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.