The Yanmar 17249937301EC is a genuine OEM bottom roller designed for Yanmar SV100 series excavators. This critical undercarriage component supports the weight of the machine and guides the track, ensuring stable and efficient movement. Manufactured to Yanmar's high standards, it provides reliable performance and extended service life in demanding operating conditions. Replacing worn bottom rollers with this original part helps maintain optimal track tension and reduces wear on other undercarriage components.