See more: Tappet Parts
These tappet nuts fit all pushrod adjuster bolts with 9/32"-32 thread as used on Knucklehead, Panhead and Shovelhead Big Twin 1936-1984, 45CI 1940-1973 and Sportster 1957-1985, Tappet screw nuts, set of four (OEM 18570-38)
High quality replacement tappet screws and nuts. Straight replacement for the OEM parts.