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CAT 2SF20ES Hollow Shaft Pressure Washer Pump



This 2.0 GPM 2000 PSI 5/8″ Hollow Shaft reciprocating, plunger pump is constructed of a 316SS manifold, 316SS valve assemblies, and solid ceramic plungers.

This is a triplex [three plunger rods] positive displacement, reciprocating, plunger pump, constructed of a 316SS manifold, 316SS valve assemblies, solid ceramic plungers and standard NBR [Buna-N] seals and o-rings. This is a hollow-shafted pump designed to bolt directly to a c-face electric motor, providing easy, compact installation.


  • Maximum Volume: 2.0 GPM
  • Maximum Discharge Pressure: 2000 PSI
  • Maximum Inlet Pressure: 100 PSI
  • Maximum Pump Speed: 3450 RPM
  • Standard Liquid Temperature: 160 F (Above 130 F call CAT PUMPS for inlet conditions and elastomer recommendations)
  • Bore Diameter: 18 mm
  • Stroke: 3.1 mm
  • Shaft Diameter: 11 mm
  • 5/8″ Hollow Shaft
  • Inlet Port: 3/8″ FPT
  • Discharge Ports: 2 x 3/8″ NPT
  • By-Pass Port: 1/4″ NPT
  • Approximate Weight: 11 lbs.
Weight 12 lbs
Shaft Diameter

Max Volume

Max Discharge Pressure

Max Pump Speed

Max Inlet Pressure

Bore Diameter


Max Fluid Temp.

Inlet Port

Discharge Port

By-Pass Port

Standard Temperature


Hollow Shaft



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