Mini Excavator Repair Cost

2016-2026 Kubota KX040-4 Undercarriage Replacement Cost

A undercarriage replacement on a Kubota KX040-4 typically runs $3,150-$18,600 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.

40.4 HP9.2k lbs6-17 labor hrs
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Typical Repair Cost

Kubota KX040-4 undercarriage

$3,150-$18,600

estimated total, parts and labor

Labor hours

6-17 hrs

Shop rate

$125-$175/hr

Parts

$2,400-$15,600

* 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 Kubota KX040-4 undercarriage repair

Replacing wear parts as a set: track chains, rollers (top and bottom), idlers, sprockets, and the track shoes or rubber tracks. A full undercarriage is a big-ticket maintenance item, not a single failure, and is usually done all at once to avoid re-tearing the machine down.

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 Kubota KX040-4 undercarriage repair cost?
A undercarriage replacement on a Kubota KX040-4 typically runs $3,150-$18,600. That covers about 6-17 hours of labor at a $125-$175/hr shop rate, plus $2,400-$15,600 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 Kubota KX040-4 undercarriage job?
Plan on roughly 6 to 17 labor hours for a undercarriage repair on a Kubota KX040-4. Access and how the machine is configured can push that up or down.
What's involved in a Kubota KX040-4 undercarriage repair?
Replacing wear parts as a set: track chains, rollers (top and bottom), idlers, sprockets, and the track shoes or rubber tracks. A full undercarriage is a big-ticket maintenance item, not a single failure, and is usually done all at once to avoid re-tearing the machine down.
Is it worth fixing the undercarriage on a Kubota KX040-4?
At $3,150-$18,600, weigh the repair against the machine's current value. A Kubota KX040-4 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/kubota-kx040-4.

Before you fix it, know what it's worth

A undercarriage repair at $3,150-$18,600 is usually worth it on a Kubota KX040-4, but it pays to know the machine's current value first.

See Kubota KX040-4 resale value →

Other Kubota KX040-4 repair costs

Hydraulic Pump Replacement

$2,200-$5,300

Final Drive / Travel Motor Replacement

$1,700-$5,250

Engine Rebuild / Replacement

$5,750-$20,550

Hydraulic Cylinder Reseal / Replacement

$500-$2,950

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

Undercarriage Replacement cost on other machines

Kubota SVL95-2

$3,150-$18,600

Bobcat T770

$3,150-$18,600

Bobcat T870

$3,150-$18,600

Bobcat T740

$3,150-$18,600

Caterpillar 299D3

$3,150-$18,600

Bobcat E35

$3,150-$18,600