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A German-made reciprocating triplex plunger pump.

Aluminum crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals (with fabric reinforcing); stainless steel valves and forged brass manifold.

Gearbox and bell housings (to connect to gasoline, diesel, electric or hydraulic drive) and pulsator valve.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to

Specification US Metric
Flow4 GPM15.1 L/min
Maximum Discharge Pressure4000 PSI280 bar
Crankshaft Speed1450 RPM
Power11.5 HP8.6 KW
Intermittent Flow4.8 GPM18.2 L/min
Intermittent Discharge Pressure3250 PSI224 bar
Intermittent Crankshaft Speed1750 RPM
Intermittent Power Consumption10.8 HP8.1 kW
Max Temperature140 °F60 °C
Inlet Port Size(2) 3/8" BSP, (1) 1/2" BSP
Discharge Port Size(2) 3/8" BSP
Plunger Diameter0.63 in.16 mm
Stroke0.71 in.18.1 mm
Crankshaft Diameter0.94 in.24 mm
Crankshaft RotationTop of Pulley Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US12.5 fl. oz. 0.37 L
Weight21.1 lbs.8.8 kg
Volumetric Efficiency0.96
Mechanical Efficiency0.84
NPSHR23 Ft.-head7.0 mWs
Manifold Material Forged Brass
Crankcase Material Aluminum
Plunger Material Solid Ceramic Oxide
Valve Material High Grade Stainless Steel
Seal Material Nitrile with Fabric Reinforcing
The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.
Plunger Packing Kit – Part #09167
31 & 50 07767 Automatic Seal Ring 6
32 07768 Support Ring 3
40 07489 O-Ring 6
49 01009 O-Ring 1
Valve Assembly Kit – Part #09168
34 07492 Tension Cap 6
35 07906 Valve Spring 6
36 05542 Valve Plate 6
37 05541 Valve Seat 6
38 07770 O-Ring 6
Oil Seal Kit – Part #09202
26 07206 Radial Shaft Seal 3

Horsepower Specifications

RPM GPM 2000 PSI 3000 PSI 3250 PSI 4000 PSI
910 2.5 3.4 5.1 5.7 6.8
1025 2.8 3.8 5.8 6.2 7.7
1190 3.3 4.5 6.8 7.3 9.0
1305 3.6 4.9 7.4 8.0 9.9
1450 4.0 5.5 8.2 8.9 11.0
1750 4.8 6.6 9.9 10.7


Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • P54W Exploded View
  • P54W Parts List
  • P54W Torque Specifications


Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • P54W Installation Instructions
  • P54W Repair Instructions
  • Troubleshooting Guide

Sample Pump

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For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.

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