
About Weldon's Truck & Trailer
Your trusted partner for 24/7 emergency truck and trailer repair services in Kingman, Arizona and the surrounding region. ASE certified technicians, fast response times, and honest, reliable repair services for semi trucks, trailers, and commercial vehicles.
Keeping Truckers Moving Since Day One
Weldon's Truck & Trailer was founded with a simple mission: provide fast, reliable, and honest truck repair services to drivers when they need it most. Based in Kingman, Arizona, we've grown to serve a 200-mile radius that includes major trucking corridors across Arizona, Nevada, and California.
Our founder, [Owner name — to confirm], started this company after years of working as a diesel mechanic and seeing firsthand the challenges truckers face when dealing with breakdowns far from home. The business was built on the principles of rapid response, quality repairs, and fair pricing.
Today, our team of experienced technicians operates a fleet of fully-equipped mobile repair units, ready to respond to emergencies 24 hours a day, 7 days a week. Whether you're stranded on I-40, US-93, or anywhere in our service area, we'll come to you and get you rolling again.

Why Drivers Choose Us
Our Story
[Owner name — to confirm] grew up around diesel engines and heavy equipment. After earning ASE certifications and spending years working as a diesel mechanic at dealerships and independent repair shops, they recognized a critical gap in the Kingman, AZ market: truckers stranded on I-40 and US-93 had few reliable options for fast, honest roadside assistance. Too many drivers waited hours for help, received inflated quotes, or dealt with undertrained technicians who couldn't handle complex diesel repair — especially modern emission system diagnostics, DPF regeneration, and aftertreatment faults on Cummins and Detroit Diesel engines.
In response, Weldon's Truck & Trailer was launched with a single mobile service truck and a commitment to doing things differently: fast response, fair pricing, and quality repair services that would hold up down the road. Word spread quickly among truckers and fleet managers, and what started as a Kingman, AZ operation has grown into a trusted team of ASE certified technicians serving CDL drivers, owner-operators, and fleet operators across a 200-mile radius spanning three states.
Today, Weldon's Truck & Trailer operates multiple fully-equipped mobile repair units, providing 24/7 emergency roadside assistance from Kingman AZ to Las Vegas, Bullhead City, Flagstaff, Henderson, Phoenix, and beyond. We've serviced over 1,200 commercial vehicles and built lasting relationships with fleet operators, owner-operators, and logistics companies across the Southwest. We've built expertise in Class 8 truck repair, from air brake overhauls and DOT inspections to computer diagnostics and FMCSA compliance checks. Our reputation for reliable repair services and great customer service continues to drive our growth.
Despite our growth, we've never lost sight of the values Joshua built this company on. Every technician on our team shares his commitment to honest work, transparent pricing, and treating every trucker like family. When you call Weldon's Truck & Trailer, you're getting more than a repair — you're getting a partner who understands the importance of keeping your semi trucks and trailers moving safely and efficiently.
Our Expert Technicians

At Weldon's Truck & Trailer, our technicians are the backbone of everything we do. Every member of our team is ASE certified with specialized training in diesel repair, semi truck repair, and commercial vehicle maintenance. Our diesel mechanics bring years of hands-on experience working on Freightliner, Peterbilt, Kenworth, Volvo, International, Mack, and all other major truck and trailer brands. Our diesel mechanics specialize in Cummins ISX and X15, Detroit Diesel DD13 and DD15, PACCAR MX-13, and CAT C15 engines — the powertrains that drive the American trucking industry.
From DPF cleaning and SCR system diagnostics to air brake certification and DOT annual inspections, our team stays current with the latest FMCSA regulations and emission standards. We invest in ongoing training and professional development to ensure our technicians stay current with the latest diagnostic technology, emission systems, and repair techniques. Our mobile service trucks are equipped with advanced computer diagnostics tools, specialized tooling, and a comprehensive parts inventory so we can diagnose and repair most issues on-site without towing your vehicle to a shop.
From complex diesel engine repair and transmission diagnostics to routine brake inspections and tire service, our ASE certified team handles every repair with precision and care. We take pride in our ability to troubleshoot difficult problems quickly, perform lasting repairs, and get drivers back on the road safely. Our technicians don't just fix trucks — they build relationships with the drivers and fleet managers who depend on us.
