25+ Years Mobile Truck Repair
Truck & Trailer Repair in Phoenix, AZ —
Shop & Mobile Service
Semi Truck Repair, Mobile Diesel Mechanics & Roadside Assistance Across the Phoenix Metro
Emergency Roadside Truck & Trailer Repair is Phoenix's go-to family-owned diesel mechanic for medium & heavy-duty truck repair, commercial fleet maintenance, and mobile & roadside assistance services. With fully-equipped mobile service units, we come to your breakdown — no towing, no waiting. Give us a call now to schedule!
Semi Truck & Trailer Repair Shop in South Phoenix
Family-owned and operated since 1999, Emergency Roadside Truck & Trailer Repair brings over 25 years of experience to the commercial vehicle repair industry. From our shop at 315 E Pioneer St we provide semi truck repair, trailer repair and diesel engine repair, and our mobile truck repair units bring the shop to you anywhere in the Phoenix metro. Our mobile units feature the latest diagnostic equipment and are staffed by certified diesel mechanics who specialize in heavy-duty vehicle maintenance and repair.
At Emergency Roadside Truck, integrity is our cornerstone — we prioritize trust over profit, ensuring every job is done with the utmost precision and honesty. Choose us for dependable, expert care of your truck, where we stand by our work with courage and commitment.
About Us
Trusted by Hundreds of Phoenix Drivers
We're deeply proud of our team's commitment to speed, transparency, and uptime. When minutes matter, our diagnostics-driven approach keeps your trucks earning — and hundreds of drivers, owner-operators and fleets have shared their experience with us in more than 600 Google reviews.
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Family-Owned & Certified Diesel Mechanics
From owner-operators with a single truck to fleet managers overseeing dozens of vehicles, you get the same level of care from our team. We invest in the latest diagnostic equipment, use quality replacement parts, and back all of our work with a commitment to your satisfaction.
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Our Mobile Diesel Mechanic Services
Explore our comprehensive range of diesel mechanic services. Specializing in semi repair, diesel engine, DOT inspections, preventive maintenance, and complete commercial fleet services, our team ensures your heavy-duty vehicles meet the highest standards of safety and efficiency — on-site at your location.
Semi Truck Repair
Professional repair for all major brands including Peterbilt, Kenworth, Freightliner, Mack, Volvo, and more.
Mobile Truck Repair
We bring the shop to you. 100% mobile service covering all of Phoenix and the surrounding metro.
Diesel Engine Repair
Expert diagnostics, overhaul, and rebuilds for heavy-duty diesel engines to get you back on the road fast.
Fleet Maintenance & Repair
Preventive maintenance tailored for your entire fleet to minimize downtime and keep you moving.
DOT Inspections
Stay compliant with thorough, certified DOT inspections performed at your yard or anywhere in Phoenix.
Air Brake Repair
Complete air brake system inspection, diagnostics, and repair for reliable stopping power.
Exhaust & Aftertreatment
DPF, DEF, EGR, and full exhaust service to restore power, fuel economy, and emissions compliance.
A/C System Repair
Complete diagnostics and repair for your semi truck cabin cooling systems — beat the Arizona heat.
Wheel Alignment
Extend tire life and improve fuel economy with precise heavy-duty truck and trailer alignment.
Suspension Repair
Shocks, leaf springs, and air suspension repairs for a smooth, safe ride under heavy loads.
Transmission & Clutch
Automatic and manual transmission repairs, fluid servicing, and clutch adjustments or replacements.
Diagnostics & Electrical
Advanced computer diagnostics, wiring repair, lighting, batteries, and alternator replacements.
RV & Motorhome Repair
Heavy-duty engine and chassis repairs for your RV or motorhome, brought directly to your location.
Preventive Maintenance
Scheduled maintenance that prevents breakdowns, reduces costs, and keeps your trucks on the road.
Roadside Assistance
Emergency mobile dispatch to your breakdown anywhere in the Phoenix metro — no towing required.
Trailer Repair
Dry van, reefer, flatbed, and specialty trailer repair at your yard or on the road.
Heavy Equipment Repair
Mobile diesel and hydraulic repair for construction and material handling equipment.
Welding & Fabrication
Structural repairs and custom metalwork for commercial trucks and trailers.
Lift Gate Maintenance & Installation
Lift gate repair, maintenance, and installation to keep your deliveries running.
Crane Inspection & Maintenance
Inspection and maintenance for knuckle-boom and vehicle-mounted cranes.
Hi-Rail Inspection & Maintenance
Inspection and maintenance for rail-highway vehicles and their unique components.
Forklift Maintenance & Repair
On-site hydraulic, electrical, and mast repair for warehouse material handling fleets.
Our Commercial Truck Repair Services
We specialize in maintaining vital truck systems, including brakes, exhaust, and transmission, ensuring your fleet operates at peak performance. Our diesel mechanic team is equipped with advanced diagnostic tools to identify and resolve issues efficiently.
Engine Repair
Complete diesel engine diagnostics and repair services by certified technicians.
⚙️Transmission & Clutch
Expert transmission and clutch repair to keep your truck shifting smoothly.
🛑Brake Repair
Full air brake inspection, repair and replacement for maximum safety on the road.
🌿Suspension Repair
Expert suspension diagnostics and repair for medium and heavy-duty trucks.
🛞Axle Repair
Professional axle repair and service to keep your heavy-duty trucks on the road.
🔗Driveline Repair
Full-service driveline repair, rebuilds, and maintenance for commercial trucks.
⚡Diagnostics & Electrical
Advanced diagnostic tools and electrical repair to solve the toughest truck problems.
💧Hydraulic Repair
Low pressure or fluid loss? We identify the source and keep your systems working.
🌫️EGR & DPF Repair
Specialized EGR and DPF repair to restore performance and meet emissions standards.
💨Exhaust System Repair
Proper exhaust maintenance keeps emissions in compliance and engines efficient.
❄️Coolant System Repair
Prevent overheating and engine damage with professional coolant system service.
🌡️HVAC / A/C Systems
Keep your cab comfortable with professional HVAC inspection and repair services.
Why Phoenix Truckers Choose Us
Manufacturers We Specialize In
Proudly Serving the Phoenix Metro Area
Based in Phoenix, our mobile units reach every corner of the metro — from Glendale to Gilbert. If your truck is down, we'll be there.
Truck Repair Reviews From Phoenix Drivers
Real reviews from our customers on Google. Read more reviews or leave us one!
"Very fast service. Genesis and Eli were very kind and helpful. Awesome customer service!"
"Awesome service. Called for roadside assistance, driver was routed ASAP to the rescue. Everyone was polite, professional and genuinely felt they had a sense of urgency in our time of need. Would highly recommend Emergency Roadside Truck and Trailer Repair. Thank you guys very much!"
"We drove to their shop with our RV and they got us in immediately. They did diagnostics and determined that #5 injector was bad. They were able to locate an injector, installed it same day and we were back on the road within hours. They were very personable and Eli did an awesome job of keeping us informed every step of the way. Thank you again! We highly recommend this shop!!"
"This fixed my acm for volvo no communication. They fixed within two hours. They are faster than Volvo dealer. Dealer told me long wait time. Eli took care of me"
"Mike and Luis fixed my freightliner on a Saturday when the other shops were closed. Got me in and out same day. They have the Def pumps in stock"
"Excellent service. Recommended me to go to an official carrier dealership because it would be under warranty. High level of ethics!"
"These guys did a great job for me, I had a truck at Rush truck to repair a tensioner pully on a C15 cat and 2 drive belts. Rush quoted me 1600 for the repair plus parts and 2 days time. I limped it to Emergency Roadside Truck and Trailer Repair — done in 2 hours and 400 dollar bill. THANK YOU"
"Called around, nobody could replace my radiator same day. Emergency Roadside got it done in a couple hours with fair price, 10/10 trust them with your trucks 👍"
Truck Repair FAQs — Phoenix, AZ
Answers to the questions we hear most from drivers and fleet managers across the Phoenix metro.
We dispatch immediately and aim to reach you as quickly as possible anywhere in the Phoenix metro. Response times vary with traffic and technician availability.
No. We are 100% mobile — our fully equipped units come to your breakdown, fleet yard, or job site, saving you expensive towing fees.
We service all major makes including Peterbilt, Kenworth, Freightliner, Mack, Volvo, International, and Western Star.
Monday through Friday, 7:00 AM to 10:00 PM, and Saturday, 7:00 AM to 2:00 PM. Closed Sunday. For emergencies, call us — we prioritize breakdowns.
Our units carry the most common parts. For specialized components, we source them quickly from local suppliers to minimize your downtime.
Yes. We provide scheduled preventive maintenance tailored to your entire fleet, helping you reduce breakdowns and lower operating costs.
Contact Emergency Roadside Truck
Get in touch today for professional medium & heavy-duty truck & fleet repairs, delivered via mobile service across the entire Phoenix metro area.
315 E Pioneer StPhoenix, AZ 85040
Truck Down? Don't Wait — Call Now.
Every minute of downtime costs you money. Our mobile mechanics are standing by to get you back on the road — fast, anywhere in the Phoenix metro area.