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Parker PGP511 Gear Pump | 326-9131, 334-9521 | PGP511B0190 | Caterpillar Replacement
| Model Number | 334-9521-026, 326-9131-031, 326-9110-461 |
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Product Description
Parker PGP511 Series High-Performance Gear Pumps (Caterpillar Compatible)
Product Overview: The Parker PGP511 Series is a globally recognized power source in mobile hydraulics, renowned for its exceptional reliability and high power density. Constructed with high-tensile extruded aluminum alloy bodies, these pumps are specifically engineered to handle the rigorous high-pressure demands (Rated up to 25-28 MPa) of construction machinery. This featured range covers core specs and Caterpillar (CAT) specific parts, including the flagship PGP511B0190CS4D3NE5E3S-503A0043XE3E2B1B1 and OEM interchange models 326-9131-031, 326-9110-461, and 334-9521-026 (3349521026).
Key Technical Advantages:
Three-Piece Sectional Design: Featuring a sectional modular structure, the pump body is crafted from high-strength extruded aluminum with precision cast covers, handling continuous high-pressure cycles without deformation.
100% Direct OEM Replacement: Manufactured strictly to the installation standards of Caterpillar and other mainstream construction equipment. Suffixes define precise flanges, shaft ends (e.g., S4D3 specs), and porting protocols for seamless integration.
Axial Gap Compensation: Equipped with pressure-balanced floating side plates, maintaining volumetric efficiency above 95% throughout its service life, effectively minimizing internal leakage and oil overheating.
Exceptional Impact Resilience: Internal self-lubricating heavy-duty bearings offer superior wear resistance under extreme environments like high temperatures and high-frequency pressure spikes.
Target Applications: Caterpillar excavator hydraulic circuits, skid steer loader lifting systems, paver steering pumps, and various heavy-duty power units.
Detailed Models & Parameters:
Core Series: Parker PGP511 Series & CAT Aftermarket Range.
Model Keywords: PGP511B0190CS4D3NE5E3S, 326-9131-031, 326-9110-461, 334-9521-026, 3349521026.
Displacements (ml/rev): Covering 19ml/rev (PGP511-0190) and related precision specifications.
Pressure Ratings: Rated at 25 MPa (250 Bar/3625 PSI); Peak pressure up to 28 MPa (4000 PSI).
Mounting Features: Available in standard SAE 2-Bolt / 4-Bolt flanges with multiple splined or keyed shaft options.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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