Mini Excavator Repair Cost
A hydraulic cylinder reseal / replacement on a Caterpillar 305 CR typically runs $500-$2,950 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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Caterpillar 305 CR hydraulic cylinder
$500-$2,950
estimated total, parts and labor
Labor hours
2-6 hrs
Shop rate
$125-$175/hr
Parts
$250-$1,900
* 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 $500-$2,950 is usually worth it on a Caterpillar 305 CR, but it pays to know the machine's current value first.
See Caterpillar 305 CR resale value →Hydraulic Pump Replacement
$2,200-$5,300
Final Drive / Travel Motor Replacement
$1,700-$5,250
Undercarriage Replacement
$3,150-$18,600
Engine Rebuild / Replacement
$5,750-$20,550
Fuel Injector / Injection System Repair
$800-$4,850
A/C Compressor / System Repair
$350-$1,800
Alternator Replacement
$300-$900
Starter Motor Replacement
$350-$1,000