Heavy Duty Fleet Truck Repair 

Twin Falls, ID

24/7 Availability

90-Day Workmanship Warranty

Same-Day Estimates

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East Idaho’s Most Trusted Heavy-Duty Truck Repair Experts

DT Services is East Idaho’s highest-rated independent shop for fleet truck repair in Twin Falls, ID, delivering dealership-quality service with a local, family-owned touch. With over 45 years of combined experience and certifications in diesel engines, brakes, A/C, DOT inspections, Cummins, CAT, and more, we bring unmatched expertise to every job. Established in 2020, we’ve built a reputation for reliability, precision, and fast turnaround—because your time on the road matters.

From 24/7 availability and mobile repair options to same-day estimates and next-day service, we're committed to keeping your fleet moving without delay. Every repair is backed by a 90-day workmanship warranty and supported by manufacturer warranties. Whether you need preventative maintenance, major engine work, or emergency roadside assistance, trust the team that combines dealership-level quality with the convenience and care only a local shop can provide. Call us today for fleet truck repair in Twin Falls, ID!

Why Choose DT Services

24/7 Availability

Mobile Services Available

90-Day Workmanship Warranty

Over 45 Years of Combined Experience

Highest Rated Independent Shop in East Idaho

Certified in Diesel Engines, Brakes, A/C, DOT Inspections, Cummins, CAT, and More

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AC Repair

Air conditioning systems are diagnosed and repaired to maintain cabin comfort in all weather conditions. Our technicians ensure efficient cooling performance and system reliability.

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Axle and Differential Repair

We service and rebuild axles and differentials to restore proper torque distribution and vehicle stability. This includes gear replacement, bearing service, and fluid changes.

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Axle Spindle Repair

Our axle spindle repair restores worn or damaged spindles to ensure safe wheel rotation and alignment. We use precision machining and high-quality parts for long-lasting results.

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Commercial Truck Repair

We provide fleet truck repair in Twin Falls, ID for all types of commercial trucks, from engine diagnostics to brake systems. Our goal is to minimize downtime and maximize fleet performance.

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Coolant System Repair

We inspect and repair coolant systems to prevent overheating and engine damage. Our services include radiator replacement, hose repair, and coolant flushes.

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Diagnostics and Electrical Repair

Using advanced diagnostic tools, we identify and fix electrical issues affecting performance, lighting, and control systems. We handle everything from wiring repairs to sensor replacements.

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Diesel Engine Repair and Rebuild

We specialize in diesel engine diagnostics, repairs, and full rebuilds to restore power and efficiency. Our team handles everything from injector service to complete overhauls.

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Diesel Exhaust Repair

Ensure compliance with emissions standards and improve fuel efficiency with diesel exhaust repairs. We provide muffler replacement, exhaust pipe repair, and emission control system maintenance.

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DOT Inspections

Let us perform thorough DOT inspections to ensure your truck meets all federal safety and operational standards. Our certified technicians check brakes, lights, tires, and more.

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Driveline Repair

Our driveline repair services address issues with shafts, joints, and bearings to prevent vibration and loss of power. We ensure proper alignment and balance for optimal performance.

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Drivetrain Repair

We repair and replace drivetrain components to maintain smooth power transfer from engine to wheels. This includes servicing transmissions, differentials, and transfer cases.

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Drum Brake Repair

We inspect and repair drum brake systems to ensure reliable stopping power. Services include shoe replacement, drum resurfacing, and hydraulic system checks.

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EGR and DPF Repairs

Let us clean and repair Exhaust Gas Recirculation (EGR) and Diesel Particulate Filter (DPF) systems to reduce emissions and improve engine efficiency.

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General Diesel Repair

We offer full-service diesel repair for engines, fuel systems, and emissions components. Our experienced technicians keep your truck running reliably and efficiently.

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Heating Repair

Ensure your truck cabin is comfortable in the cold. Services include heater core replacement, blower motor repair, and thermostat checks.

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Motorcoach Repair

Our motorcoach repair services focus on maintaining and restoring large passenger vehicles, including drivetrain, suspension, and onboard systems.

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Oil & Fluids

Oil changes and fluid services are imperative to maintaining engine health and system performance. This includes transmission fluid, brake fluid, coolant, and more. If you need these services, contact our fleet truck repair in Twin Falls, ID!

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Preventative Maintenance

Our preventative maintenance services help avoid breakdowns and extend vehicle life. Our fleet truck repair in Twin Falls, ID offers services such as regular inspections, fluid checks, and component replacements.

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RV Repair

At DT Services, we offer specialized repair services for recreational vehicles, handling everything from engine diagnostics to electrical systems.

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Semi-Truck Repair

We offer specialized repair services for semi trucks, including engine, transmission, and brake system repairs. Our team ensures your rig stays safe and operational.

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Transmission and Clutch Repair

We repair and rebuild transmissions and clutches to restore smooth shifting and power delivery. Services include clutch replacement, fluid service, and gear diagnostics.

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Here's what our satisfied customers are saying...

At DT Services, we take pride in providing exceptional heavy-duty truck service and repair to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of DT Services and let others know what you think.

Frequently Asked Questions

  • What Are the Most Common Issues That Require Heavy-Duty Truck Repairs?

    Semi trucks encounter a range of recurring problems due to the heavy loads and long distances they cover. When drivers notice performance drops, unusual noises, or warning lights, prompt evaluation is essential to prevent more extensive damage and higher repair bills. Our technicians often respond to calls for heavy duty truck repair when fleets experience power loss or drivability concerns, and we approach each diagnosis methodically to find the underlying cause rather than just treating symptoms.

  • How Often Should a Heavy-Duty Truck Receive Routine Maintenance?

    Routine maintenance intervals depend on duty cycles, mileage, and operating conditions, but industry best practices recommend scheduled inspections at regular mileage or hourly intervals to catch wear before it becomes an emergency. For fleets that prioritize uptime, establishing a maintenance program with a local provider experienced in 6 and surrounding areas helps ensure consistent service scheduling, documented inspections, and quick turnaround for required work.


    DT Services also advises adjusting maintenance frequency when trucks operate in harsh climates, dusty environments, or under heavy loads, since these factors accelerate component wear. If you’re experiencing recurrent issues or uncertainty about service intervals, reach out to discuss a program that aligns with your fleet’s usage patterns and minimizes the risk of breakdowns.

  • How Do I Know if My Truck’s Brakes Need to Be Serviced or Replaced?

    Brake systems show specific warning signs when service is required—reduced stopping power, abnormal noises, pulling to one side during braking, visible pad thinning, or soft brake pedals are all indicators that a professional inspection is overdue. Our crews handle brake diagnostics and component replacement efficiently, and we frequently service fleets that request scheduled brake checks as part of their heavy duty truck repair plans to ensure safe, compliant operation.


    DT Services supports preventive brake programs and emergency response, helping customers maintain consistent performance across their fleet truck repair in Twin Falls, ID schedules.


    Whether you’re an independent driver or a large fleet manager, DT Services delivers honest assessments, clear cost estimates, and quality workmanship that focus on safety and reliability. Contact us today to learn how our fleet truck repair in Twin Falls, ID can meet your needs and keep your vehicles productive on every route. Call DT Services today to learn more and get started!

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