Update your semi with a smooth transfer of power between hydraulic components, with the Weatherhead 3.36" Female JIC 37° Flare Swivel Steel Hydraulic Coupling / Adapter that ensures you're Ready for the Road Ahead™. 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®.