Prepare your semi to be Ready for the Road Ahead™, with the Gates 4.11" MegaCrimp® Male Pipe 30° Cone Seat Steel Hydraulic Coupling that offers a smooth transfer of power between hydraulic components. This replacement coupling offers a quick and easy connection of hydraulic fuel lines from components such as pumps and hoses. Engineered with a durable metal body to endure demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty®.