AT180926 98309356 John Deere Hydraulic Piston Pump 410G 410E

Product Overview

The AT180926 (interchangeable with 98309356, AT191574, AT197383, AT428960 and others) is a high-precision, fully interchangeable main hydraulic axial piston pump designed for John Deere 410G and 410E backhoe loaders equipped with the 4045 series engine (including 4045TT093). As the core power source of the machine’s main hydraulic system, it delivers stable high-pressure flow to support simultaneous loader and backhoe functions. Every unit undergoes 100% simulated operating condition testing to ensure exact dimensional, interface, drive, and performance interchangeability with the original John Deere pump—enabling true drop-in replacement without any modification.

Technical Specifications 

• Model: AT180926 (Interchange numbers: 98309356, AT191574, AT197383, AT428960, etc.)
• Compatible Engine: John Deere 4045 / 4045TT093
• Compatible Machines: John Deere Backhoe Loader 410G, 410E
• Pump Type: Axial piston variable displacement (main hydraulic pump)
• Mounting & Interfaces: Exact match to OEM flange, shaft end, and port locations
• Operating Characteristics: Designed for the main hydraulic circuit supporting loader and excavator functions
• Interchangeability: Direct drop-in replacement, no plumbing or bracket modifications required
• Testing Standard: 100% simulated real-world duty cycle testing for pressure, flow, and durability

Key Technical Advantages

1. Precise Drop-in Interchangeability: Mounting dimensions, shaft spline/keyway, and port locations are identical to the original, allowing true plug-and-play installation and eliminating field modification risks.
2. High-Strength Materials and Precision Machining: Premium cast-iron housing and precision piston components provide excellent impact resistance and volumetric efficiency under the frequent high-pressure shock loads typical of backhoe loaders.
3. Stable High-Pressure Output with Low Ripple: Optimized valve plate and piston design reduces pressure pulsation, minimizing system shock and extending the service life of valves and cylinders.
4. Rigorous Duty-Cycle Testing: Each pump is 100% tested under simulated load and temperature cycles to ensure long-term reliability in dusty, vibrating, and high-duty environments.
5. Multi-Generation Compatibility: Covers both 410E and 410G series, simplifying inventory management and enabling fast response to repair needs.

Application Areas

• Main hydraulic system of John Deere 410G / 410E backhoe loaders
• Loader bucket, backhoe arm, swing, and steering circuits
• Engineering machinery requiring stable high-pressure flow for combined operations
• OEM pump replacement or preventive maintenance upgrades

Expert Maintenance Tips

• Confirm engine model (4045 series) and machine serial number before installation; check shaft and flange alignment.
• After installation, fully bleed the system and inspect suction line seals to prevent cavitation-related early wear.
• Maintain hydraulic fluid cleanliness at ISO 4406 18/16/13 or better and replace return filters regularly.
• Avoid prolonged over-pressure operation; monitor system temperature and noise levels.
• After initial run-in, check for leaks and verify bolt torque; follow OEM seal replacement intervals.
• Keep ports sealed during storage to prevent contamination.