Mobile Diesel USA

Off-Highway Diesel Repair.

Heavy equipment and off-highway diesel repair dispatched to your job site. Excavators, loaders, generators — we come to the iron.

Why Mobile Diesel USA?

Your equipment can't drive to a shop. We drive to it.

Off-highway diesel equipment sits where it works — on construction sites, in quarries, at remote locations. When a dozer, excavator, or generator goes down, our mechanics come to the machine with the tools and expertise to get it running again.

  • Construction equipment repair on-site
  • Generator and power unit service
  • All major heavy equipment brands
  • Remote location capable

What We Cover

Off-Highway Diesel Repair services.

Our mobile mechanics carry the tools, parts, and expertise to handle these repairs at your location.

Engine Repair

Diesel engine diagnostics and repair for excavators, loaders, dozers, cranes, and other heavy equipment — Tier 4 emissions systems included.

Hydraulic Systems

Hydraulic pump, cylinder, hose, and valve repair for all types of hydraulic-driven equipment. On-site hose fabrication available.

Electrical & Starting

Battery service, starter and alternator repair, wiring harness troubleshooting, and control system diagnostics for heavy equipment.

Undercarriage & Tracks

Track adjustment, roller replacement, sprocket service, and undercarriage inspection for crawler-type equipment.

Generator & Power Units

Diesel generator diagnostics, repair, and maintenance — from portable job site generators to large standby power units.

Preventive Maintenance

Scheduled PM service at your job site — oil changes, filters, fluid analysis, and inspection to prevent unplanned downtime.

The Process

How it works.

1
Step 1

Describe the Equipment

Tell us the make, model, and year of the equipment, what's wrong, and the job site location. Access instructions help.

2
Step 2

Mechanic Dispatched

We send a heavy equipment specialist to your job site with the right tools and diagnostic equipment.

3
Step 3

Diagnose & Quote

Your mechanic inspects the machine, diagnoses the issue, and provides a quote before beginning repair work.

4
Step 4

Back in Operation

Repair is completed on-site and the equipment is tested under operating conditions before sign-off.

FAQ

Common questions

Our mechanics work on all major brands including Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Case, Kubota, and Bobcat. We also service diesel generators from Caterpillar, Cummins, Kohler, and Generac.

Yes. Our mechanics are equipped for field service and regularly work at construction sites, quarries, farms, and other remote locations. Let us know about any special access requirements when you submit your request.

Yes. Tier 4 Final emissions systems (DPF, DEF, SCR) on off-highway equipment use similar technology to on-highway trucks. Our mechanics diagnose and repair Tier 4 aftertreatment systems in the field.

Yes. We offer scheduled preventive maintenance programs where a mechanic visits your job site on a regular basis to service your equipment fleet — oil changes, filters, inspections, and fluid analysis.

Testimonials

What Our Network Says

“Blew a turbo hose on I-20 outside Dallas at 11 PM. Had a mechanic on-site in 25 minutes. Back rolling in under two hours. This service is a game-changer for owner-operators.”

Marcus Johnson

Dallas, TX

Truck Driver
“Had a DPF regen issue on I-40 near Memphis. The mechanic diagnosed it on-site and had me back on the road without a tow. Saved me at least $800 in towing fees alone.”

Derek Washington

Memphis, TN

Truck Driver
“My Cascadia threw a check engine light on I-10 in 115-degree heat. Within 30 minutes a mechanic was running diagnostics. Professional, fast, and fair on price.”

James Cooper

Phoenix, AZ

Truck Driver

Need This Service?

Get a mechanic dispatched.

Tell us what's wrong and where you are. We'll match you with a nearby diesel mechanic who specializes in this service.

Request Service

Diesel Mechanic?

Join our network.

If you specialize in mobile diesel repair, we want you in our network. Apply today and start getting dispatched to jobs.

Apply Now
Call (602) 456-9071