3339112333 Parker Hydraulic Gear Pump | PGP517 33cc 250 bar

Product Overview

This product series comprises high-pressure external gear pumps manufactured by Parker Hannifin, covering models from the PGP500 Series and PGP620 Series. Parker is a globally recognized manufacturer of hydraulic components, with gear pump products renowned for high performance, high efficiency, and low-noise operation.

The PGP500 Series includes three housing options—PGP505, PGP511, and PGP517—with displacements ranging from 0.8 to 70 cc/rev. Featuring high-strength aluminum housings and pressure-balanced bearing blocks, the series delivers continuous operating pressures up to 275 bar (4,000 psi) . The PGP620 Series offers larger displacement cast iron or aluminum gear pumps for heavier-duty applications.

Engineered as a direct OEM-replacement solution, these gear pumps fully comply with Parker original design standards and SAE mounting interface specifications, offering 100% direct interchangeability with OEM pumps. Every unit undergoes 100% workload simulation testing prior to shipment, rigorously validating pressure retention, volumetric efficiency, and internal leakage performance to meet or exceed OEM standards.

Model Code Reference (Bulleted List) :

• 3339112333 — Parker PGP517 Aluminum Gear Pump

  • Corresponding full model: PGP517A0330AD1H3NP3P2B1B1

• 25526818/056 — Parker Gear Pump, compatible with Kalmar forklifts

• 3319111387 — Parker PGP505 Aluminum Gear Pump

  • Corresponding full model: PGP505A0060CA1H2NE5E3B1B1

• 7029110058 — Parker Gear Pump, compatible with Konecranes container handling equipment

  • Corresponding full model: PGP620A0230CA1H2NB1B1E6E5

• 3339120103 — Parker Double Gear Pump, compatible with Hyster forklifts

Technical Specifications 

3339112333 (PGP517A0330AD1H3NP3P2B1B1)

• Part Number: 3339112333

• Full Model: PGP517A0330AD1H3NP3P2B1B1

• Series: Parker PGP517

• Pump Type: External gear pump

• Geometric Displacement: 33 cc/rev

• Working Pressure: 25 MPa (approx. 250 bar)

• Maximum Speed: 3000 rpm

• Housing Material: Aluminum alloy

• Weight: 9.5 kg

• Dimensions: 220 × 140 × 140 mm

3319111387 (PGP505A0060CA1H2NE5E3B1B1)

• Part Number: 3319111387

• Full Model: PGP505A0060CA1H2NE5E3B1B1

• Series: Parker PGP505

• Pump Type: External gear pump

• Geometric Displacement: 6 cc/rev

• Working Pressure: 275 bar

• Rotation Direction: Clockwise (viewed from shaft end)

• Shaft Type: SAE-A spline, 16/32 pitch

• Flange Type: SAE-A 2-bolt flange

• Pilot Diameter: 82.55 mm

• Inlet Port: 3/8″

• Seal Material: Nitrile

• Weight: Approx. 4 kg

7029110058

• Part Number: 7029110058

• Full Model: PGP620A0230CA1H2NB1B1E6E5

• Series: Parker PGP620

• Displacement: 23 cc/rev

• Shaft Type: Splined shaft

• Weight: Approx. 10.8 kg

• Compatible Equipment: Konecranes container handling equipment

25526818/056

• Part Number: 25526818/056

• Brand: Parker

• Compatible Equipment: Kalmar forklifts

3339120103

• Part Number: 3339120103

• Pump Type: Double Hydraulic Gear Pump

• Brand: Parker

• Country of Origin: Germany (Parker Hydraulics – PMDE CHEMNITZ GERMANY / CHOMUTOV CZECH REPUBLIC)

• Compatible Equipment: Hyster forklifts

Key Technical Advantages

1. PGP500 Series Platform – High Pressure, High Performance
The PGP500 Series is Parker’s high-performance upgrade to the internationally recognized “bushing block” gear pump technology. Pressure-balanced bearing blocks ensure maximum efficiency across all operating conditions. Continuous operating pressure reaches 275 bar (4,000 psi) , with high-strength materials and large shaft diameters reducing bearing loads.

2. Optimized Gear Profile – Low-Noise Operation
Optimized gear tooth profiles and flow metering deliver reduced pressure pulsation and exceptionally quiet operation. PGP500 Series pumps deliver superior performance, high efficiency, and low noise at high operating pressures.

3. High-Strength Aluminum Housing – Lightweight & High Strength
The PGP500 Series features heavy-duty aluminum housings, with some displacement pumps delivering continuous operating pressures up to 280 bar. Aluminum construction provides lightweight design without compromising structural integrity or heat dissipation.

4. Flexible Configuration & Multi-Section Support
The PGP500 Series includes three housing options—PGP505, PGP511, and PGP517—with displacements from 0.8 to 70 cc/rev. All pumps include internal splines for multi-section assembly, supporting tandem and triple pump configurations.

5. 100% Factory Tested & Direct Interchangeability
Every unit undergoes 100% workload simulation testing prior to shipment, covering pressure retention verification, internal leakage detection, and flow validation. Fully compliant with Parker original design standards, with flange dimensions, shaft specifications, and mounting interfaces identical to OEM pumps—direct drop-in replacement with zero modifications required.

Application Areas

This series of Parker gear pumps is widely used in the following equipment:

• Forklifts: Kalmar forklifts, Hyster forklifts, and other material handling equipment

• Container Handling Equipment: Konecranes reach stackers and empty container handlers

• Construction Equipment: Loaders, excavators

• Agricultural Machinery: Tractors

• Mobile Hydraulic Equipment: Various mobile machinery hydraulic systems

Expert Maintenance Tips

1. Model Confirmation
This series includes multiple models across different series and displacements. 3339112333 is PGP517 Series 33 cc/rev; 3319111387 is PGP505 Series 6 cc/rev; 7029110058 is PGP620 Series 23 cc/rev; 3339120103 is a double pump configuration. Before installation, verify the complete model code on the original pump nameplate.

2. Rotation Direction Confirmation
PGP series support clockwise (CW), counterclockwise (CCW), and bi-rotational configurations. Before installation, always verify that the PTO rotation direction of the host machine matches the pump’s rotation direction—incorrect rotation will result in pump failure to prime and may cause severe damage to gears and bearings within a short period.

3. Installation Precautions

• Thoroughly clean the mounting flange and shaft mating surfaces before installation to ensure no debris remains

• 3319111387 features SAE-A 2-bolt flange with 82.55 mm pilot diameter

• Use Parker-specified torque values for mounting bolts—avoid over-tightening which may cause distortion of the aluminum housing

• Ensure correct connection of inlet, outlet, and drain ports

• Direct drive with flexible coupling is recommended—avoid subjecting the pump to axial or radial loads

4. First Start-Up and Bleeding

• Before first start-up, must fill the pump with hydraulic oil through the inlet port—never start dry

• After start-up, run at low speed with no load for 2–3 minutes to ensure complete air evacuation from the system

• Check for abnormal noise or leakage—aluminum housing pumps are particularly sensitive to cavitation

5. Fluid and Filtration

• Use high-quality anti-wear hydraulic oil compliant with DIN 51524 standards

• Maintain system oil cleanliness to ISO 4406 18/15 or better

• Operating temperature should be maintained within -15℃ to +80℃

6. Periodic Maintenance

• Check mounting bolt torque every 1,000 operating hours

• Regularly monitor system operating pressure—PGP500 Series not to exceed 275 bar

• Regularly inspect and replace shaft seals to prevent leakage

• If flow output decreases, noise levels increase abnormally, or system temperature rises excessively, inspect and replace worn components promptly