Track Roller / Bottom Roller For Yanmar VIO40-1 Mini Excavator – Undercarriage Part 30439

This is a brand new bottom track roller for a Yanmar VIO40-1 mini excavator.

It's a key part of the undercarriage, often called a track roller or bottom roller.

The part number is 30439.

It's made in China and is a direct replacement for the original.

If your tracks are wearing unevenly or you're getting a rough ride, this might be the part you need.