4628892 9245506 final drive for Hitachi ZX40U-2 ZX50U-2 ZX55UR-2 ZX55UR-2D-2U mini excavator
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OEM Part Numbers: 4628892, 9245506Type: Travel motor / final drive assembly (Nachi / Hitachi OEM)Weight: ~50 kg (approx)Fits: 4–5 ton mini excavators
1. Compatible Models
Hitachi ZX40U-2
Hitachi ZX50U-2
Hitachi ZX55UR-2
Hitachi ZX55UR-2D
Hitachi ZX55UR-2U
2. Part Number Info
4628892: Main Hitachi OEM number (complete final drive)
9245506: Alternate / service replacement number (same assembly)
Common interchange: MAG-33VP-550, PHV-3B series (Nachi)
3. Key Features
Integrated design: Hydraulic motor + planetary reducer in one unit
Two-speed travel: High/low speed for digging and travel
Direct fit: Exact bolt pattern and porting, no modification needed
Sealed & prefilled: Factory gear oil, ready for installation
For mini excavator duty: Compact, high torque, reliable for 4–5 ton machines
4. Specifications (Typical for this series)
Max pressure: 24–26 MPa
Max torque: ~4,000 N·m
Displacement: ~800–1,100 cm³/rev
Mounting: Standard 12-bolt pattern (PCD ~210 mm)
5. Supply & Warranty
Stock: Guangzhou warehouse, ship in 1–3 working days
Condition: New aftermarket / OEM equivalent
Warranty: 12 months (standard)
Packing: Export wooden crate
6. FAQ
Q: 4628892 and 9245506 the same?A: Yes, both refer to the same final drive assembly for these models.
Q: Fits left and right?A: Yes, identical for both sides.
Q: Can you cross-reference my old part number or serial number?A: Send machine serial number or old part number for free verification.