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CAT Pump 67DX39G1I Plunger Pump - 3.9GPM, 4000 PSI

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17.00 lbs
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CAT pump model 67DX39G1I is a triplex positive displacement reciprocating plunger pump. Features brass manifold, 304SS valve assemblies and solid ceramic plungers for durability. Brackets not included, maximum flow of 3.9 GPM with max pressure of 4000 PSI.


Technical Specifications

Crankcase Capacity: 13.5 oz.
Max GPM: 3.9
RPM: 3450
Max PSI: 4000
Inlet Port: 1/2 inch
Max Temperature: 140 degrees F
Bore: 14 millimeter
Stroke: 10.3 millimeter
Shaft Diameter: 25.4 millimeter

Product Description

This triplex reciprocating pump functions with positive displacement. The CAT pump 67DX39G1I plunger pump is constructed with a brass manifold, 304SS valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings. The pump is designed to bolt directly to a c-face electric motor, providing easy, compact installation.

CAT Pump 67DX39G1I

CAT Pumps high-pressure plunger pumps are recognized in the industry as the longest-lasting, most reliable pumps available. This series is useful for a wide variety of pressure washing applications. Hollow-shafted 67DX Series pumps bolt directly to a gas engine with a 1" straight horizontal shaft, providing an easy, compact installation.


  • Triplex plunger design provides a smooth liquid flow.
  • Special concentric, high-density, polished, solid ceramic plungers provide a true wear surface and extended seal life.
  • Built-in flange mount for easy, direct mounting to most gas engines. Eliminates the need for pulleys, belts, gearboxes.
  • Integral Regulating Unloader with built-in by-pass is standard for safety and pressure setting.
  • Stacked stainless steel valve design for long life and easy servicing.
  • Fixed Chemical Injector is standard and mounts directly onto Unloader to provide cleaning flexibility.


  • Max Flow:  3.9 GPM
  • Max Pressure:  4000 PSI
  • Inlet Port Size:  1/2" NPT(F)
  • Discharge Port Size:  3/8" NPT(M)
  • RPM:  3450
  • Drive Type:  Direct
  • Material:  Brass

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