Prepare your semi to be Ready for the Road Ahead , with the Parker-Hannifin 1/2" ID Female JIC 37° Swivel Steel Hydraulic Coupling that offers a smooth transfer of power between hydraulic components. With a streamlined design, this replacement coupling provides a quick and easy connection of hydraulic fuel lines from components such hoses and pumps. Manufactured with a solid metal body to endure demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty .