Views: 0 Author: Site Editor Publish Time: 2026-09-15 Origin: Site
Hyundai R-series excavators — from the R210-7 to the R305LC-7 — are workhorses on jobsites across Southeast Asia, Europe, and the Americas. When the travel gearbox wears out, downtime starts costing money immediately. A wrong part costs even more.
This guide covers everything you need to replace a Hyundai final drive: the OEM part numbers that matter, how to confirm the correct fitment, and why buyers trust BN Gears as the aftermarket source.
BN Gears stocks and manufactures travel reduction gearboxes for a wide range of Hyundai R-series excavators:
| Excavator Model | BN Stock Code | OEM Part Number | Sprocket / Frame Holes |
|---|---|---|---|
| R210-7, R225-7, R250LC-7 | 9208003 | XKAH-00901 / 610B1101-0100 | 30 / 30 |
| R210-7, R215-9, R225-9 | 9208006 | 31N6-40041 / 31Q6-40020 | 30 / 30 |
| R250LC-7, R209LC-7, R305LC-7 | 9208100 | 31N8-40070 / 31N8-40050 | 26 / 18 |
Browse all Hyundai final drives →
Getting the right gearbox starts with the part number, not just the machine model. Hyundai has produced multiple variants of models like the R210 and R250 across different production series, and these variants do not always share identical travel gearbox specifications.
Locate the OEM part number on the existing gearbox housing or in the machine's parts manual
Count the sprocket holes and frame holes on the current unit — for example, the R210-7 uses a 30-hole sprocket hub, while the R305LC-7 uses a 26-hole configuration
Cross-reference with BN's stock code to confirm availability and lead time
Contact BN Gears directly if you are uncertain — the sales team can verify compatibility before you commit
Check gear oil level every 250 hours — low oil is the #1 cause of premature final drive failure
Change gear oil every 1,000 hours or per manufacturer specification
Inspect the floating seals during daily walk-around; oil leaks let contamination in and accelerate wear
Listen for grinding or whining during the first minutes of travel — early detection saves the whole gearbox
Founded in 2000 — 25+ years manufacturing travel and swing reducers
ISO 9001:2015 certified, 18,000 m² factory in Jiangmen, China
Controlled heat treatment on all gears — increased bending strength and wear resistance
12,000+ components in stock, covering 600+ construction machinery models
Stock units ship within 4–7 business days; worldwide delivery by sea, air, or carrier
