Call Us Message Us
Diesel Mechanic
Diesel Engine Repair
Mobile Diesel Mechanic

Mobile Truck Repair

OnSite Fleet Services of Texas is a locally trusted and skilled source for prompt and reliable truck repairs that come to you. Offering a flexible, on-site mechanic service that comes to the aid of truck drivers who’ve been stranded or are experiencing issues while out on delivery, we’re a one-stop shop for diesel vehicle services.

If you’re experiencing issues and are unable to make it into our shop, we bring our tools and skills to you. Arriving quickly at your location with all the parts and equipment required to get you back on the road, we’re a valuable resource for any business that relies on trucks to perform their shipments without issue.

Call us today to discuss how we can be of service to your drivers, engines, and operations. You can reach us at (817) 462-1532.

We Specialize in Many Types of Truck and Trailer Repairs

We are capable of performing on-site, mobile truck repairs, including tune-ups, batteries, water pumps, electrical systems, starters, charging systems, air and hydraulic brakes, diesel and gas engines, and more. Our mechanics are qualified to conduct annual vehicle inspection reports (DOT Inspections). We are your one-stop for everything from windshield repair to electrical repairs. We also perform on-site trailer repair, forklift repair, and RV repairs—trucks, trailers, forklifts, RVs, hydraulics, we fix them all! We are experts in mobile maintenance and repair of all gas, diesel, and propane engines.

Experienced and Trained Truck Mechanics at Your Service

With many years of experience providing mobile truck repair, we have the expertise you need to get your truck back on the road as soon as possible. We know that anytime your rig breaks down, multiple parties are losing money. Because we understand your urgency, we will dispatch the closest mobile truck repair mechanic to your location to fix your truck without delay— and at highly competitive rates.

Our knowledge of trucks runs deep. When dealing with our team, you can be sure that the information you receive from our trusted professionals can be treated as gospel. We spend time researching trucks so that our knowledge is constantly improving. We offer our staff learning opportunities they can use to improve their service when working on your vehicle. So when your truck needs repair, you can rest assured it is in good hands when you call OnSite Fleet Services of Texas.


Fast and Affordable Emergency Truck-Repair

When you require emergency truck repair, our technicians are dedicated to providing the service and answers you need when you need them. We also equip our mechanics with a full suite of mobile tools and replacement parts and go above and beyond to reach your location as quickly as possible. To do this, our teams are on the road and ready to respond 24 hours a day, seven days a week (including holidays and weekends).

From flat tires to engine repairs and lift gate tune-ups, we're certified to handle repairs and replacements on heavy-duty trucks of all types. Connect with our licensed mechanics to receive immediate service at pricing designed to help get you back on the road faster. Call us now to get started with a risk-free estimate.

Mobile Commercial-Truck Repair You Can Afford

Normal wear and tear can cause unexpected breakdowns, making fixing your vehicle a challenge. When you need reliable service and problem-solving innovation from some of the industry's best, you won't want to miss out on our mobile commercial truck repairs.

We offer a full suite of services that are effective for fixing trucks of practically every make and model and are proud to pass the savings on to you at every opportunity. Discuss professional repairs with a certified group of mechanics who hold the transportation industry in high regard. Get in touch now for an estimate at no financial risk or obligation to you.

Mobile Truck Servicing

You're responsible for ensuring freight arrives on time and intact, so when things go wrong with your vehicle, it can elevate stress and put a lot of pressure on you. Rather than waiting for your semi-truck to be hauled into a shop for an assessment on repairs, it is possible to save a significant amount of time and expense by opting for mobile truck servicing.

As soon as you give us the go-ahead and your location, we'll dispatch a qualified technician who will get to work assessing and suggesting solutions for the problem right away.

The speed, accuracy, and attention to detail that goes into every service we provide make it possible for you to fulfill your commitments on time. Don't hesitate to get in touch with our fully licensed and insured mechanics to discuss your options.

5 Benefits of Working with Our Mobile Heavy-Duty Mechanics

Are your broken down right now? Our experts have put together the following list of the top 5 benefits of working with our mobile heavy-duty mechanics:

Allows You to Fulfill Client Obligations

Roadside truck repair makes getting back on the road easier and helps you fulfill your shipment obligations on schedule. Trucks on the road are often on a tight schedule, and unexpected malfunctions can completely throw a wrench in delicate logistical arrangements. That’s why having a quality mechanic respond to your unexpected situation can ensure your shipping obligations are met and your relationship with clients isn’t threatened.

