The Doosan 90013100333 idler roller is a genuine OEM replacement part designed for various Doosan DX series excavators and wheeled excavators. This critical undercarriage component ensures proper track tension and guidance, contributing to the smooth operation and longevity of the machine's track system. It is compatible with models including DX140LC-3, DX140LCR-3, DX140LCR-5, DX140LC-5, DX160LC-3, DX160LC-5, DX180LC-3, DX180LC-5, DX190W-3, DX190W-5, DX210W-3, DX210W-5, DX225LC-3, DX225LC-5, DX235LCR-5, and DX235NLC-5.