Description
The Cat Pumps Model 5CP5120 is a high-performance, industrial triplex plunger pump designed for high-pressure applications. Known for its exceptional durability and serviceability, it is a favorite in the car wash, pressure washing, and industrial manufacturing sectors where consistent 3000 PSI performance is required.
Technical Specifications
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Flow Rate: 5.0 GPM (18.9 LPM)
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Pressure Range: 100 to 3000 PSI (7 to 207 bar)
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Speed: 1415 RPM
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Shaft Diameter: 20 mm (Solid Shaft)
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Inlet Port: 1/2″ NPT(F)
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Discharge Port: 3/8″ NPT(F)
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Max Liquid Temp: 160°F (71°C)
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Crankcase Capacity: 17 oz.
Key Features
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Precision Plunger Action: Utilizes triplex (three) solid ceramic plungers to provide a smooth, near-pulsation-free liquid flow.
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Belt or Gearbox Drive: Designed for indirect drive, allowing the pump to operate at a lower RPM than the motor, which significantly reduces heat and extends the life of the seals and bearings.
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Advanced Seal Design: Features Cat Pumps’ proprietary high-pressure seals and a “Wick” design low-pressure seal that provides essential lubrication to the plungers.
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Forged Brass Manifold: The heavy-duty manifold is designed to handle extreme pressure cycles and offer excellent resistance to standard cleaning chemicals.
Essential Service Kits
To keep the 5CP5120 operating at factory specifications, the following genuine Cat Pumps kits should be used for routine maintenance:
| Kit Description | Part Number | Quantity Required |
| Seal Kit | 33628 | 1 Kit per pump |
| Valve Kit | 33062 | 2 Kits required for full service |
| Ceramic Plunger | 46841 | 3 required for full replacement |
| Crankcase Oil | 6107 | ISO 68 Non-Detergent (21 oz bottle) |




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