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A German-made reciprocating triplex plunger pump. Features: 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; solid ceramic plungers; nitrile seals with fabric reinforcing; stainless steel valves and 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
Flow28.3 GPM107 L/min
Maximum Discharge Pressure3625 PSI250 bar
Crankshaft Speed700 RPM
Power73.3 HP54.7 KW
Max Temperature140 °F60 °C
Inlet Port Size(2) 1-1/4" NPT
Discharge Port Size(2) 3/4" NPT
Plunger Diameter1.4 in.36 mm
Stroke2.05 in.52 mm
Maximum Inlet Pressure145 PSI10 bar
Crankshaft Diameter48 mm
Crankshaft RotationTop of Pulley Towards Manifold
Key Width0.55 in.14 mm
Crankshaft MountingEither Side
Crankcase Oil Capacity US1.6 gal 6.0 L
Weight374 lbs.170 kg
Volumetric Efficiency94%
Mechanical Efficiency83%
NPSHR83% Ft.-head
Manifold Material Stainless Steel
Crankcase Material Spheroidal Cast Iron
Plunger Material Solid Ceramic Oxide
Valve Material 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 #09544
38A 13141 O-Ring, Seal Case 6
38B 13142 Support Ring 6
39A 13291 Grooved Ring 3
42 06796 V-Sleeve 6
Valve Assembly Kit – Part #09520
51B 05193 O-Ring 3
51C 04725 Inlet Valve Seat 3
51D 13130 Valve Plate 3
51E 07062-0100 Valve Spring 3
52B 05193 O-Ring 3
52C 04726 Discharge Valve Seat 3
52D 13130 Valve Plate 3
52E 07062-0100 Valve Spring 3
58A 07700 O-Ring 3
58B 07693 Support Ring 3
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
33A 07627 O-Ring 3

Horsepower Specifications

RPM GPM 1000 PSI 1400 PSI 2000 PSI 2500 PSI 3625 PSI
300 11.3 8.1 11.3 16.1 20.2 29.3
400 15.0 10.7 15.0 21.4 26.8 38.8
550 20.8 14.9 20.8 29.7 37.1 53.9
600 22.6 16.1 22.6 32.3 40.4 58.5
650 25.0 17.9 25.0 35.7 44.6 64.7
700 26.4 18.9 26.4 37.7 47.1 68.4
750 28.3 20.2 28.3 40.4 50.5 73.3

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  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • GP7136-5100 Torque Specifications


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  • Giant Industries Limited Warranty

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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