Fitments
36-47 Knucklehead; All S&S KN-series (Knuckle style) engines
Part Description
S&S, Knucklehead tappet block, front. Silver
Cast iron tappet guide with a silver powder coated finish. Used in the S&S KN-series (Knuckle) engines, will also fit stock 36-47 Knucklehead engines. Includes gaskets and mounting hardware. Repl. 18600-36 front tappet guide. Note: See 531596 for front & rear set.