Diesel mechanic performing general diesel truck repair services in Dallas, Texas

General Diesel Shop Repairs Services in Texas

When it comes to professional repair services for diesel trucks, OTR Fleet Service is the name you can trust. We specialize in ensuring optimal performance and efficiency for fleet, heavy-duty, medium-duty, and light-duty trucks. Our team of experts is committed to delivering top-quality services to meet all your truck maintenance and repair needs.

Schedule Service

General Diesel Truck Services Offered by OTR Fleet Service

  • Engine Diagnostics and Repair: Using advanced diagnostic tools, we accurately identify and address issues in the fuel injection, ignition, and emission control systems of your diesel trucks. Our skilled technicians possess the expertise to efficiently resolve any engine-related problems.
  • Fuel System Maintenance: We understand the importance of a properly functioning fuel system for your trucks. That's why we offer comprehensive fuel system maintenance services, including fuel injector cleaning and replacement, fuel filter replacement, and fuel pump repair. 
  • Coolant System Maintenance: The coolant system plays a crucial role in maintaining the optimal temperature of your trucks' engines. At OTR Fleet Service, we provide radiator flushes, thermostat replacements, and repair or replacement of water pumps, hoses, and fan clutches.
  • Exhaust System Repair: Our skilled technicians are well-versed in diagnosing and repairing exhaust system issues. From the diesel particulate filter (DPF) to the exhaust gas recirculation (EGR) valve, we address any problems affecting your trucks' exhaust systems, ensuring efficient and clean operation.
  • Transmission and Drivetrain Service: We offer comprehensive transmission and drivetrain services to keep your trucks on the road and operating smoothly. This includes transmission fluid changes, clutch replacements, and repair or replacement of differentials, driveshafts, and axles.
  • HVAC Service: Comfort is important when operating your trucks. That's why we provide a range of HVAC services, including system installations, repairs, and maintenance. Trust us to keep your trucks' HVAC systems functioning properly, no matter the weather conditions.
  • Tire Repair and Service: Proper tire maintenance is crucial for safe and efficient truck operation. Our tire services include installations, repairs, rotations, and replacements. We ensure your tires are in top condition, delivering optimal performance on the road.

Importance of Regular Maintenance

Regular maintenance is essential to extend the lifespan of your trucks' engines and prevent premature wear and tear. By keeping your engines well-maintained, you can improve fuel efficiency, reduce operating costs, and contribute to a cleaner environment through reduced emissions. Additionally, regular maintenance allows us to identify and resolve potential issues before they turn into costly repairs or unexpected breakdowns, minimizing downtime for your fleet.

Contact Us

For quality service and customer satisfaction, trust OTR Fleet Service. Our experienced team is ready to assist you in keeping your trucks running efficiently. Schedule your maintenance or repair services today by contacting us.

Schedule Service
our services

Our Diesel Mechanic services

Our team of experienced diesel mechanics have the experience and expertise to handle a wide range of truck repair and fleet maintenance needs. From comprehensive DOT inspections & trailer repairs, to equipment repair & emergency roadside assistance. With truck repair shop locations in Houston, Dallas, & San Antonio, as well as mobile services in Austin, OTR Fleet Service is Texas' #1 choice for truck repair and fleet maintenance services. Get in touch with us today to schedule service.

Mechanic performing alignment service in truck repair shop in Texas

Are you in need of reliable and efficient truck repairs? Look no further! With our technical expertise and dedication to customer satisfaction, we are the go-to choice for truck repairs.

View Service
Diesel mechanic performing trailer repairs in Texas

Looking for professional trailer repairs? OTR Fleet Service is here to help. Our technical expertise and customer satisfaction commitment make us the go-to choice for trailer repairs.

View Service
Mobile diesel mechanic performing onsite fleet maintenance services in Texas

At OTR Fleet Service, we understand the importance of minimizing downtime and maximizing productivity for heavy equipment and heavy, medium, and light-duty trucks.

View Service
Mechanic performing DOT & FHWA inspections in Houston, Texas

Looking to ensure the safety and compliance of your commercial trucks? We provide comprehensive DOT and FHWA inspections to guarantee the roadworthiness of your fleet.

View Service
Diesel mechanic performing general diesel truck repair services in Dallas, Texas

OTR Fleet Service provides professional repair services, specializing in ensuring optimal performance and efficiency for fleet, heavy-duty, medium-duty, and light-duty trucks.

