6-20hp ENGINES WITH A 2.5" GEARCASE

MERCURY? & MARINER?: (14 spline shaft by Nissan, cotter pin) 4 stroke Bigfoot ('05+): 8hp, 9.9hp
MERCURY? & MARINER?:(12 spline, cotter pin) 4 stroke ('05 & newer): 8hp, 9.9hp
MERCURY? & MARINER?:(8 spline, lock nut) 2 stroke: 6hp, 8hp, 9.9hp, 15hp
MERCURY? & MARINER?: (14 spline shaft by Nissan, cotter pin)4 stroke Bigfoot (?05+): 8hp, 9.9hp / 4 stroke (?07+): 15hp, 20hp 207 11100701

SUZUKI?: (10 spline TYPE M) DT 2 stroke: 9.9hp (?83-?87), 15hp, 15C DF 4 stroke: 9.9hp, 15hp note: does not fit DT 8C & 9.9C (?88-?97)
YAMAHA?: 2 stroke & 4 stroke: 9.9hp, 15hp, 15C 20hp