Provides Lasting Repairs You Can Trust

You can count on the quality of the replacement components and services we provide. As trained and certified diesel engine and truck repair specialists, we’re equipped to offer the same quality of repair you would receive at any garage—only we bring those services to you. Rather than having to double down on your repairs, we offer a reliable method of getting the job done right the first time.

Saves You Time on the Road

We know that every second can seem like a lifetime when you’re stranded on the highway with valuable cargo in your truck. That’s why we waste no time in providing you with the repairs you need to get underway. We arrive quickly and don't waste any time before getting started. Our extensive experience repairing trucks and trailers of all kinds comes in handy in helping us diagnose issues quickly, determining the most efficient and effective repair that will get you back on the road safely.

Reduces Repair Costs and Liabilities

At OnSite Fleet Services of Texas, we don’t allow the urgency of your situation to comprise the value of the services we offer. As professional mechanics, we take great pride in our work and back it up with competitive prices and safeguards. We offer value-driven rates, and our work is guaranteed. That means you can always rely on us to put our money where our mouth is and provide work that’s meant to last—always at a reasonable price based on comparable non-mobile services.

Protects Your and Other Drivers’ Safety

Your safety and success are our number one priority. That’s why we strive to offer a dedicated mobile truck repair service that can come to your aid whenever you’re experiencing issues that make your vehicle unsafe to drive. We’ll never send you back onto the road with a truck that isn’t safe to be driven. We understand that your well-being and the safety of other drivers around you are your top concerns, and we’re on the same page.

We're always willing to answer any questions you have. Reach out for more information on any of our big-rig repair services.

A Wide Range of Mobile Truck Repair Services


The trailer is an integral part of your job as a truck driver. Your trailer is also essential in ensuring your safety when out on the open road. If something goes wrong with your trailer, OnSite Fleet Services of Texas is the name to call. Whether you are experiencing braking issues, electrical issues like wiring and lights, tire alignment or mounting points, problems with bearings, or other possible problems that can occur within your trailer – there is no one better to call than our team. We also offer tire replacement and repair services.

Our specialty in this area goes far beyond just trailer repair too. We are full-blown trucking repair experts. Call us for any number of problems, including the following.


We also offer tire replacement and repair services. We’ll come to you with everything required to get your truck mounted on safe and durable tires, allowing you to head out again with rubber you can trust. From tire blowouts to small punctures, you can trust us to help you bounce back from any unexpected issues with your tires. What’s more, we offer our tire replacement and repair services at affordable and reasonable rates, so you never have to worry about being overcharged when you call us at the last minute.


We can install, service, maintain, refinish, and repair all models of liftgates. Our mechanics are qualified to diagnose and repair all structural, hydraulic, and electrical issues. We guarantee customer satisfaction. Call us today and speak to an expert.

Services of Texas offers a complete service performed by a trained technician. Be sure to have a conversation with us about your lift gates and their usage before they break down so that we can help you plan an inspection schedule that best suits your needs. Contact OnSite Fleet Services of Texas today!

When it’s time to unload or load delivery, you can’t afford to have any issues with your liftgate. You depend on your liftgate to bring heavy loads to and from your container unit. It is a critical part of your truck that is often neglected or taken for granted. The motors on lift gates are very powerful, but they still need semi-regular checkups and maintenance to run smoothly for a long time.

If you suspect that your liftgate needs maintenance or is not functioning correctly, please get in touch with our team. We will fix the problem wherever you are.


Our maintenance schedule software tracks when each vehicle is due for service based on your particular needs and the truck’s usage patterns. When a vehicle is due for service, we call to schedule an on-site appointment, allowing you to keep vehicles on the road during your peak business hours. We will send you, at no charge, a scheduling sheet monthly so that you can see when a vehicle is coming due for service.

We maintain a file on each vehicle containing preventative maintenance and vehicle repair records, easily accessible at your request. This eliminates the need for managers to worry about their fleet’s service maintenance and gives them immediate vehicle information on servicing and vehicle status. This OnSite Fleet Services of Texas system keeps companies in compliance with Paragraph 396 of the Federal Motor Carrier Guide concerning an approved maintenance service program.