View Service
Diesel mechanic performing fleet maintenance services in San Antonio, Texas

OTR Fleet Service is your trusted partner for comprehensive fleet management services. We offer a wide range of solutions to ensure your fleet runs smoothly and efficiently.

View Service
Diesel mechanic performing preventive maintenance services in Texas

OTR Fleet Service specializes in preventive maintenance services tailored to your specific needs. We offer maintenance to keep your equipment and trucks performing at their peak.

View Service
Mobile diesel mechanic performing emergency roadside assistance services in Texas

At OTR Fleet Service, we understand the importance of getting your truck back on the road quickly and safely. That's why we offer reliable emergency roadside services,

View Service
Diesel mechanic performing specialty equipment repairs in Texas

At OTR Fleet Service, we specialize in repairing and maintaining heavy equipment. We are committed to keeping your heavy equipment in optimal working condition.

View Service
Diesel mechanic performing welding & fabrication services in Texas

When it comes to welding and fabrication services for your diesel fleet, heavy-duty, medium-duty, and light-duty trucks, OTR Fleet Service is your trusted partner.

View Service
Diesel mechanic performing lift gate repairs in Texas

With our expertise in fleet, heavy-duty, medium-duty, and light-duty trucks, we have the knowledge and experience to handle all your lift gate and rail gate needs.

View Service

customer insights

"Highly recommend OTR Dallas for inspection and repair. Michele was awesome! She’s professional and helped us a lot. Great communication. Reasonable price for repairs. Thanks Michele for all the help."  //  Mike Alhoutari

Alternative Distributors

5 stars

"OTR has been a great help to us in both the Dallas and Houston areas. The staff is always very helpful and informative. They provide great customer service, their mechanics, both mobile and in house, are very through and informative."

rodney geibe

5 Stars

"I have taken my trailer into this shop for years. Outstanding service. Everyone at the shop goes out of there way to get you back on the road as quick as possible. If you need work done on your truck or trailer, this is the place to go."

Eston Hammer

5 Stars

"Amazing place!  
Super friendly and fast staff. Rudy Ray was an amazing mechanic! Not only did he get the job finished the same day, he kept me in the loop the entire time. Shout out to him and the great staff at  OTR!"

Angel Cardiel

5 Stars

"Andrea and the rest of the crew were all incredibly punctual and effective. The staff was very kind and listened to my concerns and even gave me a complimentary multi point inspection. The repair was successful as well. Will be using them moving forward."

Caleb Thornburg

5 Stars

"Mike P came out in the rain and thunderstorm to help me get my piggy back back rolling! I really appreciate all his patience becasue he didnt have the key i did in the truck! He waited! I appreciate him and his patience! Thanks"

Caleb Thornburg

5 Stars

"I just want to thank Mario for his extreme professionalism. He made sure that the shock was well replaced and explained the process to my dad well. We usually do not write reviews but my dad could not stop talking about how well the interaction was and how well the job got done. Thank you Mario for this great experience."

Kabe Brown

5 Stars

"They were quick to respond to my needs when other companies were unable. I'd like to give a quick shout out to my man Edward from otr fleet services... that main drive belt 😳 was a pain but you stuck at it. Top notch work."

Deric Jean

5 Stars

"Working for a nationwide trucking company, having a company that we can rely on to keep our equipment running at it full potential is the number 1 reason we use OTR Fleet. The staff at Houston is fast, caring, and available."

Chris Burlison

5 Stars

"I operate a large fleet of trailers and OTR does an awesome job of maintaining my fleet. Block is the mechanic that keeps everything running and operating. He is always ready willing to do what it takes to ensure we do not miss a beat in our fast paced business. Thank you OTR and especially Block! Appreciate all you do for us!"

Semaj Johnson

5 Stars

"Just got serviced by Jacob Scott, very efficient in his work, I was told the eta was 3-4hrs, he was here in an hr and he’s very friendly 🤙🏾"

Ramon Espino

5 Stars

"I want to give Moses a big shout out!! He keeps my company’s fleet up to date and running!! Always going out of his way to make sure we are always taken care of! Thank you Moses for continuing to provide the up most excellent customer service and getting us out of some 911 maintenance!"

Azul Zamarripa

5 Stars

"Awesome team ! Professional helpful and knowledgeable, guys were willing me to help me out with no hesitation. If you’re in San Antonio or the area and need assistance don’t even bother looking else where ! Special thanks to Larry Hector and Delton. Great guys and great service."