Get your semi Ready for the Road Ahead with a smooth transfer of power between hydraulic components, with the Parker-Hannifin 3/4" ID Female JIC 37° Swivel Hydraulic Coupling. By utilizing a streamlined design, this replacement coupling provides a quick and easy connection between hydraulic fuel lines such as hoses and pumps. Built with a solid metal body to tolerate demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty .