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Yanmar VIO20-2 Tension Idler

772456-37100 VIO20-2 Idlers
Rubbertrax
Yanmar VIO20-2 Tension Idler
Buy aftermarket parts for your Yanmar VIO20-2 and VIO20-3 online at Rubbertrax and save money versus going to the dealer. This is the aftermarket replacement tension idler for your Yanmar VIO20-2 and VIO20-3 mini excavator. Save online and skip the trip to the dealer. This idler ships for free when you buy online. This idler is not interchangeable with the original VIO20 model.
SKU: 772456-37100
Weight: 40 lbs
Make: Yanmar
Shipping: Fast and Free!
Price: $375.00

Rubber tracks and wear parts are sold individually unless specified in the details. We offer free shipping across the USA when you order online and ship to a commercial address. *Some restrictions apply.

772456-37100 Yanmar Front Idler

This is the premium aftermarket tension idler for the following Yanmar mini excavator models:

  • Yanmar VIO 20-2
  • Yanmar VIO 20-3

If your track appears to be stretching or falls off when you are turning, then it is a good indication that your idler is worn out. At first glance, the idler appears to be in good condition but when you compare how deep a new idler sets into the guide system you realize that the flange that sets into the track guiding system might be worse than you first thought. Rubber tracks are continuously wrapped with steel cords so they do not stretch during normal operation more than the tensioner can adjust out. The reason the tensioners are there is to tighten the track over the course of your undercarriage wear. Sprocket wear, track link wear, and idler wear all add up to several inches of slack in the rubber track. At a certain point of wear the parts have to be changed. We do not suggest replacing a sprocket on a worn track but replacing the tension idler can bring several inches of tension back to your undercarriage.

There is one tension idler per side on your Yanmar VIO20-2 and -3 series mini excavator.


There are several newer sub-series of VIO-20 models so if your model is newer than a -3 series then please verify with us prior to ordering online.


Alternate Part Numbers

  • Yanmar Dealer Part Number: 772456-37100

Alternate Models

This idler assembly (772456-37100) is known to fit:

  • Yanmar SV20
  • Yanmar VIO20-2
  • Yanmar VIO20-3

Yanmar Parts

These single flange idler assemblies are made to original specifications and produced with high quality double lip seals to lock dirt and debris out and lock the lubrication in for long lasting service for your machine. Our idlers are fully assembled including the yokes. They arrive ready to slide into the track frame.
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