HD-OEM: 18600-36Part Number: 11-0575 UOM: 1 - SET Summary:Knucklehead tappet block set features cast iron construction finished with zinc plating. Over 500 pairs sold since 1999! Zinc plating may be painted or dulled to look like cadmium.Finish: Zinc Fitment: EL 1936-1940 FL 1941-1947 Country of Origin: Imported