CP Pistons 12.0:1 Piston Kit for Harley Milwaukee Eight 143ci - M5152

SKU: M5152. The CP Pistons high-performance piston kit is engineered for 2017-2022 Harley-Davidson Milwaukee Eight engines built to a massive 143 cubic inches for maximum power and torque. This kit features a 4.500-inch bore and 4.500-inch stroke with a 1.080-inch compression height, producing a strong 12.0:1 compression ratio ideal for aggressive street and performance-oriented V-twin builds. Precision-forged from premium aluminum alloy and CNC-machined to exact tolerances, these pistons deliver exceptional strength, thermal stability, and long-term reliability under high load and elevated temperatures. Built to CP Pistons’ exacting standards, this kit is designed for riders demanding uncompromising Milwaukee Eight performance.