Excavator Repair Cost
A alternator replacement on a Caterpillar 320 typically runs $600-$2,300 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 320 alternator
$600-$2,300
estimated total, parts and labor
Labor hours
1-4 hrs
Shop rate
$125-$175/hr
Parts
$450-$1,600
* Static estimate from heavy-equipment norms, not a quote. Real cost depends on parts source, access, and collateral damage.Get an exact estimate →
Removing belts and any guarding, unbolting the alternator, transferring or replacing the pulley, and installing the new unit. Usually a quick job unless the alternator is buried behind the AC compressor or emissions plumbing.
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 alternator repair at $600-$2,300 is usually worth it on a Caterpillar 320, but it pays to know the machine's current value first.
See Caterpillar 320 resale value →Hydraulic Pump Replacement
$6,000-$14,400
Final Drive / Travel Motor Replacement
$4,600-$14,600
Undercarriage Replacement
$8,550-$52,000
Engine Rebuild / Replacement
$14,700-$53,450
Hydraulic Cylinder Reseal / Replacement
$1,200-$7,650
Fuel Injector / Injection System Repair
$2,100-$13,150
A/C Compressor / System Repair
$1,000-$4,600
Starter Motor Replacement
$700-$2,650