Wheel Loader Repair Cost
A engine rebuild / replacement on a Komatsu WA500-3 typically runs $16,250-$59,100 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 WA500-3 engine rebuild
$16,250-$59,100
estimated total, parts and labor
Labor hours
32-81 hrs
Shop rate
$125-$175/hr
Parts
$12,250-$44,900
* Static estimate from heavy-equipment norms, not a quote. Real cost depends on parts source, access, and collateral damage.Get an exact estimate →
Pulling the engine (or doing an in-frame), inspecting the block, and replacing pistons, rings, bearings, gaskets and seals, or dropping in a reman long block. Tier 4 emissions hardware (DPF, EGR, aftertreatment) adds labor and parts on newer machines.
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 engine rebuild repair at $16,250-$59,100 is usually worth it on a Komatsu WA500-3, but it pays to know the machine's current value first.
See Komatsu WA500-3 resale value →