Experiencing weak digging force or slow hydraulic response in your Komatsu backhoe loader? Our precision-engineered Hydraulic Main Pump (Part# 708-1U-00161 / 7081U00161) delivers OEM-grade performance for Komatsu WB93 and WB97 machines at 30% lower cost.
Engineered for Komatsu Backhoe Loaders
This GP (General Purpose) Hydraulic Pump is 100% interchangeable with Komatsu OEM part 708-1U-00161. Specifically designed for the unique demands of backhoe operations:
✅ Exact Fit: Direct bolt-on replacement for WB93 & WB97 models
✅ Restored Hydraulic Power: Regain factory-spec digging/lifting force
✅ Triple-Tested Reliability: 72-hour stress testing under load conditions
✅ Corrosion-Resistant: Hard-chromed rods & phosphate-coated housing
✅ Zero Leak Guarantee: Laser-welded seals withstand 3,500+ PSI
Critical Failure Symptoms We Solve:
• Slow bucket/boom movement
• Loss of digging power
• Hydraulic oil overheating
• Unusual pump whining/groaning
• Frequent pressure relief valve activation
Technical Specifications:
| Parameter | Specification |
|---|---|
| OEM Part # | 708-1U-00161 / 7081U00161 |
| Compatibility | Komatsu WB93, WB93R, WB97, WB97R |
| Displacement | 56 cm³/rev (tested to ±0.5% tolerance) |
| Max Pressure | 28 MPa (4,060 PSI) |
| Fluid Type | ISO VG 46 Hydraulic Oil |
Why This Outperforms Generic Pumps:
• Precision-Matched Components: Rotor group clearances calibrated to 5-micron accuracy
• Thermal Stability: Maintains viscosity across -20°C to 110°C range
• Shock Absorption: Dampened gerotor gearset reduces vibration damage
• Extended Service Life: 2X wear resistance vs. aftermarket pumps
Keywords Integrated:
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Act Now Before Failure Costs You More!
⚠️ Delayed replacement risks damage to control valves and cylinders.
Our Komatsu-certified pump ships same-day with 18-month warranty. Global air freight available.
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