HENGYUHANG hydraulic gear pumps are engineered as a reliable and cost-effective replacement for the 20/902900 gear pump, with matched mounting dimensions and operating parameters for direct installation. Our products provide dependable performance and long service life, making HENGYUHANG an ideal alternative solution for JCB 202 hydraulic pump replacement needs.
| Parameter | Specification |
|---|---|
| Part Number | 20/925579 (Genuine Parker / JCB) |
| Application | Main hydraulic pump for JCB loaders and backhoe loaders (3CX, 4CX) |
| Pump Type | Twin hydraulic gear pump (dual section) |
| Displacement | Front section: ~36 cc/rev |
| Rear section: ~26 cc/rev | |
| Rotation | Clockwise (viewed from shaft end) |
| Shaft | 1″ SAE splined shaft, 15 tooth, 16/32 pitch |
| Mounting Flange | SAE B 2-bolt flange |
| Inlet Port | Single 2″ SAE flange inlet |
| Outlet Ports | Front: 1 1/16″-12 UNF |
| Rear: 7/8″-14 UNF | |
| Max Working Pressure | Front pump: ~250 bar |
| Rear pump: ~275 bar | |
| Weight | ~26 kg |
The JCB Parker hydraulic gear pump 20/925579 series is widely used in construction and mobile hydraulic equipment. As a well-known solution supplied by Parker for JCB machines, this dual gear pump is designed to deliver stable hydraulic flow, reliable pressure output, and long-term performance under demanding working conditions.
The JCB Parker hydraulic gear pump is commonly applied in loaders, excavators, backhoe loaders, and other heavy-duty construction machinery, where compact design and dependable operation are essential.
However, with increasing maintenance costs and longer lead times, many customers are looking for a cost-effective dual gear pump replacement that maintains the same performance level.
A dual gear pump consists of two independent pumping sections integrated into one housing. This design allows the pump to supply oil to two hydraulic circuits simultaneously or provide higher combined flow in compact systems.
Stable and continuous hydraulic oil flow
High pressure output for mobile hydraulic systems
Independent control of dual circuits
Compact structure saving installation space
Pump type: External dual gear pump
Working pressure: Up to 200–250 bar (application dependent)
Speed range: 800–3000 RPM
Displacement: Dual-section matched to system requirements
Mounting: Standard flange and shaft interfaces
Medium: Hydraulic oil
These parameters make the dual gear pump ideal for construction machinery, agricultural equipment, and industrial hydraulic power units.
The JCB Parker hydraulic gear pump 20/925579 series is widely used in:
Construction machinery
Mobile hydraulic systems
Agricultural equipment
Industrial hydraulic units
Its stable performance and brand reputation make it a common choice for OEM applications.
Proven brand reliability
Stable hydraulic performance
Consistent manufacturing quality
Wide market recognition
High purchase and replacement cost
Long delivery lead time
Limited flexibility for customization
Higher maintenance expense for aftermarket users
Due to these factors, many equipment owners and distributors are seeking a reliable Parker hydraulic gear pump replacement solution.
HENGYUHANG specializes in manufacturing high-quality hydraulic dual gear pumps that can perfectly replace JCB Parker hydraulic gear pump 20/925579 series.
The HENGYUHANG dual gear pump is designed to match:
Mounting dimensions
Shaft and flange standards
Hydraulic performance parameters
System compatibility
This ensures direct installation without system modification, making it an ideal replacement dual gear pump.
HENGYUHANG dual gear pumps provide stable flow, reliable pressure, and excellent volumetric efficiency under continuous operation.
Precision-machined alloy steel gears, optimized housing design, and strict quality control ensure long service life and strong wear resistance.
The HENGYUHANG dual gear pump is engineered as a direct replacement for JCB Parker hydraulic gear pump applications, ensuring seamless integration.
Compared with original Parker pumps, HENGYUHANG offers shorter lead times and more flexible production capacity.
Customers benefit from competitive pricing while maintaining the same functional performance, reducing total operating and maintenance costs.
