Equip your semi truck to be Ready for the Road Ahead™, with the Weatherhead 3.29" Female JIC 37° Flare Swivel Steel Hydraulic Coupling, a key piece to offer a smooth transfer of power between hydraulic components. Due to its streamlined design, this replacement coupling is able to provide a quick and easy connection between hydraulic fuel lines such as hoses and pumps. Engineered with a durable metal body to endure demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty®.