Hyundai 31Q4-40030 final drive for Hyundai Robex R140LC-9 R140LC-9A R140LC-9S R145LCR-9 excavator
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Product: Final Drive Travel Motor With Gearbox
Final Drive Part Number: 31Q4-40030, 31Q4-40040, 31Q4-40031, 39Q4-40100, 38Q4-40100, 31Q5-42051
Travel Motor Part Number: XKAH-01182, XKAY-01782, 39Q4-41100, 31Q5-42030
Travel Reduction Part Number: XKAH-01458 XKAY-01869 XKAH-01667 39Q4-42100 38Q4-42100 31Q6-40121
Fit Model: HYUNDAI Robex R140LC-9, R140LC-9A, R140LC-9S, R145LCR-9
Application: Excavator Parts
2.Core Advantages
High precision manufacturing, strict quality inspection.
Complete assembly including motor and gearbox, direct replacement.
Stable performance for heavy‑duty working conditions.
3.Technical Data
Assembly Type: Integrated travel motor + multi‑stage planetary reduction gearbox
Applicable Machine Weight: 14‑16 ton excavator
Rated Working Pressure: 27 MPa, Max Peak Pressure: 31 MPa
Max Output Torque: 16200 N·m
Reduction Ratio: 1:40.2
Travel Speed Range: 3.2‑5.2 km/h
Brake Type: Built‑in multi‑disc wet parking brake
Rotation Mode: Bidirectional rotation
Housing & Gear: High‑strength alloy steel material
Mounting Dimension: Matches OEM standard for direct bolt‑on installation
4.FAQ
Q: Is this complete final drive unit?
A: Yes, it comes with travel motor and gearbox together.
Q: Which excavator models does it fit?
A: Directly fits HYUNDAI Robex R140LC-9, R140LC-9A, R140LC-9S, R145LCR-9.
Q: Can it replace original OEM unit directly?
A: Yes, same mounting dimension for direct installation.