Choosing HENGYUHANG means choosing a professional hydraulic gear pump manufacturer focused on performance, reliability, and customer value. The HENGYUHANG dual gear pump replacement for JCB Parker hydraulic gear pump 20/925579 series delivers:
Reliable hydraulic output
Long service life
Excellent system compatibility
Lower ownership cost
For construction machinery, mobile hydraulic equipment, and industrial applications, HENGYUHANG dual gear pumps are a proven and trusted alternative to original Parker gear pumps.
| JCB Code | JCB Code | JCB Code | JCB Code |
|---|---|---|---|
| 7049532007 | 333/C5234 | 20/925592 | 20/925338 |
| 20/925732 | 333/G5392 | 20/925357 | 20/925591 |
| 20/903100 | 20/925581 | 7029520007 | 332/F9032 |
| 20/925339 | 7441N | 7029120047 | 20/925586 |
| 7029120023 | 7029120007 | 7029120009 | 7029120005 |
| 7029120078 | 7029120079 | 7029121120 | 20/918300 |
| 332/F9030 | 20/925578 | 919/75002 | 20/925580 |
| 332/F9028 | 333/G5393 | 7049520006 | 20/925579 |
| 20/911200 | 7029120022 | 20/925366 | 20/902900 |
| 333/G5391 | 20/925588 | 20/903300 | 333/G5390 |
JCB gear pumps are an essential part of JCB machinery, ensuring efficient hydraulic power for a variety of applications. With their robust design and precision engineering, JCB gear pumps deliver reliable performance, contributing to the functionality of JCB excavators, loaders and other equipment. Whether powering excavation, lifting or maneuvering hydraulic systems, JCB gear pumps play a key role in increasing the overall productivity and versatility of JCB machinery on the job site.


HENGYUHANG Company is a set design, production, sales in one of the hydraulic components production company, the company has advanced hydraulic components manufacturing technology and technology, the use of high-precision equipment CNC machining center, gear hot processing automatic production line, , automatic heat treatment multi-purpose furnace, single-piece flow assembly line, automatic hydraulic pump performance test bench. Intelligent equipment adopts automatic unmanned production, and realizes online measurement to ensure product consistency and reliability, intelligent system uses ERP, MES management software, improve production efficiency, and achieve product traceability.
Hengyuhang Power Technology produces and sells external gear pumps, hydraulic synchronous motors, multi-pump units, gear pumps with built-in valves, and custom valve blocks. Meanwhile, according to the specific needs of customers, we provide a variety of products with special specifications.And it can also be used as a substitute for other products (such as Rexlex, Danfoss, MARZOCCHI, Parker, RONZIO, Atos, Buchet, ECKERLE, CONCENTRIC, HYADC, JIHOSTROJ, Hydraulic, SDH, VIVOLO, ARGO-HYTOS, HESPER, HPLPA, HPI, DUPLOMATIC, ROQUET, BODEN,PERMCOP, Caproni, DUPLOMATIC, HIDRAULICA, SETTIMA, SALAMI, HONOR, SHIMADZU, GRH, Brevini, Galtech, BONDIOLI, REXROTH-SIGMA, BLUEASCEND, RISUNY, SUMITOMO, HYDROMAX, SCENERY, REXPOWER, CML, HOERBIGER, SUNNY, HYTEK, Hydro-pack, )
HENGYUHANG also sells a wide range of other international brands of hydraulic pumps, hydraulic valves, hydraulic motors, hydraulic cylinders, hydraulic oil seals, hydraulic equipment and accessories, and has high-quality overseas ordering channels
HENGYUHANG products are mainly used in the supporting services of industries such as automobiles, construction machinery, agricultural machinery, aerial work platforms, hydraulic systems, logistics handling vehicles, new energy vehicles, metallurgical machinery, petroleum machinery, machine tools, and wind powe
No. 173, Xiacuo, Sihuang Village, Xiamei Town, Nan 'an City, Fujian Province