Skip to Main Content

CAT Pumps 57RS Plunger Pump with Reverse Shaft, 4.5 GPM, 4000 PSI

Mfr. Model #:
KR Part #:
31.50 lbs
Usually Ships in 2 Weeks
Now Only!

This is a 7-frame triplex plunger pump with a reverse shaft. The pump features low pressure dual v-packings and an unchromed brass manifold. Note: picture is representative of the CAT Pumps 57 series. This model has a reverse shaft.


Technical Specifications

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

Product Description

7 Frame Plunger Pump - Reverse Shaft

This pump features pre-set, low-pressure seals for secondary protection against external leaks. The seals require no packing adjustment. The dual v-packings are lubricated and cooled by pumped liquid. 

Known as the pump with 9 lives for outstanding durability and longevity, CAT Pumps is a brand car wash operators can count on. This triplex plunger pumps withstands the harsh conditions of the commercial car wash.

Dimensions: 13.93" x 8.2" x 6.41"

  • Reverse shaft
  • Triplex design (three plunger rods) 
  • Unchromed forged brass manifold
  • 304 stainless steel valve assemblies
  • Solid ceramic plungers
  • Standard NBR (Buna-N) seals and O-rings
  • Positive displacement, reciprocating pump
  • Maximum flow: 4.5 GPM
  • Maximum pressure: 4000 PSI
  • 1285 RPM

Product Reviews

Frequently Asked Questions