ASE Certified
Every technician holds current ASE certifications
Diesel Specialists
Expert diesel mechanics for all engine brands
Factory Trained
Trained on Freightliner, Peterbilt, Kenworth, Volvo
24/7 Availability
Round-the-clock emergency roadside service
Our Repair Services
Weldon's Truck & Trailer offers a complete range of truck and trailer repair services for commercial vehicles of all types. Our ASE certified technicians provide expert repairs on-site through our mobile service units or at our Kingman, AZ facility.
Whether you need emergency roadside assistance for a stranded semi truck, scheduled preventive maintenance for your fleet, or specialized diesel repair and computer diagnostics, our team has the tools, training, and experience to handle any job. We work on all makes and models of commercial vehicles, from Class 8 semi trucks to buses, RVs, and specialty equipment including flatbed trailers, reefer units, dry vans, tanker trailers, and lowboy trailers. Our computer diagnostics capabilities include factory-level scan tools for all major OEMs, allowing us to read and clear fault codes, perform forced DPF regenerations, and calibrate aftertreatment systems. Every repair is backed by our 90-day workmanship guarantee and performed to DOT standards.
Our repair services cover everything from minor roadside fixes to major engine overhauls. For semi truck drivers, we offer diesel repair, transmission diagnostics, turbocharger service, DPF cleaning, and emission system troubleshooting. Our trailer repair capabilities include structural welding, landing gear repair, door adjustments, air line replacement, and complete electrical rewiring. For fleet operators, we provide customized preventive maintenance programs that include regular inspections, oil changes, brake adjustments, and DOT compliance checks to keep your vehicles running safely and efficiently.
Our Core Values
These principles guide everything we do at Weldon's Truck & Trailer.
24/7 Availability
Breakdowns don't follow a schedule, and neither do we. Our team is ready around the clock for emergency roadside assistance.
Quality Service
We stand behind every repair with a 90-day workmanship guarantee and a commitment to quality workmanship and customer satisfaction.
Experienced Team
Our ASE certified technicians bring years of hands-on experience with all types of commercial vehicles, semi trucks, and trailers.
Fair Pricing
Transparent, competitive pricing with no hidden fees. We quote before we work so you always know what to expect.
Our Service Area
From our base in Kingman, Arizona, we serve truckers throughout the Southwest with a 200-mile service radius. Our strategic location at the crossroads of I-40 and US-93 allows us to quickly reach major cities and trucking corridors across Arizona, Nevada, and California. Whether you're hauling freight through the Mojave Desert or delivering to the Las Vegas Strip, our mobile repair units can reach you fast.
Our ASE certified technicians provide emergency roadside assistance, diesel repair, and mobile truck repair services to drivers in Kingman AZ, Las Vegas, Henderson, Bullhead City, Flagstaff, Lake Havasu City, Prescott, Needles, and dozens of other locations. We know the local highways, the challenging terrain, and the specific issues that affect trucks operating in the extreme heat and mountainous grades of the Southwest. Whether you're hauling freight in a Class 8 Freightliner Cascadia, running a Peterbilt 579 on a dedicated lane, or managing a fleet of Kenworth T680s, our team understands your equipment inside and out.
Our Commitment to Quality
At Weldon's Truck & Trailer, quality isn't just a buzzword — it's the foundation of every repair we perform. We back every repair with a 90-day workmanship guarantee because we're confident in the skill of our ASE certified technicians and the quality of the parts we use. When we fix your semi truck or trailer, we fix it right the first time.
Our commitment to quality extends beyond the repair itself. We believe in transparent communication, honest pricing, and treating every customer with respect. We provide detailed repair estimates before starting work, explain what we're doing and why, and never recommend unnecessary services. Our great customer service is why fleet managers and truck drivers return to us again and again.
We also prioritize road safety in everything we do. Every repair we perform meets or exceeds DOT standards, and our preventive maintenance programs help keep your vehicles compliant and safe. We help CDL drivers and fleet managers maintain clean CSA scores by ensuring every repair meets or exceeds DOT and FMCSA standards. When you leave our care, your truck is ready for any weigh station or roadside inspection. When you trust your semi truck or trailer to Weldon's, you can drive away knowing the job was done right.
Contact Information
Address
3720 N Prescott St, Kingman, AZ
Phone (24/7 Emergency)
(334) 759-7020Hours
24/7 Emergency Service