Will NOT fit GX200 because the rocker stud has a different thread pitch where it screws into the head.
Will fit predator head, gen 1 & gen 3 and clone.
This kit includes:
1 rocker arm DJ-1075
1 rocker stud DJ-1080
1 rocker adjuster DJ-1085
1 rocker adjuster lock nut DJ-1090
Please note you will need 2 of these kits for a complete set.