Views: 0 Author: Site Editor Publish Time: 2026-09-14 Origin: Site
Doosan excavators — from the compact DX220A to the heavy-duty DX520LC — are built for tough jobsites, but their final drives take real punishment. Mud, rock, water, and extreme loads cycle through the drivetrain every single shift. When a final drive fails, the cost isn't just the part: it's the crane time, the lost production, and the scramble for a reliable replacement.
This guide covers Doosan final drive replacement across the DX and DH series — the part numbers that matter, how to confirm fitment, and where to source a certified aftermarket unit.
Here are the most commonly requested Doosan final drive units from BN Gears:
| OEM Part No. | Compatible Models | BN Gears Aftermarket |
|---|---|---|
| K9007404 | DX220A, DX225LC, DX230LC, DH220-7 | K9007404 Doosan Final Drive → |
| 9208060 | DH420-7 | DH420-7 Final Drive → |
| 404-00098C | SOLAR300LC-7, DX300LC | 404-00098C Final Drive → |
| 130401-00014B | DX255LC | 130401-00014B Final Drive → |
| 170401-00009 | DX520LC | 170401-00009 Final Drive → |
Browse all Doosan final drives → or the Doosan travel motor catalog →
Doosan's DX series covers current-generation machines, while DH models belong to the earlier generation naming. Part numbers are model-specific — Doosan revised specifications across generational updates, so a DH220-5 and a DH220-7 take different final drive units despite the similar model designation.
The K9007404 is a good example. It fits the DX220A, DX225LC, DX230LC, and DH220-7, with 30 frame holes and 30 sprocket holes — specifications that must be confirmed before ordering. Using it on an adjacent model without verifying hole counts and shaft configuration will result in a fitment failure.
Provide the excavator's full model name and serial number
Include the OEM part number if available (e.g., K9007404, 9208060, 9208109)
Confirm the frame hole and sprocket hole counts on your current unit
Specify whether a painted or unpainted finish is required
State delivery terms and port of destination
For Doosan models not listed in the standard catalog, BN Gears' engineering team evaluates compatibility and can develop new fits on request.
Check final drive oil level every 250 operating hours
Change gear oil every 1,000 hours (or per manufacturer spec)
Inspect floating seals during daily walk-around — a compromised seal lets contamination in and oil out
Watch for grinding noise, track slippage, or the machine pulling to one side — early signs of internal wear
ISO 9001:2015 certified manufacturing since 2000
18,000 m² factory in Jiangmen, China, with in-house heat treatment
Case-hardened forged alloy steel gears — same engineering logic as OEM
12,000+ parts covering 600+ construction machinery models
In-stock units processed and packed within 4–7 days, shipped worldwide
