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CAT Pumps 650 Brass Head 7 GPM 15 Frame Plunger Pump - 3000 PSI

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35.00 lbs
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Fifteen frame plunger pump with a steel crankcase and a brass manifold. 3/4" x 1/2" F ports. Max 7 GPM and 3000 PSI. Brackets not included.

Technical Specifications

Max GPM: 7
Max PSI: 3000
RPM: 1000
Stroke: 30 millimeter
Shaft Diameter: 30 millimeter
Bore: 20 millimeter
Max Temperature: 160 degrees F
Inlet Port: 3/4 inch
Crankcase Capacity: 42 ounce

Product Description

1000 RPM Belt Drive Triplex Plunger Pump

This CAT Pumps 650 model pump is rated for a flow rate up to 7 gpm flow at 3000 PSI pressure. The 650 brass triplex pump includes 3/4" female NPT inlet ports and 1/2" female NPT outlet ports. Use this strong, lightweight, high-efficiency triplex pump for car wash systems, desalination, chemical injection, and more!

The 650 CAT model is a triplex type plunger pump with a 304 stainless steel housing, solid ceramic plungers, and a forged brass manifold that is strong and corrosion-resistant. CAT triplex pumps are precisely engineered and designed for smoother liquid flow, extended life, and unmatched durability -even at high pressure levels.


  • 7 GPM flow rate
  • 3000 PSI maximum pressure
  • 100-3000 PSI pressure range
  • 30mm stroke (1.81")
  • 30mm shaft (1.81")
  • 42 oz. crankcase capacity
  • 1000 RPM
  • 3/4" NPT-F inlet port
  • 1/2" NPT-F outlet port
  • 160°F maximum liquid temperature
  • 15 frame style
  • -5 to 60 PSI inlet pressure range


  • 16.28" x 12.99" x 6.44"


Superior Design:

  • Triplex plunger design provides smoother liquid flow.
  • Hi-Pressure Seals are completely lubricated and cooled by the liquid being pumped.
  • Inlet and discharge valve assemblies interchange for easier maintenance.
  • Lubricated Lo-Pressure Seals provide double protection against external leakage.
  • Oil bath crankcase assures optimum lubrication.
  • Close tolerance concentricity of the ceramic plunger maximizes seal life.
  • Optional Belt Drive or Motorized versions offer system flexibility.

Quality Materials:

  • Precision design 304 stainless steel valves and seats are hardened and polished for ultimate seating & extended valve life.
  • Brass manifold is strong and corrosion resistant.
  • Special concentric, high-density, polished, solid ceramic plungers provide a true wear surface and extended seal life.
  • Specially formulated, Hi-Pressure Seals offer unmatched performance & seal life.
  • Die cast aluminum crankcase provides high strength, minimum weight and precision tolerance control.
  • Chrome crankshaft gives unmatched strength and surface hardness.
  • Oversized crankshaft bearings with greater capacity mean longer bearing life.

Easy Maintenance:

  • Wet-end is easily serviced without entering crankcase, requiring less time and effort.
  • Preset packings mean no packing gland adjustment is necessary, reducing maintenance costs.

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