The Cat Pumps 4DX Series high-pressure pump comes with premium DC electric motors for on-the-go pressure wash power. The pump and motor assemblies provide 1 to 3 gpm at pressures from 400 to 1,000 psi and operate on any standard direct current source. Convenient integrated unloaders accurately set and maintain system pressure. Reliable and easy to service, the built-in unloaders divert water flow during bypass, reducing load on pump and motor and increasing system life. Crankcase oil is prefilled so pumps are ready to use out-of-the-box. Multiple build-to-order configurations are available. 763-780-5440; www.catpumps.com.