OnSite Fleet Services of Texas specializes in determining a specific maintenance plan for each diesel vehicle. We thrive on constantly researching recurrent factory problems and issues and technical service bulletins, therefore, keeping abreast of all service requirements to keep your individual vehicle, or fleet vehicle, in its optimum running condition.


Your truck is important to you. If it’s a commercial vehicle, it’s a part of your business. If your truck has engine problems, having downtime is just unacceptable. You can be assured that we make every attempt to provide the fastest turnaround without sacrificing quality work and quality time for every detail. OnSite Fleet Services of Texas Customer satisfaction is our number one priority, every time, all the time!

Aside from your engine being wholly blown, we can fix most problems quickly. Getting your truck back on the road safely is our ultimate goal. Regardless of how fast we fix your truck's engine, we won’t let you leave until a complete safety inspection has been completed.

It doesn’t need to be stated that having our professional mobile mechanics come to you and fix your problem is better than going to the shop and waiting for it to be fixed. Call us at (817) 462-1532, tell us what you think the issue is, and we will come prepared as best we can. There are rarely issues we cannot fix with us on the spot, so please get in touch with our team to have one of our fully equipped repair trucks out to your location.


OnSite Fleet Services of Texas is focused on the work that extends the life of your vehicle. We greatly reduce breakdowns and corrective maintenance costs. We will contact you to schedule services which include oil changes, filter replacement, clutch adjustments, checking gear oil levels, lubrication of chassis and moving components, an inspection of the charging system, measurement of brake pads and shoes, adjustment of air brakes, transmission services, and replacement and repair of all lighting and electrical systems. During our service, we perform over 26 functions to keep your vehicles in compliance with federal regulations.

We provide nothing but the best for our clients. That’s why when you call us, you can trust that your vehicle will be safe to operate once again. Call us for your mobile truck troubles, and you are sure to become a part of our long list of more than satisfied clients.

Upfront Pricing on Mobile Diesel Repair

Just because your truck is broken down on the side of the road doesn’t mean you should necessarily hire the first mobile mechanic you come across. At OnSite Fleet Services of Texas, our customers know that we are always willing to provide a trustworthy quote at the start of a job to be sure they are getting the work they need at a fair price. If you are in need of a mobile truck mechanic, we encourage you to get in touch with us and explain the problem you are having for an honest outlook of what we can do for you.

Get Back on The Road Fast

Immediate Dispatch on Diesel Truck Repair

When you find yourself in need of diesel repair, our lightning-fast response times will help you get back in business as soon as possible. We make sure that we keep our service vehicles fully stocked and ready to respond to every call that comes in, which means you never have to worry about being out of commission for long. All you need to do is reach out to us with your location, and you can expect a certified mechanic at your location before long.

24-Hour Mobile Truck Repair

On top of offering convenient hours of operation, we also keep our lines open after hours to ensure that none of our customers are left stranded. No matter what time you find yourself in need of our mobile diesel mechanics, you can count on us to hop in our trucks and head to your location right away.

Efficient Repairs of Your Diesel Truck

Not only do we arrive at your location with unprecedented quickness, but we also work efficiently once we are on-site. Our trained and certified mechanics are well-versed in all areas of diesel repair, so you can rest assured that they will be able to swiftly analyze your problem and then get to work on the solution.

Premiums Tools and Replacement Parts for Diesel Repair

Don’t let the fact that we offer mobile service make you think that it impacts the quality of our work whatsoever. In fact, we put a lot of thought and consideration into the equipment we use for our mobile service and pride ourselves in providing authoritative repairs anywhere in the area. We guarantee that all of our repairs will be high performance and long-lasting, which means using our services are always worth your while.

Reliable Service for Any Diesel Truck

We have been fixing trucks for quite some time now, which has equipped us to handle anything that comes our way. Our experienced, knowledgeable diesel mechanics have everything they need to get any truck back to optimal performance.

Hire a Mobile Diesel Mechanic You Can Trust

From transparent estimates to an affordable solution for virtually every problem, we’re confident in our ability to meet your needs. Our licensed mobile mechanics are the ideal choice when you find yourself broken down on the side of the road, in a parking lot, or at a truck stop. Don’t wait around all day trying to track down parts or fix it yourself. Our highly skilled technicians arrive quickly and then do short work resolving even the most complex truck and trailer issues.

