Wheel Loader Repair Cost
A hydraulic cylinder reseal / replacement on a Komatsu WA320-8 typically runs $800-$4,750 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 WA320-8 hydraulic cylinder
$800-$4,750
estimated total, parts and labor
Labor hours
3-8 hrs
Shop rate
$125-$175/hr
Parts
$400-$3,350
* Static estimate from heavy-equipment norms, not a quote. Real cost depends on parts source, access, and collateral damage.Get an exact estimate →
Removing the cylinder (boom, arm, bucket, lift, or tilt), then either resealing it with a new seal kit and honing the barrel, or replacing the cylinder outright if the rod is scored or bent. Resealing is far cheaper than replacement when the barrel and rod are still good.
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 hydraulic cylinder repair at $800-$4,750 is usually worth it on a Komatsu WA320-8, but it pays to know the machine's current value first.
See Komatsu WA320-8 resale value →