Parker PGP517 Gear Pump | 3222324199 3339112401 PGP517A0380

The Parker PGP 517 Series from LIC Hydraulic is a premium, fixed-displacement aluminum gear pump designed for high-performance applications. Featuring a robust two-piece cast iron end-cover and high-tensile aluminum body, the PGP 517 (e.g., PGP517A0380AD1H3NP5E5B1B1) strikes the perfect balance between weight and durability. We provide high-quality replacements for OEM part numbers 3222324199 and 3339112401, ensuring 100% functional interchangeability. Every unit undergoes 100% simulated load testing to guarantee exceptional volumetric efficiency and whisper-quiet operation even at continuous pressures up to $250\text{ bar}$.

Technical Specifications 

• Series: Parker PGP 517 (PGP / PGM Series)

• Displacement: $38.0\text{ cm}^3\text{/rev}$ (For A0380 specifications)

• Rated Operating Pressure: $250\text{ bar}$ ($3625\text{ psi}$)

• Peak Pressure: $280\text{ bar}$ ($4060\text{ psi}$)

• Max Speed: $2400\text{–}3400\text{ rpm}$

• Body Material: High-tensile extruded aluminum

• End Cover Material: Heavy-duty cast iron for anti-wear protection

• Seals: Available in NBR or FKM (Viton)

Key Technical Advantages

• Axial Pressure Compensation: The PGP 517 utilizes floating bushes that automatically adjust to pressure changes. This minimizes internal leakage and maintains a volumetric efficiency of over $95\%$ throughout the pump’s lifecycle.

• Low-Pulse Gear Design: High-precision ground steel gears with a 12-tooth configuration reduce flow ripples. This leads to a smoother hydraulic flow and a significant reduction in noise levels, enhancing operator comfort.

• Reliable Cold-Start Performance: The aluminum construction allows for rapid thermal adaptation, ensuring the pump operates reliably in cold weather without the risk of seizing or excessive mechanical wear.

• Modular Multi-Pump Capability: The series supports tandem and triple pump configurations. Optional through-drive shafts allow multiple circuits (e.g., steering and lifting) to be powered by a single input, optimizing space and costs.

Application Areas

• Mobile Equipment: Auxiliary hydraulics for backhoes, wheel loaders, and motor graders.

• Material Handling: Primary lift pumps for heavy-duty forklifts and telehandlers.

• Industrial HPUs: Metal balers, medium-sized power units, and machine tool lubrication.

• Municipal Vehicles: Compression systems for refuse trucks and brush drives for sweepers.

Expert Maintenance Tips

• Avoid Radial Loads: Standard PGP 517 pumps are not designed for direct belt or chain drives. If used, an external bearing block must be installed to prevent shaft seal failure and bushing misalignment.

• Filtration Standards: Gear pumps are sensitive to abrasive particles. Maintain oil cleanliness to ISO 4406 19/17/14. If a drop in flow is detected, inspect the floating bushes for scoring immediately.

• Suction Line Integrity: Ensure the suction line is fully airtight. Suction pressure should never fall below $-0.3\text{ bar}$ (vacuum). Cavitation caused by restricted suction will lead to pitting on the gear teeth and excessive noise.