Doosan OEM Replacement Top Roller with 40Mn Material and 1 Year Warranty for DX220LC-9 DX225LC-9 Excavators

This top roller is a 1:1 OEM replacement component for the listed Doosan excavator models, with standard part number 200105-00025. It fully conforms to original installation dimensions and requires no on-site rework. Designed for long-term heavy-duty operation, it adapts to various complex construction working conditions.

Suited for sites with frequent impact, muddy water and abrasive gravel. Under long-term friction, erosion and load impact, ordinary rollers tend to appear track sagging, abnormal vibration, shaft jamming and seal leakage. This part is engineered to resist such common operating issues.

Adopt integrated forging blanks for production. Quenching enhances surface hardness to withstand abrasive wear. Tempering removes internal structural stress and prevents shell cracking under continuous impact. All shafts, mounting holes and fitting surfaces are processed by CNC equipment, with machining error controlled within 0.01mm to match OEM standards.

• Eliminate track vibration caused by dimensional deviation
• Prevent oil leakage and shaft rust in humid, muddy environments
• Reduce unplanned downtime caused by component damage
• Enable quick assembly to save on-site maintenance time

A machinery maintenance firm with multiple Doosan fleets once used generic rollers, which failed after 700-850 working hours. After switching to our OEM-spec top rollers, all units run stably for more than 1800 working hours, lowering annual undercarriage maintenance costs by 34%.

Yes. Part No. 200105-00025 is universally compatible with DX220LC-9, DX225LC-9, DX200A, DX200LC, DX225LCA and DX260LCA, no adjustment needed.

Generic products usually skip tempering and have tolerance above 0.05mm. Complete dual heat treatment and 0.01mm high precision ensure stable performance in harsh conditions.

Yes. Heat treatment and dimensional inspection reports can be provided together with bulk shipments.