Product Overview
The PGP620B0410AD1A3MT4T3S-620A0160XE6E5B1B1 is a cast iron external gear pump from the Parker Hannifin PGP620 series. This model is a JCB construction equipment OEM custom configuration, corresponding to Parker part number 7029122021, widely used on JCB 3CX/4CX backhoe loaders and other equipment.
Engineered with Parker’s signature two-piece interlocking cast iron construction, the pump features journal bushings and pressure-balanced thrust plates for exceptional durability and efficiency. This model features a thru-drive configuration with a secondary pump section—the “620A0160” suffix indicates integration of a 0160-size secondary pump group, allowing tandem drive of additional hydraulic pumps on the same input shaft.
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: PGP620B0410AD1A3MT4T3S-620A0160XE6E5B1B1
Parker Part Number: 7029122021
Brand Series: Parker Hannifin PGP620 (PGP600 Series)
Pump Type: Fixed Displacement Gear Pump
Primary Section Displacement: 41 cm³/rev (“0410” code indicates 41 cc)
Secondary Section Displacement: 16 cm³/rev (“0160” in 620A0160 indicates 16 cc)
Continuous Operating Pressure: 275 bar (3,989 psi)
Displacement Range (PGP620 Series): 16 – 52 cm³/rev
Maximum Speed: 3,500 rpm
Minimum Speed: 500 rpm
Maximum Flow Rate (PGP620 Series): 156 L/min
Rotation Direction: Clockwise (CW) / Counterclockwise (CCW) available
Mounting Flange: SAE B 2-Bolt Flange
Drive Shaft Type: Splined Shaft
Housing Material: Cast Iron
Seals: NBR (Nitrile rubber)
Hydraulic Fluid: Standard Hydraulic Fluids, Fire Resistant, Water-Glycol
Operating Temperature Range: -20°C to +80°C
Recommended Cleanliness Level: ISO 4406 19/17/14 (at 210 bar)
Weight: Approx. 13 kg (PGP620 series max)
Country of Origin: Czech Republic
Key Technical Advantages
1. Two-Piece Interlocking Cast Iron Construction – High Power Density
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, while lowering OEM assembly costs and installation space requirements.
2. Pressure-Balanced Thrust Plates – High Volumetric Efficiency
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, delivering high volumetric and overall efficiency across the full pressure range.
3. Cast Iron Pump Sections – Extreme Durability
The cast iron pump sections provide superior structural rigidity and pressure containment. Compared to aluminum alternatives, cast iron construction delivers extended service life under high-pressure shocks, severe temperature variations, and high-contamination conditions—ideal for demanding construction equipment applications.
4. Thru-Drive Design – Multi-Section Expandability
The “620A0160” suffix indicates integration of a 0160-size secondary pump group, allowing tandem drive of additional hydraulic pumps on the same input shaft. This thru-drive design enables flexible system expansion to multi-pump configurations, meeting complex hydraulic system demands for multiple independent flow circuits.
5. 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.
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 hydraulics
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. Install a ≤10 μm absolute filtration filter upstream of the 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. 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, prime the pump by bleeding air through the drain port or a loosened outlet fitting. Perform 2–3 jog starts with the outlet open (no load) until oil fills the pump cavity without air bubbles, then connect the load circuit for full operation.
5. Torque Tightening Requirements
Refer to Parker PGP600 series service manual for mounting bolt torque specifications: PGP620 series mounting bolt torque is 31 Nm.
6. Rotation Direction Confirmation
This model supports both clockwise (CW) and counterclockwise (CCW) rotation configurations. Always verify that the drive motor/engine rotation matches the pump nameplate indication before installation.
7. Thru-Drive Secondary Pump Installation
This model features a thru-drive secondary pump interface. When installing the secondary pump, ensure coupling alignment and torque transmission meet Parker specifications to prevent main pump bearing overload from improper secondary pump installation.
