Chrome plated plastic. Show covers that end the rough look of tappet block mounting bolts. Fits over OEM style 12-point tappet block bolts only. Secures with silicone adhesive.
Cap kit, tappet block bolts. Chrome
€15.60
L76-84 Shovelhead; 84-99 Evo Big Twin (NU). Others that are custom equipped with 12-point tappet guide bolts.