John Deere AT Series Hydraulic Pump | AT280243, AT280524, AT280245, AT457670 | Backhoe Loader Main Pump
| Model Number | At457670, At302661, AT280243, AT280524, AT280245 |
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Product Description
John Deere AT Series Axial Variable Displacement Piston Pump
Product Overview: The John Deere AT series hydraulic piston pumps are high-performance variable displacement units specifically engineered for John Deere construction equipment, particularly its renowned Backhoe Loader line. Covering essential models such as AT280243, AT280524, AT280245, and AT457670, these pumps provide precise hydraulic flow and pressure support for digging, loading, and steering systems. As a critical power core, the AT series is the premier choice for the aftermarket, offering exceptional shock resistance, extended service life, and unmatched stability under high-intensity duty cycles.
Key Technical Advantages:
Precise Variable Displacement: Utilizing an advanced swashplate design, the pump automatically modulates flow output based on real-time load demand, significantly reducing heat generation and improving fuel efficiency.
Heavy-Duty Optimization: Specifically optimized for John Deere 310J/K, 410J/K, and 710J backhoe loaders. The high-strength ductile iron housing is built to withstand frequent digging impacts and travel loads.
OEM-Grade Compatibility: Manufactured to strict OEM specifications to ensure that installation dimensions, spline shafts, and porting perfectly match the original machine, facilitating rapid “plug-and-play” maintenance.
High-Pressure Stability: Enhanced valve plates and piston groups maintain peak volumetric efficiency under high-pressure operations, ensuring no power loss during heavy-duty excavation tasks.
Detailed Models & Parameters:
Core Model Keywords: AT280243, AT280524, AT280245, AT457670.
Compatible Equipment: John Deere 310J, 310K, 410J, 410K, 710J series Backhoe Loaders.
Component Type: Axial Variable Displacement Piston Pump.
Primary Application: Main Hydraulic System, Travel Drive, and Loader Circuit.


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