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5CP2120W Cat Pump 4 GPM, 2500 PSI, 6.9 HP

This CAT Pump 5CP2120W pressure washing pump features concentric, high-density, polished, solid ceramic plungers for longevity and extended seal life. The manifold is made of a high tensile strength W770 alloy for continuous duty. The 100% wet seal design lets pumped liquids cool and lubricate on both sides. In addition, stainless steel valves, seats, and springs provide corrosion-resistance for a long life. 

CAT Pumps have exclusive low-pressure and hi-pressure seals for unbeatable performance. Plus, the press-in style seal case offers excellent alignment, support, and tool-free servicing.

CAT Pumps pressure washing pumps are known as the pumps with nine lives because of their dependability. This triplex plunger pump is designed to deliver smooth, low pulsation flows at a variety of pressures and flow rates.

Pump Dimensions: 10.35 x 10.0 x 5.78" (263 x 254 x 147 mm)


  • Triplex (three plunger rods) design for high efficiency and low pulsation
  • Standard NBR (Buna-N) seals and o-rings
  • Oil-bath crankcase
  • Heat treated valves and seals
  • Solid ceramic plungers
  • Exclusive high-pressure seal design
  • Wet ends can be serviced without entering the crankcase
  • High-pressure seals are lubricated and cooled by the solution being pumped
  • Pre-set low-pressure seals provide secondary protection against external leaks

Pump Applications:

  • Car wash and truck wash
  • Continuous duty, high-pressure washing applications
  • Industrial cleaning, pressure washing, reverse osmosis, water misting, and more

Pump Specs:

  • Inlet Pressure Range: (950 RPM) - 5 to 60 PSI (- 0.35 to 4 BAR)
  • 4 GPM
  • 2500 PSI
  • Rated to 160 degrees Fahrenheit
  • Belt drive
  • Solid shaft

Technical Specs:

  • Bore: 0.787" (20 mm)
  • Stroke: 0.709" (18 mm)
  • Crankcase Capacity: 17 oz. (0.51 L)
  • Max Temperature: 160°F (71°C)
  • Inlet Port: (2) 1/2" NPTF (1/2" NPTF)
  • Shaft Diameter: 0.787" (20 mm)
  • Horsepower: 6.9
  • Max GPM: 4
  • Max PSI: 2500
  • Min PSI: 100
  • RPM: 950

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5CP2120W Cat Pump 4 GPM, 2500 PSI, 6.9 HP

5CP2120W Cat Pump 4 GPM, 2500 PSI, 6.9 HP

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