24/7 I-40 Mobile Truck Repair and Roadside Services

Mobile Truck Repair & Diagnostics from Seligman to Barstow

Fast, reliable 24/7 roadside assistance and commercial truck repair along the I-40 corridor from Seligman, AZ to Barstow, CA, and US-95 from Searchlight, NV down to Vidal, CA and Parker, AZ. Dispatched directly from our home base in Fort Mohave, AZ, we bring a mobile service vehicle directly to your breakdown location to reduce downtime when roadside repair is practical. For Kingman-area commercial truck calls, see mobile diesel repair in Kingman AZ.

When you call or text dispatch, send your highway, mile marker or nearest exit, truck symptoms, visible fault codes, and any safety constraints around the shoulder or load.

Logo for TRT Road Service featuring a red semi-truck flanked by wrenches and engine components.
Black Chevrolet 2500 HD service truck with TRT Road Service branding for mobile diesel repair in Mohave Valley AZ.
Your Trusted I-40 Diesel Mechanics

24/7 Commercial Truck Repair Delivered to Your Breakdown Location

TRT Road Service provides mobile diesel repair and diagnostics for commercial trucks along Arizona’s I-40 corridor & AZ-95. Tennessee dispatches from the Fort Mohave area with mobile roadside support, JPRO diagnostics where applicable, and practical repair help for drivers, owner-operators, and fleet dispatchers. When your truck breaks down, call or text with your location, symptoms, and fault codes so we can prepare the right response. For aftertreatment derate and regen faults, review DPF and DEF system repair.

Veterans Discount Available

We proudly offer a discount to all veterans and active military personnel as a thank you for your service. Call us for details when you need roadside diesel repair.

Mobile Heavy-Duty Roadside Services

On-Site Diesel Engine, Electrical & Air Brake Repair

Mobile roadside diesel repair and diagnostics for heavy-duty commercial trucks throughout the I-40 corridor and AZ-95 from Bullhead City to Parker, AZ. TRT is mobile roadside support; towing and shop-based fleet maintenance are not included unless separately approved. For river-corridor coverage, see mobile diesel repair in Bullhead City and Mohave Valley AZ. For battery, charging, starter, wiring, and no-start calls, see mobile truck electrical repair and no-start diagnostics. For the broader route network, see the TRT mobile truck repair service area.

Engine Diagnostics

Advanced computer diagnostics to quickly identify and resolve engine issues with precision.

Dealer-Level Diagnostics

Stop guessing and start fixing. We use advanced software to clear codes, force regens, and pinpoint faults directly on-site.

Learn more

Electrical Systems

Professional electrical system repair including batteries, alternators, starters, and wiring issues.

Mobile Electrical Repair

Don't let faulty wiring or a dead alternator keep you sidelined. We provide rapid mobile troubleshooting and part replacements.

Fix Electrical Issues

Heavy-Duty Jump Starts

Fast battery jump-start service to get your diesel truck running when you need it most.

24/7 Jump Starts

12V or 24V commercial jump starts available around the clock. We’ll get your heavy-duty rig fired up and back on the I-40 fast.

Request a Jump

Mobile Tire Service

Professional commercial truck tire change service. We come to you with the right equipment and expertise.

Fast Roadside Tire Swaps

Blowout on the highway? We deliver safe, rapid mobile tire swaps and tire repair services for semi-trucks and commercial trailers.

Need a Tire Change?

Emergency Fuel Delivery

Emergency diesel fuel delivery when you run out. We bring the fuel directly to your location.

Diesel Delivery & Priming

Run dry on a steep grade? We provide diesel fuel support where available and can prime your engine so you can safely make it to the next truck stop when conditions allow.

Get Fuel Now

Air Leaks & Brakes

Mobile repair for air leaks, brake chambers, and airlines to help address air/brake faults safely.

Fast Air System Fixes

Don't let an air leak lock up your brakes. We replace air valves, lines, and brake chambers right on the shoulder so you can keep rolling.

Fix My Air System

DPF Systems & Emissions

Mobile troubleshooting, forced regens, and DPF filter maintenance.

Mobile troubleshooting, forced regens, and DPF filter maintenance to help address emissions-related faults when roadside diagnostics and repair are practical.

Diagnose My Emissions

Reduce Downtime When Roadside Repair Is Practical

When your diesel truck breaks down on the highway, details matter. Call or text TRT Road Service with your mile marker, nearest exit, truck symptoms, and visible fault codes so mobile dispatch can prepare for the roadside repair.