CP Pistons 12.5:1 Piston Kit for 03-06 Kawasaki KFX400 - M3003

SKU: M3003. The CP Pistons high-performance piston kit is engineered for 2003-2006 Kawasaki KFX400 engines built for aggressive trail riding, racing, or high-output off-road use. This kit features a 12.5:1 compression ratio with a 94mm bore (+4mm oversized) and 62.2mm stroke, increasing displacement to 434cc for stronger low-end torque, improved throttle response, and increased overall power. Precision-forged from premium aluminum alloy and CNC-machined to exact tolerances, these pistons deliver excellent strength, thermal stability, and reliable ring seal under demanding riding conditions. Built to CP Pistons’ proven performance standards, this kit provides dependable power gains and long-term durability.