Mini Excavator Repair Cost

1995-2002 Komatsu PC50UU Engine Rebuild / Replacement Cost

A engine rebuild / replacement on a Komatsu PC50UU typically runs $5,750-$20,550 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.

39 HP11k lbs17-42 labor hrs
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Typical Repair Cost

Komatsu PC50UU engine rebuild

$5,750-$20,550

estimated total, parts and labor

Labor hours

17-42 hrs

Shop rate

$125-$175/hr

Parts

$3,600-$13,200

* Static estimate from heavy-equipment norms, not a quote. Real cost depends on parts source, access, and collateral damage.Get an exact estimate →

What's involved in a Komatsu PC50UU engine rebuild repair

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.

What affects the cost

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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Frequently asked questions

How much does a Komatsu PC50UU engine rebuild repair cost?
A engine rebuild / replacement on a Komatsu PC50UU typically runs $5,750-$20,550. That covers about 17-42 hours of labor at a $125-$175/hr shop rate, plus $3,600-$13,200 in parts. Your exact number depends on parts source (OEM vs. reman) and how much collateral damage there is. Get a free custom estimate at equipbook.ai/service/estimate.
How many labor hours is a Komatsu PC50UU engine rebuild job?
Plan on roughly 17 to 42 labor hours for a engine rebuild repair on a Komatsu PC50UU. Access and how the machine is configured can push that up or down.
What's involved in a Komatsu PC50UU engine rebuild repair?
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.
Is it worth fixing the engine rebuild on a Komatsu PC50UU?
At $5,750-$20,550, weigh the repair against the machine's current value. A Komatsu PC50UU in good condition is worth far more than this repair, so it usually pays to fix it. Check what your machine is worth first, then decide. Use the free valuation at equipbook.ai/value/komatsu-pc50uu.

Before you fix it, know what it's worth

A engine rebuild repair at $5,750-$20,550 is usually worth it on a Komatsu PC50UU, but it pays to know the machine's current value first.

See Komatsu PC50UU resale value →

Other Komatsu PC50UU repair costs

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 cost on other machines

Caterpillar 320

$14,700-$53,450

Caterpillar 325

$16,250-$59,100

Caterpillar 330

$16,250-$59,100

Caterpillar 305.5

$5,750-$20,550

Caterpillar 308

$9,000-$32,500

Caterpillar 262D3

$5,750-$20,550