QD Overrunning Coupler

QD Overrunning Coupler New splined quick disconnect overrunning coupler. Coupler female I.D. is 1.125" 6 spline. The male O.D. is 1.375" and 6 splines. The coupler is rated at 75 max horsepower. Female: ID 1.125" 6 spline Male: OD 1.375" 6 Splines Maximum Horse Power: 75