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CAT 3CP1231 Solid Shaft Stainless Steel Pressure Washer Pump

CAT 3CP1231 Solid Shaft Stainless Steel Pressure Washer Pump

SKU: 3CP1231


This 2.3 GPM 2000 PSI direct drive triplex positive displacement, reciprocating, plunger pump is constructed of a 316 SS Mainfolds & 316 SS valve assemblies.

In stock

This is a triplex [three plunger rods] direct drive positive displacement, reciprocating, plunger pump, constructed of a 316 SS Mainfolds, 316 SS valve assemblies, solid ceramic plungers and standard NBR [Buna-N] seals and o-rings.


  • Maximum Volume: 2.3 GPM

  • Maximum Discharge Pressure: 2000 PSI

  • Maximum Inlet Pressure: 100 PSI

  • Maximum Pump Speed: 1725 RPM

  • Standard Liquid Temperature: 160 F (Above 130 F call CAT PUMPS for inlet conditions and elastomer recommendations)
  • Bore Diameter: 18 mm

  • Stroke: 7 mm

  • Shaft Diameter: 16.5 mm

  • Solid Shaft

  • Inlet Ports: 2 x 1/2″ NPTF

  • Discharge Ports: 2 x 3/8″ NPTF

  • Pulley Mounting: Either Side

  • Crankcase Capacity: 10 oz.

  • Approximate Weight: 15 lbs.

Please Note: Pump Rails show on image are not included with pump.

Weight 16 lbs
Shaft Diameter

.65 in / 16.5 mm

Max Volume

2.3 GPM

Max Discharge Pressure

2000 PSI

Max Pump Speed

1725 RPM

Max Inlet Pressure

100 PSI

Bore Diameter

.709 in / 18 mm


.276 in / 7 mm

Inlet Port

1/2-14 BSPP-F

Discharge Port

3/8-19 BSPP-F

Standard Temperature

160 F


Stainless Steel




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