High-Output Triplex Plunger Pump for Demanding Industrial Systems

The Giant GP7655 hydraulic drive pump (80 GPM @ 2500 PSI) is engineered for high-volume, high-pressure industrial applications requiring durability, efficiency, and continuous-duty reliability. Designed with a hydraulic integral mount drive system, this triplex plunger pump delivers powerful flow capacity while maintaining stable pressure output in severe operating environments.

Featuring a nickel-plated spheroidal cast iron manifold and solid ceramic plungers, the GP7655 provides superior wear resistance, corrosion protection, and extended service intervals. The integrated oil cooler assembly enhances thermal control, protecting bearings, seals, and crankshaft components during sustained operation.

This configuration is ideal for operators requiring increased cutting and flushing power compared to lower-PSI variants.

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Performance Specifications

• Maximum Flow Rate: 80 GPM

• Maximum Operating Pressure: 2500 PSI

• Pump Type: Triplex Plunger

• Drive Type: Hydraulic Integral Mount

• Upper Discharge Port Diameter: 1-1/4" NPT

• Lower Inlet Port Diameter: 2-1/2" NPT

• Oil Filler Plug Thread: M64 x 2

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Core Design Features

• Heavy-duty crankcase power end

• Precision-balanced crankshaft

• Taper roller bearings

• Integrated oil cooling system (K1–K20 assembly)

• Stainless steel suction and discharge valves

• Gear drive system with 2.4 gearbox gear set

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Ideal Applications

• Sewer jetting trucks

• Hydro excavation systems

• Municipal wastewater maintenance

• Industrial wash-down systems

• Oilfield and high-volume fluid transfer

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Built for Continuous Industrial Duty

The 80 GPM / 2500 PSI configuration provides increased pressure capability while maintaining high-volume throughput. For operations requiring both aggressive cleaning power and reliable flow output, the GP7655 delivers long-term performance and structural durability.