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CAT Pump 57 7 Frame Plunger Pump, 4.5 GPM, 4000 PSI, 1285 RPM

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31.50 lbs
Usually Ships in 2 Weeks
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Industrial duty triplex positive displacement reciprocating plunger pump. Unchromed forged brass manifold. Flow up to 4.5 GPM, at pressures up to 4000 PSI. Brackets not included!

Technical Specifications

Bore: 18 millimeter
Crankcase Capacity: 25 ounce
Stroke: 18.5 millimeter
Shaft Diameter: 24 millimeter
RPM: 1285
Max Temperature: 160 degrees F
Max PSI: 4000
Max GPM: 4.5
Inlet Port: 1/2 inch

Product Description

High-Pressure Cat Pump

This CAT Pump 57 high pressure triplex plunger pump delivers high efficiency and low pulsation. Stacked stainless steel valve assemblies and solid ceramic plungers provide for great durability. Great option for high-pressure wash applications, at your car wash or as part of pressure washing services!

Dimensions: 13.94" x 8.19" x 6.42"


  • Durable V-Packings are lubricated and cooled by the liquid being pumped.
  • Pre-set Lo-Pressure Seals provide secondary protection against external leaks and require no packing adjustment.
  • Special high-density, polished, concentric plungers provide a true wear surface and extended seal life.
  • Stacked stainless steel valve design for long life and easy servicing.
  • Standard NBR seals


  • Max GPM: 4.5 GPM
  • Max Pressure: 4000 PSI
  • Max Temperature: 160° F
  • RPM: 1285 RPM
  • Inlet Port: (2) 1/2" NPT-F
  • Outlet Port: (2) 3/8" NPT-F

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