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A German-made reciprocating triplex plunger pump.

Spheroidal cast iron crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; stainless plungers with hardened metal coating; nitrile with fabric reinforcing; stainless steel valves; machined stainless steel manifold.

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
Flow23.5 GPM88.9 L/min
Maximum Discharge Pressure3045 PSI210 bar
Crankshaft Speed800 RPM
Power49.4 HP36.8 KW
Max Temperature140 °F60 °C
Inlet Port Size(2) 1-1/4" BSP
Discharge Port Size(2) 2-1/2" BSP
Plunger Diameter1.26 in.32 mm
Stroke1.89 in.48 mm
Crankshaft Diameter42 mm
Crankshaft RotationTop of Pulley Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US1.1 gal 4.2 L
Weight309 lbs.140 kg
Manifold Material Stainless Steel
Crankcase Material Spheroidal Cast Iron
Plunger Material Solid Ceramic Oxide
Valve Material Duplex 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 #09319
41A 07721 O-Ring 3
41B 13223 Support Ring 3
41C 12055 O-Ring 6
41D 07693 Support Ring 6
44 06096 Sleeve 6
45 13360 Leakage Seal 3
Valve Assembly Kit – Part #09320
51A 12564 Valve Seat 6
51B 12565 Valve Plate 6
51C 12566 Valve Spring 6
52 05166 O-Ring 6
57 05167 O-Ring 3
Oil Seal Kit – Part #09304
32 06118 Radial Shaft Seal 3
32A 13215 Grooved Ring 3
33A 07721 O-Ring 3

Horsepower Specifications

RPM GPM 1000 PSI 1500 PSI 2500 PSI 3045 PSI
400 11.8 8.1 12.2 20.3 24.7
500 14.7 101 15.2 25.3 30.8
600 17.6 12.2 18.2 30.4 37.0
700 20.6 14.2 21.3 35.5 43.2
800 23.5 16.2 24.3 40.5 49.4

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • GP6132-4000 Torque Specifications


Documents open in new window/tab.

  • Pump Assembly Instructions
  • Giant Limited Warranty
  • 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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