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The AN374888 Pressure-compensated hydraulic pump employs an advanced pressure-compensated variable mechanism that dynamically adjusts output flow based on the cotton picker's operational load. It maintains constant system pressure during coordinated operation of multiple components—such as the picking spindle, lifting mechanism, and conveying device—or sudden load fluctuations.
This prevents pressure variations from affecting picking accuracy and operational continuity, ensuring stable harvesting across large-scale cotton fields. Its core internal components are crafted from high-strength alloy materials, with critical parts like the slide shoes and valve plates precision-forged and heat-treated for exceptional wear resistance and pressure tolerance. It effortlessly withstands harsh field conditions including dust, vibration, and prolonged continuous operation.
Compared to standard replacement pumps, maintenance and replacement frequency are significantly reduced, extending the overall service life of the machine. The AN374888 pump features identical dimensions, mounting hole positions, and inlet/outlet port specifications to the original John Deere 7660 cotton picker hydraulic pump. Replacement requires no modification of mounting interfaces or adjustment of hydraulic lines.
| Part Name | Pressure Compensated Hydraulic Pump | Part Number | AN374888 |
| Origin | China | Package | Industrial Packing |
| Weight | 31.61 lb | Height | 6.8 in |
| Width | 7.6 in | Length | 9.5 in |
| Operating Temperature | -20℃ - 80℃ | Drive Mode | Shaft Drive |
| Compatible Equipment | John Deere 7660 Self-propelled Cotton Box-Type Six-row Harvester | ||
| Related Model | AN373834 / PG200701, AN374889 | ||
Ideal for large-scale commercial cotton harvesting. Delivers stable power for picking heads, dual-fan conveying systems, and cotton bin augers even in high-yield or muddy conditions.
A targeted replacement solution for worn original pumps. Restores full machine functionality, addressing issues like insufficient power or stuttering cotton transport.
A core reserve part for agricultural machinery rental companies to ensure equipment availability and prevent downtime during the busy harvest season.
Yes. It is a custom replacement specifically designed for the 7660 six-row cotton picker. Its mounting specs and pressure parameters match this system exactly. Use with other models (e.g., 7760, 6440) is not recommended and may cause damage.
Performance and compatibility are identical. Both are pressure-compensated variable displacement axial piston pumps. The primary advantage of the AN374888 is a more competitive price point and better availability for rapid repair needs.
First, verify the model is correct. Second, clean the system by flushing the oil tank and suction filters to prevent contaminants. Finally, prepare tools like torque wrenches to ensure proper bolt tightening.
Fill the pump with genuine hydraulic oil before starting to prevent dry running. Run the pump unloaded for 1-2 minutes and monitor for leaks or abnormal noises. Ensure pressure stabilizes around 32MPa.
No, it is factory-preset according to John Deere 7660 parameters. It automatically adjusts flow to maintain stable pressure. If response seems slow, simply check and tighten the variable mechanism spring.
The standard life is 3-5 years but can exceed 6 years with care. Perform oil and filter changes every 500 hours, keep the pump surface clean from dust, and avoid forcing operation when the picking head is jammed.
