Get your semi Ready for the Road Ahead with a smooth transfer of power between hydraulic components, with the Parker-Hannifin Female JIC 37° Swivel Steel Hydraulic Coupling. To quickly connect fuel lines, pumps, and hoses, this replacement coupling is forged with a streamlined design that is fast and easy to pair. Fashioned with a durable metal body to withstand demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty .