JCB pump

Parker 20/925579 JCB 3CX Twin Hydraulic Gear Pumps 36 + 26 CC/REV

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.

ParameterSpecification
Part Number20/925579 (Genuine Parker / JCB)
ApplicationMain hydraulic pump for JCB loaders and backhoe loaders (3CX, 4CX)
Pump TypeTwin hydraulic gear pump (dual section)
DisplacementFront section: ~36 cc/rev
Rear section: ~26 cc/rev
RotationClockwise (viewed from shaft end)
Shaft1″ SAE splined shaft, 15 tooth, 16/32 pitch
Mounting FlangeSAE B 2-bolt flange
Inlet PortSingle 2″ SAE flange inlet
Outlet PortsFront: 1 1/16″-12 UNF
Rear: 7/8″-14 UNF
Max Working PressureFront pump: ~250 bar
Rear pump: ~275 bar
Weight~26 kg



Description

Introduction to JCB Parker Hydraulic Gear Pump 20/925579 Series

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.


Function and Technical Parameters of Dual Gear Pumps

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.

Key Functions of a Dual Gear Pump

  • Stable and continuous hydraulic oil flow

  • High pressure output for mobile hydraulic systems

  • Independent control of dual circuits

  • Compact structure saving installation space

Typical Technical Parameters

  • 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.


Applications of JCB Parker Dual Gear Pumps

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.


Advantages and Limitations of Parker Hydraulic Gear Pumps

Advantages of Parker Gear Pumps

  • Proven brand reliability

  • Stable hydraulic performance

  • Consistent manufacturing quality

  • Wide market recognition

Limitations of Parker Gear Pumps

  • 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 Dual Gear Pump – Perfect Replacement for JCB Parker 20/925579 Series

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.


Advantages of Choosing HENGYUHANG Dual Gear Pumps

✔ Stable Performance and High Efficiency

HENGYUHANG dual gear pumps provide stable flow, reliable pressure, and excellent volumetric efficiency under continuous operation.

✔ High-Quality Materials and Manufacturing

Precision-machined alloy steel gears, optimized housing design, and strict quality control ensure long service life and strong wear resistance.

✔ Full Compatibility with JCB Parker Systems

The HENGYUHANG dual gear pump is engineered as a direct replacement for JCB Parker hydraulic gear pump applications, ensuring seamless integration.

✔ Faster Delivery and Flexible Supply

Compared with original Parker pumps, HENGYUHANG offers shorter lead times and more flexible production capacity.

✔ Cost-Effective Hydraulic Solution

Customers benefit from competitive pricing while maintaining the same functional performance, reducing total operating and maintenance costs.


Why Choose HENGYUHANG Dual Gear Pump Replacement

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 CodeJCB CodeJCB CodeJCB Code
7049532007333/C523420/92559220/925338
20/925732333/G539220/92535720/925591
20/90310020/9255817029520007332/F9032
20/9253397441N702912004720/925586
7029120023702912000770291200097029120005
70291200787029120079702912112020/918300
332/F903020/925578919/7500220/925580
332/F9028333/G5393704952000620/925579
20/911200702912002220/92536620/902900
333/G539120/92558820/903300333/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.

JCB GEAR PUMP 3X 4X

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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


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HENGYUHANG Power Technology Co., LTD

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No. 173, Xiacuo, Sihuang Village, Xiamei Town, Nan 'an City, Fujian Province

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