Ensure your vehicle is Ready for the Road Ahead with enhanced hydraulic capabilities, with the Muncie PK Series 42 GPM 13-Tooth Hydraulic Gear Pump. Due to sophisticated design, this replacement pump is able to utilize a series of gears and motors to convert power from an engine into hydraulic energy. Constructed with an ultra-durable build to tolerate extreme pressures. FleetPride is your First Click in Heavy Duty .