Kawasaki K3V140 K3V140DT Hydraulic Main Pump 31N8-10010 31N8-10030 LC10V00010F1 Axial Piston Main Hydraulic Pump Replacement
Welcome to our heavy machinery hydraulic supply center. We specialize in providing the complete Kawasaki K3V140 / K3V140DT excavator hydraulic main pump assembly (Part No. 31N8-10010 / 31N8-10030 / LC10V00010F1 / 2401-9154B), precision-manufactured as a heavy-duty aftermarket replacement main pump compatible with Kobelco, Hyundai, Doosan, Vol.vo, and Sumitomo 30-ton excavators. Engineered to deliver OEM-standard high hydraulic pressure and maximum oil displacement, this dual axial piston pump restores original machine operating speed and heavy-duty digging force.
- Hydraulic Pump Model: Kawasaki K3V140DT / K3V140 Series Variable Displacement Axial Piston Pump
- Applicable Machinery Models: Fit for Kobelco (SK300-5, SK320-5, SK330-6), Hyundai (R290LC-7, R300LC-7, R330LC-9S), Doosan (DH300-5, Solar 280LC-III), Vol.vo (EC290B) Excavators
- Reference Part Number / OEM: 31N8-10010 / 31N8-10030 / 31N8-10050 / LC10V00010F1 / 2401-9154B
- Integrated Components: Tandem piston pump housing, factory-calibrated torque regulators, gear pilot pump, swashplate cradle, and solenoid control block
- Condition: 100% Brand New Aftermarket / Direct Fit OEM Interchangeable Replacement
- Testing & Quality Assurance: 100% Hydraulic Bench Pressure & Flow Rate Dynamometer Tested, 6–12 months warranty included
Heavy mining and trenching tasks cause internal hydraulic pump wear over time. Replacing your aged pump with our Kawasaki K3V140DT main pump assembly directly resolves these critical machine failures:
Cause: Severe internal wear between cylinder block and valve plate or worn piston plungers causing internal oil bypass.
Fix: Installing a brand-new main pump restores full operating pressure (34.3 MPa) and fast compound digging speeds.
Cause: Sticking hydraulic regulator spools or improper swashplate torque control failing to destroke the pump.
Fix: Factory pre-calibrated displacement regulators ensure exact engine-pump power matching to prevent engine stalling.
Cause: Pitted drive shaft bearings, damaged swashplate cradle bearings, or aeration in the hydraulic suction line.
Fix: Full pump replacement eliminates vibration and mechanical chatter, protecting down-stream control valves.
Cause: Excessive internal fluid recirculation leakage generating intense thermal energy inside the casing.
Fix: Precision micron-level piston-cylinder clearances eliminate internal leakage and prevent thermal breakdown.
Cause: Hardened or damaged main shaft oil seals due to high operating temperature and pressure spikes.
Fix: Pre-installed Japanese high-pressure oil seals prevent external fluid leakage and protect hydraulic oil levels.
Engineered for high-intensity 30-ton excavator earthmoving duties, the Kawasaki K3V140DT main pump excels in:
- Heavy Open-Pit Mining & Rock Excavation: Supplies continuous high-pressure oil flow for rapid full-bucket digging cycles.
- Large Mass Earthmoving & Trenching: Precise variable displacement control enables smooth multi-function boom and arm movements.
- Rock Breaking & Heavy Demolition: Reinforced cast iron casing withstands continuous hydraulic shock pressure impacts.
Q: Where can I buy a replacement Kawasaki K3V140DT hydraulic main pump?
A: You can purchase brand-new aftermarket Kawasaki K3V140 / K3V140DT hydraulic main pumps directly from us. We stock fully assembled, bench-tested units ready for Kobelco, Hyundai, and Doosan excavators.
Q: What are the OEM part numbers for Kawasaki K3V140DT main pumps?
A: Common reference part numbers include 31N8-10010, 31N8-10030 (Hyundai R300LC-7), LC10V00010F1 (Kobelco SK330-6), and 2401-9154B (Doosan DH300). Please check your pump tag before ordering.
Q: Does this K3V140DT pump assembly come pre-adjusted with regulators?
A: Yes, it arrives complete with factory pre-calibrated torque regulators and pilot pumps, making it a direct plug-and-play drop-in replacement.
