PGP620B0360CE1H3WS7*D5C-620A0290XB1D5B1B1 Parker Pump 275bar

Product Overview

The PGP620B0360CE1H3WS7*D5C-620A0290XB1D5B1B1 is a tandem cast iron external gear pump from the Parker Hannifin PGP620 series. This model is a JCB construction equipment OEM custom configuration (JCB No. 332/G7135), widely used on JCB 3CX/4CX backhoe loaders and other equipment. It corresponds to Parker part number 7029120005.

The primary section features a displacement of 36.0 cm³/rev (“0360” suffix), while the secondary section delivers 29.0 cm³/rev (“620A0290” suffix). Engineered with Parker’s signature two-piece interlocking cast iron construction, the pump features journal bushings and pressure-balanced thrust plates for exceptional durability, high efficiency, and long service life.

Every unit is manufactured to original equipment specifications, ensuring 100% drop-in interchangeability with genuine Parker PGP620 series pumps without any system modifications. Each pump undergoes rigorous 100% simulated duty-cycle testing on dedicated test benches to validate pressure-flow-efficiency performance curves.

Brand Disclaimer: This product is a high-quality compatible replacement engineered for full interchangeability with Parker Hannifin original equipment. All Parker brand names and model codes are referenced solely to indicate compatibility and interchangeability. This product is manufactured by an independent producer and is not an original Parker product.

Technical Specifications 

• Model Code: PGP620B0360CE1H3WS7*D5C-620A0290XB1D5B1B1

• Parker Part Number: 7029120005

• Brand Series: Parker Hannifin PGP620 (PGP600 Series)

• Product Type: Tandem Fixed Displacement External Gear Pump

• Primary Section Displacement: 36.0 cm³/rev

• Secondary Section Displacement: 29.0 cm³/rev

• Series Displacement Range: 16 – 52 cm³/rev

• Continuous Operating Pressure: 275 bar

• Maximum Speed: 3,500 rpm

• Minimum Speed: 500 rpm

• Maximum Flow Rate (Series) : 156 L/min

• Rotation Direction: Clockwise (CW)

• Housing Material: Cast Iron

• Construction: Two-piece interlocking cast iron construction

• Bearings: Journal Bushings

• Thrust Plates: Pressure Balanced Thrust Plates

• Seals: NBR (Nitrile rubber)

• Hydraulic Fluid: Standard Hydraulic Fluids, Fire Resistant, Water-Glycol

• Recommended Viscosity Range: 50 – 7500 SUS

• Operating Temperature Range: -20°C to +80°C

• Recommended Cleanliness Level: ISO 4406 19/17/14 (@210 bar)

• Weight: 13.3 kg (Max)

• Country of Origin: Czech Republic

• Thru-Drive Capability: No

Key Technical Advantages

1. Two-Piece Interlocking Cast Iron Construction – High Power Density & Extreme Durability

Featuring Parker’s signature two-piece interlocking cast iron body design. Compared to conventional three-piece designs, the interlocking construction reduces sealing surfaces and fastener count, delivering higher pressure capability and power density within the same envelope size. Cast iron pump sections deliver extended service life under high-pressure shocks, severe temperature variations, and high-contamination conditions—ideal for demanding construction equipment applications.

2. Pressure-Balanced Thrust Plates & Journal Bushings – High Volumetric Efficiency & Long Life

Integrated pressure-balanced thrust plates automatically compensate for gear end clearance under high pressure, significantly reducing internal leakage. Paired with journal bushings, friction losses are minimized while extending service life. Delivers high volumetric efficiency and stable flow output across the full pressure range.

3. Integrated Tandem Design for Simplified System Architecture

This product combines a primary section (36 cc) and secondary section (29 cc) into a single compact tandem unit, delivering two independent oil flows from a single drive input. This significantly simplifies hydraulic piping, saves installation space and cost—particularly ideal for JCB 3CX/4CX backhoe loaders requiring simultaneous steering and implement actuation.

4. Broad Speed & Temperature Operating Range

Supports a wide speed range of 500 to 3,500 rpm with operating temperature range from -20°C to +80°C. Maintains stable flow characteristics from cold start to high-speed continuous duty.

5. Extensive Integrated Valve Options

The PGP620 series supports integration of multiple control valve functions including: Relief, Load Sense, Priority, and Unloading valves. Flexible configuration reduces external valve groups and piping.

6. 100% Simulated Duty-Cycle Testing

Every pump is 100% tested on dedicated hydraulic test benches under simulated real-world operating conditions—validating pressure-flow characteristics and efficiency curves at rated pressure (275 bar) and full speed range—ensuring zero-defect, plug-and-play performance upon installation.

Application Areas

• Construction Equipment: JCB 3CX/4CX backhoe loader hydraulic systems

• Agricultural Machinery: Tractor hydraulic systems, combine harvester implement drives

• Forestry Equipment: Wood processing and material handling equipment

• Material Handling Equipment: Forklifts, telehandler hydraulic systems

• Vocational Vehicles: Fan drive pumps, mower pumps, steering and brake pumps

• Winch Systems: Winch drive pumps

• Mining & Oil & Gas: Mining machinery and oilfield equipment hydraulics

Expert Maintenance Tips

1. Fluid Cleanliness Control

Maintain system fluid cleanliness to ISO 4406 19/17/14 or better (@210 bar). Install a ≤10 μm absolute filtration filter upstream of each inlet port to prevent particle contamination from damaging precision gear pairs, journal bushings, and thrust plates.

2. Inlet Line Requirements

Keep suction lines short and straight with adequate diameter—not less than the port size. Both inlet ports of the tandem pump must be supplied with sufficient flow independently. Recommended suction line flow velocity: ≤1.5 m/s to prevent cavitation from excessive inlet resistance.

3. Coupling Alignment Precision

Ensure pump shaft-to-drive shaft coaxiality deviation ≤0.05 mm and angular deviation ≤0.5° during installation. Flexible couplings are strongly recommended. If the drive involves sprockets or V-belt pulleys, an independent outboard bearing MUST be installed to protect pump shaft bearings.

4. First-Start Priming Procedure

Before initial startup, bleed air through both outlet ports or drain ports separately. Perform 2–3 jog starts with outlets open (no load) until oil fills both pump sections without air bubbles, then connect load circuits for full operation.

5. Viscosity & Temperature Monitoring

Recommended operating viscosity: 50 – 7500 SUS. During cold starts when viscosity exceeds the recommended range, ensure adequate suction conditions or preheat the fluid. Operating temperature range: -20°C to +80°C.

6. Rotation Direction Confirmation

This model is standard configured for clockwise (CW) rotation. Always verify that the drive motor/engine rotation matches the pump before installation. Specify counterclockwise (CCW) configuration when ordering if required.