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CAT Pumps 4DX29GUIF Triplex Plunger Pump with Unloader and Chemical Injector, 2.9 GPM, 2600 PSI, 3450 RPM

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10.70 lbs
Usually Ships in 2 Weeks
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Compact direct-drive triplex plunger pump, featuring a brass manifold. Built with high-pressure seals and concentric solid ceramic plungers for a true wear surface and extended seal life. High quality economically priced, intermittent-duty gas pressure washer pump.

Pressure Washing

Pressure Washing


Technical Specifications

Max PSI: 2000
Bore: 16 millimeter
Crankcase Capacity: 8.5 ounce
Inlet Port: 3/8 inch
Max Temperature: 140 degrees F
Stroke: 1.9
Shaft Diameter: 5/8 inch
Max GPM: .3
RPM: 3450

Product Description

CAT Compact Direct Drive Plunger Pump 2.9GPM 2600PSI

The CAT Pumps 4DX29GUIF Triplex Plunger Pump is a compact, reliable pump featuring an integral regulating unloader and fixed chemical injector. Triplex plunger design provides a smooth liquid flow at mid-range PSI. Well suited for intermittent duty, features a garden hose inlet connection and standard NBR (Buna-N) seals and O-rings.

Dimensions: 8.03" x 7.72" x 6.29"


  • Compact flange mount permits easy, direct mounting to most gas engines.
  • Integral regulating unloader with built-in bypass ensures system pressure control and pump protection.
  • Fixed chemical injector aids in cleaning flexibility.
  • Swivel garden hose fitting provides easy inlet connection.
  • Includes crankcase oil.
  • Pump comes standard with NBR seals.


  • Maximum Flow: 2.9 GPM
  • Maximum Pressure: 2600 PSI
  • Maximum Speed: 3450 RPM
  • Maximum Fluid Temperature: 140° F
  • Inlet Port: 3/4" GHF
  • Discharge Port: 3/8" NPT-M
  • Bore: 16 millimeter
  • Stroke: 5.9 millimeter
  • Shaft Diameter: 19 millimeter
  • 14 oz crankcase oil capacity


  • Car Washes
  • Prep Stations
  • Auto Detailing
  • General Exterior Cleaning

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