Industrial 1-3/8" 21-spline Female PTO to 1-3/8" 6-spline Male PTO Clamp Adapter, 7-5/16" long. This clamp-style adapter connects a 1-3/8" PTO shaft with a 21-spline female interface to a 1-3/8" 6-spline male interface, enabling a direct shaft-to-shaft connection in industrial equipment. Key specs: 1-3/8" shaft diameter, 21-spline female PTO, 6-spline male PTO, overall length 7-5/16".
