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Product Description
AA4V56 Series High-Pressure Hydraulic Gear Pump for Wheel Loaders
Product Overview: The AA4V56 high-pressure hydraulic gear pump series is a premium OEM-grade power component specifically developed for heavy-duty wheel loaders. Serving as the “heart” of the hydraulic system, flagship models such as the AA4V56EZ1L0C 1010/12 and A22.4L 32140 deliver stable, continuous high-pressure oil flow for bucket lifting, tilting, and steering systems. Engineered with high-strength housings and precision-ground gear sets, these pumps maintain exceptional volumetric efficiency and extended service life even under the harsh vibrations and intensive duty cycles of loaders.
Key Technical Advantages:
Superior Shock Resistance: Structurally reinforced to withstand instantaneous high-pressure spikes during loading operations, effectively preventing housing cracks and internal leakage.
Precision Gear Mesh Technology: Optimized tooth profiles significantly reduce operating noise and hydraulic pulsations, enhancing system response speed.
Heavy-Duty Bearing Support: Equipped with high-performance DU bushings or roller bearings designed to endure all-weather, high-load conditions, drastically reducing maintenance frequency.
100% Drop-in Compatibility: Manufactured to strict AA4V56EZ mounting and shaft specifications, ensuring a seamless replacement for factory pumps in major wheel loader brands (e.g., Lonking, Liugong, SDLG, or global OEMs).
High Efficiency Performance: Maintains excellent self-priming capabilities even at low speeds, optimizing fuel consumption and the overall power balance of the machine.
Detailed Models & Parameters:
Core Series: AA4V56 Series.
Representative Models: AA4V56EZ1L0C 1010/12, AA4V56 EZ. LOC 10.10, A22.4L 32140.
Compatible Equipment: Medium to Large Wheel Loaders.
Pressure Ratings: Rated at 200-250 Bar (depending on specific configuration).
Rotation: Typical Counter-Clockwise (CCW) or Clockwise (CW) designs.
System Application: Working Implement Pump, Steering Assist Pump.
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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