Excavator Final Drive (Travel Motor) Replacement Cost: What to Expect

Real cost ranges for replacing a final drive or travel motor on an excavator. Covers all machine classes, when to use reman vs. OEM, and how to check if the cost makes sense before you commit.

A travel motor that stops turning on an excavator is a known failure point, especially on machines in the 5,000-8,000 hour range. The repair is straightforward when caught before secondary damage, and expensive when it isn't. Here is what the job involves and what it should cost.

What the Job Involves

Replacing a final drive (travel motor plus planetary hub) means lifting or blocking the track, removing the track chain or releasing tension to pull the track, unbolting the final drive assembly, and installing the replacement. The track removal is the time sink on the job, not the drive itself. On machines with rubber tracks the work goes faster. Steel track with a sealed undercarriage adds time.

If the travel motor failed by throwing metal, the hydraulic system needs to be flushed to prevent the debris from damaging valves and the other travel motor. That flush adds cost and time beyond the drive replacement itself.

Typical Cost Ranges

Machine Class	Example Models	Labor Hours	Parts Cost	Total Estimate
Mini excavator	Bobcat E35, Kubota KX040, Cat 305	3-6 hrs	$600-$2,000	$1,000-$3,100
Small excavator	Cat 308, JD 75G, Kubota U55	5-8 hrs	$1,500-$3,500	$2,100-$4,900
Mid-size excavator	Cat 320, Komatsu PC200, JD 210G	7-12 hrs	$3,000-$7,500	$3,900-$9,600
Large excavator	Cat 336, Volvo EC350, Komatsu PC360	9-16 hrs	$5,500-$14,000	$6,600-$17,000

Ranges reflect shop rates of $125-$175/hr and reman or quality aftermarket drive units. Motor-only vs. complete final drive assembly changes the parts cost significantly. OEM new units add 30-60% to the parts line.

Motor-Only vs. Complete Final Drive

This is the first decision the shop will face. The travel motor (hydraulic motor) and the planetary gearbox are usually sold and replaced as a complete final drive assembly. Replacing just the motor and reusing the planetary is possible when the gearbox is in good condition, but it requires inspection and adds risk if the gearbox is worn.

Most shops recommend replacing the complete assembly when:

The machine has 5,000+ hours and the gearbox hasn't been serviced
Gear oil from the planetary was contaminated or low (indicates wear)
The travel motor failed with metal contamination (risk to the gearbox)

On a well-maintained machine under 4,000 hours where the failure was a seal or bearing rather than a catastrophic event, motor-only replacement is a reasonable option.

Signs a Travel Motor Is Failing

One track drives slower or weaker than the other (uneven travel)
The machine drifts to one side when trying to track straight
Whining or grinding noise from one track side at low travel speed
Gear oil leak from the final drive housing (planetary seal failure)
Travel speed has gradually slowed over the last few hundred hours

Know the Machine's Value Before You Commit

A final drive replacement in the $4,000-$8,000 range is a straightforward maintenance decision on most working excavators. When it approaches $12,000-$17,000 on a large machine with high hours, knowing the machine's current market value is important before approving the work.

Run a free valuation on your excavator at EquipBook before committing to a major repair. Trade-in, private party, and dealer retail values in under 60 seconds, no account needed.

Want a ballpark on the repair cost before you get a quote? EquipBook's free repair cost estimator covers final drives, hydraulic pumps, engine rebuilds, and more across all major machine makes and models.