JE Pistons 370251 Forged Piston Kit 4.125" Bore 120ci Milwaukee 8

The JE Pistons 370251 is a high-performance forged piston kit engineered specifically for Harley-Davidson Milwaukee 8 engines. This 2-cylinder big bore kit features a 4.125-inch (104.78mm) bore diameter and delivers 120 cubic inches of displacement with an 11.0:1 compression ratio for maximum power output.

Key Features:

• Forged in the USA from 2618-T6 aluminum alloy for superior tensile strength and durability
• Flat-top piston design optimized for Milwaukee 8 performance applications
• Accumulator groove provides additional volume for combustion pressure management
• Skirt coating aids in optimal break-in and extended performance longevity
• Complete kit includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
• Engineered, forged, and machined 100% in the USA with over 75 years of expertise

As a leader in forged racing pistons, JE Pistons combines decades of V-Twin performance engineering with precision manufacturing. Each piston is designed specifically for the Milwaukee 8 engine platform to deliver the ultimate combination of durability and performance, from powerful cruisers to all-out V-Twin drag racing applications.