CAT Pumps 45G1 with 5 frame plunger pump

CAT Pumps 45G1 Pump
BrandCAT Pumps
Model Code 45G1
Model Info


  • Triplex plunger design
  • Lubricated v-packings and low-pressure seals
  • Oil bath crankcase
  • Close tolerance concentricity of the ceramic plunger
  • Optional gearbox pump
  • Precision design 304 stainless steel valves and seats
  • Forged brass manifold
  • Die cast aluminum crankcase
  • Chrome-moly crankshaft
  • Oversized crankshaft bearings


  • Flow: 4.5 GPM
  • Pressure range: 100 to 3500 PSI
  • Inlet pressure range: Flooded to 60 PSI
  • Pump RPM: 1645 RPM
  • Engine RPM (45GI): 3353 RPM
  • Bore: 0.630”
  • Stroke: 0.708”
  • Crankcase capacity: 18 oz.
  • Maximum liquid temperature: 160°F
  • Inlet ports (2): 1/2” NPTF
  • Discharge ports (2): 3/8” NPTF
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