Equip your semi truck to be Ready for the Road Ahead , with the Gates 3.46" MegaCrimp Male Pipe 30° Cone Seat Steel Hydraulic Coupling, a key piece to offer 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 .