
Iron HorseMobile Repair
Advanced diagnostics, hydraulic repair, diesel troubleshooting, and machine-down response delivered directly to Utah jobsites.
WE BRING THE SHOP
TO YOUR IRON
I've spent 25 years in the Utah dust—we skip the $1,500 haul bill and bring the shop directly to your jobsite. Expert diagnostics, heavy hydraulics, and mobile diesel repair.

Mobile heavy equipment & diesel repair services
I've been around the block enough times to know that a dead machine is just a fancy paperweight! At Iron Horse Field Service, we specialize in bringing the shop to the dirt. We provide expert mobile repair for everything from 50-ton excavators to diesel fleet trucks.
Our mission is simple: provide rugged, professional service that keeps your project on schedule and your profit margins intact. Whether you are running Caterpillar, Komatsu, or John Deere, our service trucks are outfitted with the latest diagnostics and tools to handle the heavy stuff right where the machine sits.
Technical Expertise
Onsite Capability
- Advanced Diesel Diagnostics
- Hydraulic Pump & Motor Repair
- Onsite Cylinder Repacking
- Mobile Welding & Fabrication
- Heavy Equipment Electrical
- Undercarriage Inspections
- Fleet Maintenance Programs
- Jobsite-focused field service
Diesel Engine Repair
Rugged diesel diagnostics and field repair right where your machine sits. We support CAT, Cummins, and Deere.
Service DetailsHydraulic Service
Expert hydraulic troubleshooting, pump testing, and onsite cylinder repacking.
Service DetailsHeavy Diagnostics
Dealer-level software to clear codes, find technical faults, and resolve limp mode.
Service DetailsPowertrain & Drivetrain
Field diagnostics for transmissions, final drives, and heavy equipment powertrain components.
Service DetailsUndercarriage
Track tensioning and onsite roller/idler inspections to maximize machine life.
Service DetailsFleet Maintenance
Scheduled PM service and oil sampling in your yard to prevent breakdowns.
Service DetailsHOW WE KEEP YOU DIGGING
We’ve spent 25 years refining our field workflow to minimize machine downtime.
Rapid Intake
Submit your symptoms and machine location. We triage your request and prepare the specific diagnostics before the truck leaves the yard.
Expert Onsite Triage
Our technician arrives with fully stocked rigs. We find the root cause—not just the symptoms—using dealer-level software and gauges.
Documented Field Fix
We perform the repair onsite. No trailers, no shop waitlists. You get a professional jobsite sign-off and clear path back to production.
Customer Proof
Trusted by Utah's Field Operators
Real feedback from heavy equipment operators, contractors, and home builders who rely on our 25+ years of mobile expertise.
2 verified Google reviews



Meet John Batts
If you've been in the heavy iron game in Utah for more than five minutes, you know that John Batts is the guy you call when no one else can figure it out. With over 25 years of experience in hydraulics, diesel engines, and complex diagnostics, John leads our field operations with a level of expertise that's becoming rare in this industry.
He's not just a lead technician; he's a mentor to our team and a trusted advisor to fleet owners across the region. When John shows up to your jobsite, you can breathe a sigh of relief knowing that the "expert" has actually arrived. No "dispatch" excuses, no runaround—just professional service you can bank on.
TRUSTED MOBILE MECHANIC SERVICE FOR HEAVY EQUIPMENT
When you're looking for a heavy equipment mechanic in Utah, you don't just want someone who can turn a wrench—you want a team that understands the high stakes of your project. Iron Horse Field Service provides expert onsite diagnostics and repair across the Wasatch Front and beyond.
From Salt Lake City to Tooele and Ogden to Provo, we bring professional-grade service directly to your machine. We specialize in minimizing downtime through accurate diagnostics and fast, rugged field service that saves you from the cost and hassle of hauling. We are surgeons in the dirt, keeping the Intermountain West moving.
Popular Service Areas

IRON IN THE DIRT
A look at our recent onsite technical solutions across Utah's most demanding jobsites.

CAT 289D skid steer hydraulic leak — Tooele, UT
Hydraulic fluid loss on a compact track loader at a grading site in Tooele.

Komatsu PC200 no-start diagnostic — Salt Lake City, UT
Interior excavator crank-no-start at an I-15 industrial corridor site.

John Deere 624K loader overheating — Grantsville, UT
Coolant loss and high engine temps on a wheel loader at a Grantsville aggregate yard.

