Keep Your Fleet Running at Peak Performance – Fast, Reliable, and Warrantied Service in Knoxville
From mobile fleet repair to roadside truck service, and professional diesel tuning — we help you minimize downtime, maximize performance, and save on costly repairs.
- Emergency Roadside Support
- Certified Heavy-Duty Technicians
- Fast Turnaround & Free Pickup/Delivery
About Us
Why Fleets Trust Us
At Fleet Services of Knoxville, we specialize in keeping diesel fleets on the road — longer, cleaner, and more efficiently. Based in Knoxville, we serve trucking companies, contractors, and logistics fleets who can’t afford downtime.
Our team combines decades of diesel repair experience with the latest diagnostic technology and a commitment to honest, fast, and dependable service. Whether you manage one truck or a hundred, we keep your operation running smoothly with minimal interruption.
- Emergency Support – We’re always ready when you need us most.
- Certified Technicians – Skilled in diesel, heavy-duty, and electrical systems.
- Fleet-Focused Solutions – Tailored services for every size operation.
- Fast Turnaround – From road service to on-site repair, we minimize downtime.
- Guaranteed Results – If it’s not fixed right, you don’t pay.
We Come to You
Mobile Fleet Repair
Don’t waste time on towing or shop delays. Our mobile fleet repair units come directly to your site — equipped with tools, parts, and dealer-level diagnostics.
We Handle On-Site:
- Engine diagnostics & electrical issues
- Brake repairs & trailer service
- Tire changes & fuel delivery
- Emergency availability
Serving Knoxville and nearby counties, we keep your trucks rolling — wherever they are.
Restore Like-New Performance
DPF Cleaning
Get your diesel particulate filter fully restored within 24–48 hours.
Our advanced cleaning process removes up to 99.9% of ash buildup, reducing engine back pressure and improving fuel economy.
Benefits Include:
- Longer DPF lifespan
- Fewer regens & better fuel efficiency
- Backed by a nationwide warranty
Powered by Pittsburgh Power
Diesel Tuning
Unlock your fleet’s full potential with Pittsburgh Power diesel tuning. Get more horsepower, improved torque, and better fuel economy — all while staying emissions-compliant and protecting your engine’s health.
Tuning Benefits:
- Boost horsepower & torque
- Improve fuel efficiency
- Reduce emissions
- Extend engine lifespan
Optimized for heavy-duty fleets, our tuning solutions deliver consistent performance and long-term reliability.
Emergency Response
Roadside Truck Service
Breakdowns don’t wait for business hours — and neither do we. Our roadside truck service gets you back on the road quickly and safely, minimizing costly downtime.
We Provide:
- Fast dispatch & on-site repairs
- Certified diesel technicians
- Fully equipped service trucks
- Regional coverage across Knoxville & beyond
Whether it’s a flat tire, lockout, or electrical issue — we’ve got you covered.
Why Choose Us
Why Choose Fleet Services of Knoxville
Emergency Availability
We’re always ready when you need us most.
Certified Technicians
Skilled in diesel, heavy-duty, and electrical systems.
Fleet-Focused Solutions
Tailored services for every size operation.
Fast Turnaround
From road service to on-site repair, we minimize downtime.
Guaranteed Results
If it’s not fixed right, you don’t pay.
Fleet Services of Knoxville
Truck Maintenance Service & Repair
If a truck fleet is important to your business, then Fleet Services of Knoxville has your back. Our main goal is to keep your truck fleet running at peak performance and efficiency, eliminating costly down times. We are a locally owned and operated truck fleet maintenance and repair business and our focus is the Knox County Area.
Our service vehicles are equipped with top of the line equipment, tools, parts, and supplies to ensure your truck is diagnosed and repaired properly and in a timely manner. If any of your truck fleet requires more extensive maintenance or repairs, we will conveniently pick up your vehicle and bring it to our repair facility and return it to you when our service is completed.
Preventative Maintenance
We maintain your fleet by tracking the preventative maintenance schedule and letting you know when its time for service.
Major & Minor Repairs
We handle all major and minor repairs. No job is too big or too small. We partner with local glass, body, and tire shops to take care of all of your fleet needs.
Overflow Services
If you already have a fleet manager or mechanics on staff, we can provide overflow service to get your mechanics caught up.
Emergency Breakdown Service
Our patented Mobile Service Trucks allow us to get your vehicle repaired and back in operation with a minimum delay, eliminating towing charges and costly downtime expense.
Service Area
Truck Repair and Maintenance in Knoxville
- Proudly serving Knoxville and surrounding areas, including Maryville, Oak Ridge, Sevierville, and beyond. Wherever your fleet runs, our team is ready to meet you there.
Ready to Get Back on the Road?
Don’t let downtime drain your bottom line.
Contact our Knoxville diesel specialists today for fast, reliable, and warrantied service.