Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves
Spring kits come complete for one motor
Keepers are not included
Made in the U.S.A.
Yamaha -- WR 426 F -- (2002, 2001); Yamaha -- WR 400 F -- (1998, 1999, 2000); Yamaha -- YZ 400 F -- (1998, 1999); Yamaha -- YZ 426 F -- (2001, 2002, 2000)
Black Diamond? valves feature one-piece stainless steel construction with stellite tips and special impregnation to improve wear properties and reduce friction; White Diamond? valves feature...
Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valvesExtends the life of the valvetrain and intake components by...
These high quality replacement springs have been designed to exceeds the OEM specifications by fitting precisely on the spring shoulder diameter of both the OEM retainers, and KPMI? H.T. Steel...
Designed to out-perform and outlast the factory valve springsKit features lightweight, high-strength CrSi valve springs,H.T. steel base washers and titanium spring retainersComplete kit, everything...
Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valvesExtends the life of the valvetrain and intake components by...