00040957 ROCKER ARM STUD CAP, 7/16 -24(Slotted), left hand threads
Fits the following Models:
1937 Chief, 1938 Chief, 1939 Chief, 1940 Chief, 1941 Chief, 1942 Chief, 1944 Chief, 1945 Chief
1937 Four, 1938 Four, 1939 Four, 1940 Four, 1941 Four, 1942 Four