Comet ZWD4040G Complete Ready To Go Pump Replacement1 Inch shaft 4000psi 4.0gpm

Comet ZWD4040G Complete Ready To Go Pump Replacement 1 Inch shaft 4000psi 4.0gpm

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Comet ZWD4040 G "Ready to Go" pressure washer pump assembly. This replacement pump fits most 9 to 15 hp engines with a 1" horizontal shaft.


  • GPM: 4.0
  • PSI: 4000
  • Engine Flange: 9-15hp Gas Horizontal
  • Triplex Pump: Industrial Duty
  • Thermal Relief Valve Included
  • Unloader: External

External unloader valves can have the bypass run to the ground or back to a tank to extend the pump life.

"Ready To Go" pumps are fully plumbed and include a garden hose inlet, quick connect outlet, low pressure soap injector, and the best matching unloader valve.

Professional installation is recommended.


Pump: 5 year (triplex) manufacturers limited warranty.