Kubota KX057-4 U55-4 Travel Motor PHV-4B-60B-P final drive for mini excavator
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- Transfer of prepayment to the card
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1. Part Number Compatibility
This assembly replaces several superseded and current Kubota genuine part numbers to ensure a perfect fit:
Kubota Part Numbers: RD568-61290, RD568-61292, RD568-61293
Alternative Numbers: RD579-61290 (Specific to U55 series)
OEM Manufacturer Model: Nachi PHV-4B-60B-P-9005A / PHV-4B-60B-P
2. Machine Applications
Designed specifically for the hydraulic flow and pressure settings of Kubota’s mid-sized mini excavators:
Kubota KX Series: KX057-4, KX161-3
Kubota U Series: U55-4, U45-3, U50-3
Configuration: Fits both standard and long-track configurations.
3. Technical Specifications
Motor Type: Two-speed Axial Piston Motor (High/Low speed)
Reduction Type: Two-stage Planetary Gearbox
Installation: 9-Bolt or 12-Bolt sprocket flange (Verify based on serial number)
Port Connections: 2 Main Pressure Ports + 2 Pilot (Speed Change) Ports + 1 Case Drain Port
Weight: Approx. 65 kg (143 lbs)
4. Key Performance Features
Automatic Speed Shifting: Designed to work with Kubota's "Auto-Shift" system, automatically downshifting from high to low speed when encountering heavy loads or turns.
Integrated Brake System: Features a spring-applied, hydraulic-release parking brake for safety on inclines.
Heavy-Duty Seals: Equipped with high-quality floating seals to prevent gear oil leakage and exclude contaminants like sand and water.
Direct Bolt-On: Engineered to match the original chassis mounting holes and sprocket bolt patterns for immediate installation.
5. Supply Scope & Service
Unit Condition: Available as Brand New Original (Nachi), High-Quality Aftermarket, or Remanufactured.
Components Included: Complete assembly (Motor + Gearbox). Sprockets sold separately or as a kit.
Warranty: 12-month warranty on new assemblies against manufacturing defects.
Shipping: Worldwide express shipping available via DHL, FedEx, or Sea Freight for bulk orders.