactured in the USA with over 80 years of Wiseco engineering expertise

Wiseco's sport compact piston kits are built to withstand the demands of both street and race applications, offering superior durability and performance compared to stock cast pistons. The advanced forging process creates pistons with improved tensile strength, making them ideal for high-horsepower builds and aggressive driving conditions.