332/F9032 Parker Twin Gear Pump 37+37cc for JCB 3CX 4CX

Product Overview

The 332/F9032 (also referenced as 322/F9032 in some listings) is a Parker tandem external gear pump designed for JCB 3CX and 4CX backhoe loaders. Featuring precision gears and reliable bearings, it delivers stable dual-circuit flow output and is manufactured to exact OEM specifications. Mounting flange, spline shaft, inlet and outlet ports offer 100% drop-in interchangeability for direct replacement of original JCB pumps (including related numbers 7029120052, 7029120055 and 20/925744) without system modification. Every unit undergoes 100% simulated duty-cycle testing to ensure efficient and reliable performance under demanding digging and loading conditions.

Technical Specifications 

• Full Model Code: 332/F9032 (also 322/F9032, 332F9032)
• Related Interchange Numbers: 7029120052, 7029120055, 20/925744
• Pump Type: Parker tandem external gear pump
• Front Pump Displacement: 37 cm³/rev
• Rear Pump Displacement: 37 cm³/rev
• Rotation: Clockwise (looking from shaft end)
• Shaft: 1” diameter, 15-tooth SAE splined shaft (16/32 pitch)
• Mounting Flange: SAE B 2-hole
• Inlet: Single 2” SAE flange
• Outlets: 1 1/16”-12 UNF threaded for both front and rear pumps
• Max. Input Shaft Torque: 460 Nm
• Approximate Weight: 26 kg
• Compatible Machines: JCB 3CX, 3CXS, 3CX-T, 4CX and various PC/servo control versions

Key Technical Advantages

• High-precision gear machining and optimized tooth profile deliver high volumetric efficiency and low pressure pulsation; tandem design simultaneously serves main and auxiliary circuits.
• SAE B standard flange and 15-tooth spline shaft provide true drop-in interchangeability, simplifying installation and reducing downtime costs.
• Robust housing and high-quality bearings support frequent load changes and shock loads typical of construction equipment, ensuring long service life.
• Compact tandem configuration saves installation space while providing high flow output suitable for 100HP-class backhoe loader hydraulic systems.
• Full series subjected to rigorous simulated duty-cycle and endurance testing for consistent performance across digging, loading and multi-function operations.

Application Areas

Main hydraulic system of JCB 3CX, 3CXS, 3CX-T and 4CX series backhoe loaders (especially Precision Control / servo versions) for boom, bucket, swing and auxiliary functions.

Expert Maintenance Tips

Ensure proper flange and shaft alignment during installation; use matched spline couplings to avoid additional radial or axial loads. Maintain fluid cleanliness at ISO 4406 19/17/13 or better and use anti-wear hydraulic oil with regular filter changes. Fully bleed the system and confirm good suction conditions before initial start-up. Periodically inspect shaft seals and port seals; avoid dry running. Operate at low speed during cold starts to establish lubrication. Always verify rotation direction and port configuration when replacing to ensure exact match with the original machine.