Direct Drive Adapter


Use to bolt your Ultra-Prop directly to an engine PTO shaft. Available here for common shaft sizes 1″ and up. Contact us for mounting on smaller shafts. Note: for shaft sizes above 1″, you will need to machine the pilot hole in one side of the propeller hub the same diameter as the PTO shaft to ensure propeller alignment. Contact us to order a propeller hub pre-machined to the correct pilot hole diameter.

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Additional information

For shaft size

3/4", 1", 1-1/8", 1-1/4", 1-7/16"