CP Pistons Yamaha YFZ450/R 13.25:1 Pistons 95mm STD Bore - M100

Upgrade your Yamaha YFZ450 or YFZ450R with the CP Pistons M1001 forged piston kit designed for 2004–2020 applications. Featuring a standard 95mm bore and a high-compression design, this piston kit delivers 13.0:1 compression for 439cc engines and 13.25:1 compression for 449cc engines, providing stronger throttle response and increased power across the RPM range.

Forged from premium aluminum alloy, CP Pistons are engineered for strength, thermal stability, and precise machining under aggressive riding conditions. The M1001 piston kit is ideal for performance trail riding, dunes, and race-oriented builds, offering consistent compression, long-term durability, and the proven reliability CP Pistons is known for in Yamaha ATV engines.