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.

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.
truck, Trailer & Fleet Service Specialists

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.
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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.
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At OTR Fleet Service, we understand the importance of minimizing downtime and maximizing productivity for heavy equipment and heavy, medium, and light-duty trucks.
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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.
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OTR Fleet Service provides professional repair services, specializing in ensuring optimal performance and efficiency for fleet, heavy-duty, medium-duty, and light-duty trucks.
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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.
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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.
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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,
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At OTR Fleet Service, we specialize in repairing and maintaining heavy equipment. We are committed to keeping your heavy equipment in optimal working condition.
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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.
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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 Servicecustomer 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
"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
"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
"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!"