Get your vehicle Ready for the Road Ahead with seamless hydraulic fluid transfers, with the Permco P5151 Series 2.5" Gear 3000 psi Hydraulic Pump. Thanks to its sophisticated design, this replacement pump is able to convert mechanical power from an engine into hydraulic energy that can be used to displace fluids throughout a vehicle. Crafted with a super-durable build to tolerate extreme pressures. FleetPride is your First Click in Heavy Duty .