Ensure your vehicle is Ready for the Road Ahead with seamless hydraulic fluid transfers, with the Permco 5000 Series 2.5" Gear 2500 psi Hydraulic Pump. This replacement pump converts mechanical power from an engine into hydraulic energy that can be used to displace fluids throughout a vehicle. Engineered with an super-durable build to tolerate extreme pressures. FleetPride is your First Click in Heavy Duty .