Kit Contents: 8354671 Forward thrust washer 879637 Plastic drive sleeve 826074Q1 Aft adapter with tab washer 8276141 Prop nut Please note this kit replaces the old castellated style aft adaptor which are no longer available. Orignal factory product fit Qiclear 13 1/4*17 and 14 1/2*19 propellers Applications For use with Mercury Propellers on the following applications Mercury / Mariner 50-60hp 2-Stroke Bigfoot Mercury / Mariner 40hp, 50hp & 60hp 4-Stroke Bigfoot Mercury / Mariner 70hp thru 250hp 2-Stroke Mercury / Mariner 70hp thru 250hp 4-Stroke (inc Verado) MerCruiser Alpha & Alpha One Mercruiser Bravo I drives (less than 400hp) Force Outboards 90-120hp To check if this part is suitable for your engine, please contact us with your engine model & serial number.