Our promise to you is safe and long-lasting repair work that you can always depend on. Get in touch to alert us to your location, and we’ll dispatch our mobile services right away.

Do You Need a 24-Hour Diesel Mechanic?

Most professional truckers know even the most well-maintained rigs can experience unexpected breakdowns. Our 24-hour diesel mechanic is the answer you need when this happens to you. We’ll come to you with everything we will need to get you back up and running again in no time at all—no matter where you are currently located within our region.

We understand that breakdowns can happen anytime, so we work hard to serve you better outside of regular business hours. Connect with our team to request a budget-friendly estimate.

We understand that breakdowns can happen anytime, so we work hard to serve you better outside of regular business hours. Connect with our team to request a budget-friendly estimate.

We all depend on professional truck drivers to move goods across our country, keeping our homes and store shelves well-stocked with the food and items we love. For this reason, we strive to be the mobile, heavy-duty mechanic you can turn to in your time of need.

Whether you are having issues with tires, engine, electrical, hydraulics, or something else entirely, we’re the established mechanics that are proud to offer affordable pricing and unbeatable customer service.

Let us come to you with all the tools, replacement parts, and equipment we need to fix issues with your truck for good. Contact us to request a risk-free estimate.

Mobile Truck Tire Repair: Trusted Tire Replacements and Repair Solutions

Getting a flat tire is inconvenient for everyone, but especially for truckers who have a schedule to maintain. Strict pickup and drop-off times don’t account for flats, which can leave you in a bind if you’re not equipped to make the repairs yourself. Our mobile truck-tire repair specialists are just what you need.

We work with great speed and precision to get you safely back in the driver’s seat and en route to your destination. The depth of our experience, certifications, and training allow us to pinpoint and diagnose issues with ease. From there, we’ll give you an estimate, and once we get the go-ahead from you, we’ll get to work plugging punctures, installing repair units, and making sure your tire’s casing integrity is strong and sound.

Reach us to discuss tire repairs with a licensed and fully insured mechanic dedicated to your success.

A Full Suite of Road Services for Every Truck Trailer Repair

We offer a full suite of innovative and affordable road services for every type of truck and trailer repair.

Some of the most common issues we’ve solved recently have included:

  • Trucks that won’t start
  • Engine problems
  • Fuel line problems
  • Suspension problems
  • Issues with breaking
  • Alternator issues
  • Tire damage
  • Roof damage
  • Problems with ABS breaks
  • And much more!

Far-Reaching Mobile Truck Repair

We are proud to provide our mobile diesel repair in a wide service area. If you are stuck in Arlington, Grand Prairie, Irving, or any of the surrounding areas, you can count on us for a quick response. We have a thorough knowledge of the local area as well as reliable GPS technology, so you can always count on us to get to your location swiftly.


  • Seals & Bearings
  • Lights
  • Clutch Linkages/ Clutch problems
  • On-Site Roadside Service
  • Oil & Filter Changes
  • Fleet Maintenance
  • DOT Inspections
  • Medium & Heavy Duty Trucks
  • Off-Road Equipment
  • Minor Engine Repairs
  • Major Engine Repairs
  • Full Engine Rebuilding
  • Electrical Service
  • Transmission Repair
  • Hydraulics
  • A/C Service
  • Charging & Starting Services
  • State Commercial Inspections (DOT)
  • Complete Fuel Injection Services
  • Clutches
  • PTO Services
  • Brakes
  • Tune Ups
  • Fan Motors
  • Power Steering Pump
  • Maxi Chambers
  • Air Governors
  • Glad-Hands
  • Misc Leaks
  • Air & Fuel Filter
  • Landing Gear Problems
  • Out of Fuel Service
  • On-site Welding
  • Alternators
  • Starters
  • Shocks & Struts
  • Suspension Work
  • Belts
  • Trailer Lights
  • Hoses
  • Batteries & Cables
  • Brakes
  • Brake Chambers
  • Transmissions Stuck in High/Low gear
  • Diesel Truck Parts
  • Water pumps
  • Fuel Pumps
  • Jump Starts
  • Airlines
Contact us now to get a free estimate
Captcha code Refresh Captcha