New Old Stock Sheave Shaft with Retaining Nut, Part Numbers 28913 and 11-20166. Mercury Outboard Recoil Starer sheave shaft as used on engines including the Mercury Mark 30H-1 and 55H-1, Mark 35A, 55A, 58A and Merc models 300, 350, 400, 450, 500, 650, 700 GS.
