The 4392416 is highly interchangeable among many John Deere and Hitachi mini excavators. The top carrier roller is easy to replace without removing the rubber tracks. This is the replacement upper carrier roller for the following mini excavator models:
This is the smaller roller at the top of the undercarriage towards the center of the track that holds the track up and prevents it from sagging into the track frame. No additional hardware is required, simply loosen and remove the old roller and slide the new roller in and tighten it down.
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