Mobile Diesel Repair Service - Phoenix & Chandler

On-Site Diesel Truck Repair: We Bring The Shop To You, Keep Your Fleet Moving.

No costly towing. No wasted downtime. Just expert on-site service, anytime you need it.

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We are certified vendOrs For

Hear from our people

  • Missed Deadlines Broken trucks mean angry customers and lost contracts.

  • Lost Revenue Every idle hour costs you earnings.

  • Long Shop Waits Days of towing, scheduling, and waiting while competitors run.

  • Compliance Risk DOT violations and failed inspections ground your fleet.

Downtime Costs You Money.

We Save You Time & Profit.

  • 24/7 Mobile Service We come to you, no towing, no waiting, anywhere, anytime.

  • Certified Techs ASE-certified heavy-duty specialists who get it right the first time.

  • Faster Turnaround Most repairs done on-site in hours, not days.

  • Lower Total Cost No towing fees, no inflated rates, less downtime = more profit.

What Our Mobile Diesel Service Covers

  • Oil changes and lubrication

  • Annual DOT and BIT inspections

  • Engine diagnostic

  • Electrical, Fuel, Hydraulic, & Lighting System

  • Suspension, Drivetrain, & Brake Repairs

  • A/C System Diagnostic & repair

  • Carb testing

  • Tire services

Why Fleet Managers Trust KTS Diesel Mobile

  • Zero Service Call Fees for 30 Days

    No extra emergency breakdowns or on-site service costs.

  • Priority Response

    Skip the waitlist! Your fleet gets top priority for faster service.

  • Preventive Maintenance Plan

    Regular inspections and tune-ups to stop breakdowns before they happen.

  • Exclusive Fleet Performance Report

    Detailed data and insights on how to reduce costs and improve efficiency.

  • Discounted Repairs & Parts

    Save money with exclusive discounts on labor and parts.

  • 24/7 Fleet Support Line

    Your dedicated fleet expert is just a call away, day or night.

Schedule your mobile fleet repair
Request A Free Quote

Your Concerns, Answered: Why Our Mobile Fleet Service Works for You

Isn’t mobile service too expensive?
While mobile rates may seem higher than traditional shop rates, they save money by reducing downtime, towing costs, and hidden expenses associated with taking a truck off the road.

Can you truly do everything on-site?
 Not all repairs can be completed in the field. While our mobile units are equipped to handle diagnostics, routine maintenance, and many mechanical issues on-site, certain repairs require shop-grade equipment, lifts, or advanced tooling. When that’s the case, we’ll schedule transport or coordinate service at our facility to ensure the repair is done safely and to spec.

We already have a guy, why switch?
 We understand loyalty, but our expertise, efficiency, and reliability may offer you better service, faster response times, and cost savings.

I can’t afford any downtim. Willl this disrupt operations?
Mobile service is designed to minimize downtime by servicing your trucks on-site and on your schedule, keeping them in rotation.

We don’t have time to schedule maintenance.
Skipping maintenance leads to costly breakdowns. We offer flexible scheduling and on-site service to keep your fleet running smoothly.

How do I know you’ll show up on time?
Reliability is key. We provide confirmed appointment times, real-time updates, and a commitment to punctual service.

I’m not sure what I’m getting for the price.
We provide clear, upfront pricing with no surprise , detailing what’s included, optional add-ons, and cost-effective service plans.


Schedule your mobile fleet repair