Mini Excavator Repair Cost
A undercarriage replacement on a Komatsu PC55MR typically runs $3,150-$18,600 all in. Below is the labor and parts breakdown, what drives the cost up or down, and how to get an exact number for your machine.
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Komatsu PC55MR undercarriage
$3,150-$18,600
estimated total, parts and labor
Labor hours
6-17 hrs
Shop rate
$125-$175/hr
Parts
$2,400-$15,600
* Static estimate from heavy-equipment norms, not a quote. Real cost depends on parts source, access, and collateral damage.Get an exact estimate →
Replacing wear parts as a set: track chains, rollers (top and bottom), idlers, sprockets, and the track shoes or rubber tracks. A full undercarriage is a big-ticket maintenance item, not a single failure, and is usually done all at once to avoid re-tearing the machine down.
The range above moves with these factors. The biggest swing is usually parts source and whether the failure damaged anything downstream.
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A undercarriage repair at $3,150-$18,600 is usually worth it on a Komatsu PC55MR, but it pays to know the machine's current value first.
See Komatsu PC55MR resale value →