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CAT 4DNX25GSI Direct Drive Plunger Pump 2.5GPM, 3000PSI

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11.80 lbs
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The 4DNX25GSI direct drive plunger pump features a brass manifold and easy-to-service 304 stainless steel stacked valve assemblies. It has solid ceramic plungers and standard NBR (Buna-N) seals and o-rings. 

Technical Specifications

RPM: 3450
Max GPM: 2.5
Inlet Port: 3/4 inch
Max PSI: 3000
Max Temperature: 140 degrees F
Bore: 14 millimeter
Crankcase Capacity: 8.5 ounce
Shaft Diameter: 3/4 inch
Stroke: 6.8 millimeter

Product Description

4DNX25GSI Triplex Plunger Pump

The 4DNX25GSI model is a high quality, intermittent-duty pressure washer pump. It is a flange-mount pump with a 3/4" shaft. The triplex plunger pump design provides a smooth liquid flow. Its ultra-compact, hollow shaft design is ideal for direct mounting to a gas engine.

This direct drive pressure washer pump has specially formulated high pressure seals and concentric solid ceramic plungers for extended seal life. It features a stacked valve design for easy servicing. Other features include a fixed chemical injector for cleaning flexibility and a swivel garden hose fitting for easy inlet connection. An integral pressure unloader with built-in by-pass comes standard to ensure system pressure control and pump protection.

4DNX25GSI Pump Dimensions: 8.03" x 7.73" x 6.51"

4DNX25GSI Pump Specifications:

  • Maximum flow: 2.5 GPM
  • Maximum discharge pressure: 3000 PSI
  • Maximum RPM: 3450 RPM
  • Stroke: 0.268"
  • Inlet pressure range: flooded to 60 PSI
  • Bore: 0.551"
  • Crankcase capacity: 8.5 oz.
  • Maximum liquid temperature: 140 degrees F
  • Inlet port: 3/4" GHF
  • Accessory inlet port: 1/4" NPTF
  • Discharge port with chemical injector: 3/8" NPTM
  • Chemical injection hose barb: 1/4"
  • Shaft diameter (hollow): 3/4"
  • Three plunger rods (triplex design)
  • Works as a replacement to CAT Pumps model # 2SFX25GZ

Related Parts for the 4DNX25GSI pump:

  • 6107 crankcase oil
  • 33962 pop-off valve
  • 6089 pressure gauge
  • 7141 thermal valve
  • 7204.4 inlet filter
  • 36140 gun
  • 7126 quick start valve

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