Ensure your semi is Ready for the Road Ahead with a smooth transfer of power between hydraulic components, with the Parker-Hannifin 1" Female NPTF Steel Hydraulic Coupling. 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 .