What is the Triplex Pump Used with Generac Pressure Washers?

The triplex pump is field-serviceable and features a brass head allowing it to last four times longer than aluminum axial cam pumps. Triplex pumps are only available on Generac's professional series of water pumps.

  • Apr 3, 2023
  • Knowledge

Title
What is the Triplex Pump Used with Generac Pressure Washers?
URL Name
What-is-the-Triplex-Pump-Used-with-Generac-Pressure-Washers

Public Answer
The triplex pump is a water pump with a brass head used on Generac's professional series pressure washers. 

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A. Pump oil dipstick
B. Garden hose connection (inlet)
C. Thermal relief valve
D. Adjustable unloader valve
E. Siphon hose port (detergents
F. High-pressure hose connection (Quick Connect)
 

Triplex Pump Facts

  • Triplex pumps can be rebuilt.
  • Triplex pumps last four times longer than axial cam pumps.
  • Triplex pumps require routine oil changes and checking the oil.
  • Triplex pumps feature an adjustable unloader valve
    • Adjusts pump pressure
    • Preset at the factory to achieve the highest pressure
    • Turn the pressure control knob counterclockwise (-) to decrease the pressure
    • Turn the pressure control knob clockwise (-) to increase output pressure

Does My Pressure Washer Use This Pump?

This pump is used in all current model professional series pressure washers. Consult your spec sheet or owner's manual to verify the pump used in your pressure washer: How Do I Find the Spec Sheet and User Manual for My Pressure Washer on Generac.com?
 
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