Dozer Repair Cost
A engine rebuild / replacement on a Komatsu D65PX-18 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 D65PX-18 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.
Describe the job on your Komatsu D65PX-18 and get a tailored labor, parts, and total range. Free and instant.
A engine rebuild repair at $16,250-$59,100 is usually worth it on a Komatsu D65PX-18, but it pays to know the machine's current value first.
See Komatsu D65PX-18 resale value →Hydraulic Pump Replacement
$6,700-$16,050
Final Drive / Travel Motor Replacement
$5,150-$16,400
Undercarriage Replacement
$9,550-$58,650
Hydraulic Cylinder Reseal / Replacement
$1,300-$8,500
Fuel Injector / Injection System Repair
$2,350-$14,700
A/C Compressor / System Repair
$1,100-$5,050
Alternator Replacement
$650-$2,550
Starter Motor Replacement
$750-$2,950