MINI EXCAVATOR YANMAR VIO17 IDLER 172A64-37210
This is the aftermarket replacement idler for Yanmar mini excavator.
This is the larger roller that is at the front of the undercarriage that is designed to tension and tighten the rubber track. This is the roller that expands as you grease the tensioner to tighten the track.
This idler assembly comes fully assembled with the bearing ready for installation, just reuse your existing bolts to bolt to the tensioner.
This idler has yokes that extend out past the length of the idler wheel diameter. It comes exactly as pictured and does not include the actual tensioner or spring.
This idler assembly is known to fit following mini excavators:
• KOBELCO SK17SR-3 • KOBELCO SK17SR-5
• NEW HOLLAND E18SR • YANMAR VIO17
Alternate Part Number