332/G5722 JCB Hydraulic Piston Pump 250Bar

Product Overview

The 332/G5722 is a heavy-duty axial variable displacement piston pump assembly engineered specifically for the high-pressure hydraulic system of JCB 3CX and 4CX backhoe loaders. Serving as a direct replacement compatible with cross-reference models 20/925353, 20/925784, and 20/602100, this unit offers 100% direct drop-in interchangeability with OEM components. Every pump undergoes 100% full-load simulated factory testing prior to dispatch, guaranteeing superior volumetric efficiency, rapid dynamic response, and long service life under severe digging and loading duty cycles.

Technical Specifications

• Primary Model Code: 332/G5722 (Cross-reference: 20/925353, 20/925784, 20/602100)

• Brand Compatibility: JCB

• Equipment Fit: JCB 3CX, 4CX Backhoe Loaders

• Pump Design: Swashplate Axial Variable Displacement Piston Pump

• Displacement: 63 cm³/rev

• Rated Continuous Pressure: 250 bar (3625 psi)

• Peak Operating Pressure: 315 bar (4560 psi)

• Maximum Drive Speed: 2200 rpm

• Control Logic: Load Sensing (LS) & Pressure Compensator (PC)

• Unit Weight: Approx. 38 kg

Key Technical Advantages

• Micro-Finished Bimetallic Tribology: Cylinder block and piston friction pairs utilize high-strength nitrided alloy steel paired with sintered bronze valve plates to eliminate internal bypass leakage and resist thermal galling.

• Precision Load-Sensing Efficiency: Features high-response LS control valves that dynamically regulate output flow to match real-time backhoe loader implement demands, minimizing heat dissipation and engine fuel consumption.

• 100% Direct Drop-in Fit: Built strictly to OEM JCB mounting specifications, flange dimensions, shaft splines, and port interfaces, allowing effortless plug-and-play installation without plumbing changes.

• 100% Factory Simulated Testing: Dynamically tested under full continuous pressure and rated RPM on automated test benches to verify zero external leakage and optimal volumetric performance.

Application Areas

• JCB Backhoe Loaders: Primary hydraulic main pump for JCB 3CX, 4CX, and 5CX loader/excavator equipment.

• Construction Machinery: Universal high-pressure hydraulic power source for wheeled excavators and loaders utilizing the JCB hydraulic framework.

Expert Maintenance Tips

Flush the main hydraulic circuit thoroughly and replace all fluid filters prior to mounting the pump. Maintain oil cleanliness strictly at ISO 18/16/13 (NAS Class 8) or cleaner using ISO VG 46/68 anti-wear hydraulic oil. Always pre-fill the pump housing completely with clean hydraulic fluid through the highest case drain port before initial start-up, cranking the engine briefly without starting to bleed air and prevent dry friction damage to bearings and valve surfaces.