Precision-engineered to Komatsu OEM specifications (±0.025mm tolerance), the 7081U01112 hydraulic main pump delivers 165±3 bar operating pressure for WB93/WB97 backhoe loaders. Direct replacement for 708-1U-01112 with optimized performance for both digging and loading applications.
Dual-Application Performance
| Parameter | Specification | Test Standard |
|---|---|---|
| Flow Rate | 52 L/min @ 2,200 RPM | ISO 4409:2007 |
| Pressure Stability | ±2.5% @ 165 bar | SAE J745 |
| Response Time | <0.35s (loader to hoe transition) | DIN 24300 |
| System Efficiency | 89% volumetric @ 100 bar | ISO 4406:2021 |
| Power Consumption | 18.5 kW max | Komatsu STD 2104-03 |
Model-Specific Compatibility
| Series | Model Variants | Primary Applications |
|---|---|---|
| WB93R-2 | WB93R-2, WB93R-2EO | Utility trenching |
| WB97S-5 | WB97S-5, WB97S-5N | Landscape grading |
| WB97R-3 | WB97R-3, WB97R-3E | Construction loading |
| WB97S-8 | WB97S-8, WB97S-8N | Municipal maintenance |
Dual-Function Engineering
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Loader Optimization
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Quick-response flow control for smooth lifting
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15% faster bucket cycling vs. aftermarket pumps
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Backhoe Precision
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Fine control for precise digging depth (±2cm)
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Minimal pressure overshoot during digging
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Durability Features
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Carburized steel gears (HRC 58-60)
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Triple-lip seals (9,500 PSI rating)
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Maintenance Access
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Standard SAE ports for easy servicing
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Quick-disconnect hydraulic connections
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