Acme Prop Nut Kit 1 1/4″ Prop Shafts Suits Ski Wake Boats

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Acme Prop Nut Kit Includes:
x1 Cotter pin
x1 Nylock Prop nut ( 1 1/4 ” )
x1 Key

There are two possible prop nut options for 1 1/4″ shaft sizes on inboard wake/ski boats (e.g. 2015 and newer Malibu, Axis, Centurion, Supreme, Tige, ATX) might have a 3/4-10 UNC thread size instead of the standard 7/8-9 thread size. If your wake/ski boat has a 1 1/4″ shaft, it is important to verify.

You can verify by measuring the overall diameter of your shaft threads (on the prop end). If your thread measures approximately .75″ you require a 3/4-10 UNC nut . If your thread measures approximately .875 then you require a 7/8″-9 nut.