PTO-to-Pump Coupler — 1-3/8" 6-Spline to 1" Round Bore, 3-3/4" Length for Standard 540 RPM PTO

Adapter that converts a 1-3/8" 6-spline PTO output to a 1" round pump bore. Designed for use with a standard 540 RPM PTO. Overall length is 3-3/4". A direct-fit coupler for linking PTO shafts to pumps that accept a 1" round input while keeping the original specified dimensions.