Cylinder Works Cylinder Head Kit For Yamaha YZ125 2005 – 2021
Brand new high-performance replacement cylinder head for Yamaha YZ125 (20052021). Precision-engineered for serious riders and racers, this head includes premium components and advanced machining for improved durability and flow. Built to handle high-lift cams and racing conditions, while maintaining stock port shapes for compatibility and reliability.
Features:
Includes cam caps and cam cap bolts for a complete installation
Fitted with C630 nickel/aluminum/bronze valve seats and guides
Competition valve job performed for improved performance
Shortened valve guides to accept higher lift camshafts
Unshrouded combustion chamber and blended bowl-to-port seat for optimized flow
Stock-shaped intake and exhaust ports
Made in the U.S.A. with premium materials and precision engineering