Mobile welding boom crack repair — Tooele County, UT
Structural crack in excavator boom arm repaired onsite at a Tooele County mining site.
LET'S GET THAT IRON MOVING
I know you're busy, so we'll keep this simple! Tell us what equipment you're working with, where the machine is, and what's going on. We follow up fast to get a technician headed your way.
Direct Field Line
(385) 223-7570Latest Notes from the Field
Field Intelligence
Practical insights on heavy equipment maintenance, hydraulic health, and fleet management in Utah.
Preventative Maintenance
Summer Survival: Why Utah Heat Kills Hydraulics
A practical guide to heavy equipment cooling, hydraulic heat management, and summer maintenance in the Utah desert.
Equipment Strategy
Diesel vs. Gas: Which Engine is Right for Your Utah Fleet?
Comparing the performance, maintenance, and long-term TCO of diesel and gasoline engines in heavy equipment and service trucks.
Equipment Strategy
Cat, Komatsu, or Deere? A Mechanic’s Honest Comparison for Utah Owners
The real-world pros and cons of the "Big Three" heavy equipment brands based on 25 years of field service in the Intermountain West.
Support & FAQ
HEAVY EQUIPMENT REPAIR FAQ
I know you need answers fast when a machine is down. Here is everything you need to know about our mobile field service, technical capabilities, and how we help Utah contractors stay on schedule.
Do you come to my jobsite?
Yes. Iron Horse Field Service is a mobile operation designed to support contractors where they work. We bring diagnostic equipment, repair tools, and field-service capability to the jobsite, yard, or pit when the machine can be safely accessed. Onsite work can avoid unnecessary transport, but the right field-versus-shop decision depends on the failure, access, tooling, and manufacturer requirements.
What areas do you service across Utah?
Our primary service areas include Tooele County, Salt Lake City, West Valley City, Ogden, Park City, Provo, and nearby Utah markets. We also review requests from remote jobsites and longer-distance locations based on access, timing, project scope, and technician availability. Share the exact location so we can confirm whether the requested work is practical for a field visit.
What specific types of heavy equipment repairs do you handle?
Iron Horse Field Service provides expert-level mobile repair for a wide variety of heavy equipment, diesel trucks, and industrial machinery. Our core capabilities include advanced diesel engine diagnostics (Caterpillar, Cummins, John Deere, etc.), complex hydraulic troubleshooting, onsite cylinder repacking, and structural mobile welding for boom or bucket cracks. We also specialize in interpreting technical fault codes, resolving "limp mode" issues, and performing preventative maintenance audits, backed by over 25 years of specialized field experience in demanding Utah environments.
Do you have a physical shop location for drop-offs?
We are a mobile field service provider and do not operate a customer-facing shop for drop-offs. Field work can be efficient when the machine is accessible and the repair is suitable for the jobsite. Some work still requires machining, controlled shop conditions, component rebuilding, or specialty tooling; in those cases, we can explain the field findings and help plan the next step.
Do you offer warranty coverage on your field repairs?
Any workmanship or parts coverage depends on the written estimate, invoice, parts supplier, and specific repair. We document the repair scope and can explain the applicable terms before work begins. Manufacturer parts warranties, when available, are controlled by the part supplier or manufacturer and may have separate conditions. Ask us to confirm the coverage for the specific job rather than relying on a general statement.
How do I schedule an onsite service call?
Submit a request through the form on our website or call the direct field line. Please include the machine make and model, any dashboard codes or photos, the exact jobsite location, the symptom, and whether the machine is safe to approach. We review machine-down requests and confirm the next available service window and likely diagnostic path after receiving those details.
How quickly can a technician respond to my jobsite?
Response timing depends on the jobsite, urgency, travel distance, technician availability, parts, and the requested work. We review machine-down requests and confirm the next available service window after receiving the machine details and location. A request for timing is most useful when it includes the symptom, access conditions, warning codes, and whether the machine is safe to approach.
"I've spent my entire career in the Utah dirt. I know that when your iron stops, your profit stops. Our mobile service is built to be the most rugged, professional, and responsive solution for heavy equipment repair in the Intermountain West. If you don't see your question here, give me a call directly and let's get your machine back to work."— Johnathan Batts, Lead Field Technician
STILL HAVE QUESTIONS?
Our field technicians are ready to provide the expert advice and onsite repair you need. Request a call or call our direct Utah field line today.