DIESEL ENGINE SERVICES

Diesel Engine Services

24/7 Early Bird and Night Drop

Diesel Trucks Welcome

Fleet Work Welcome

Hours:

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Expert Diesel Engine Services by Fleet Authority


When it comes to diesel engine services, Fleet Authority is your trusted partner. We specialize in light and medium-duty truck diesel repairs, ensuring your vehicle is always in optimal condition.


Our ASE-certified technicians are dedicated to providing you with the highest level of service, right here in Fairfax and Prince Williams counties. We offer full-service diesel engine repair and maintenance services including:

  • 4x4 repairs
  • Air conditioning service and repairs
  • Alignments
  • Alternators
  • Batteries
  • Brake inspections, service, and repairs
  • Carburetors
  • Catalytic converters
  • Check engine light scans
  • Clutches
  • Computer scans
  • Coolant/antifreeze changes/flushes
  • CV and drive axles
  • Damaged hardware
  • Diagnostic services
  • Diesel engine repairs
  • Electrical repairs
  • Electronics
  • Emission system repairs
  • Engine performance exhaust/mufflers
  • Exhaust manifolds
  • Freon conversions
  • Fuel injection cleaning
  • Fuel pumps
  • Fuel tanks
  • Heater cores
  • Heating systems
  • Identifying noises and leaks
  • Oil changes/lube services
  • Radiator services
  • Rear ends
  • Scheduled maintenance
  • Starters
  • Stripped bolts
  • Suspensions, shocks, and struts
  • Tailpipes
  • Timing belt replacements
  • Tires - new and used
  • Transmissions
  • Tune-ups
  • U-joints
  • Water pumps
  • Welding and fabrication
  • Wheel balancing
  • Wheel cylinders
  • Wheel/tire alignments
  • Windshield washers
  • Wiper blades

Don't hesitate to reach out to us for your diesel engine needs.


Why Choose Fleet Authority for Diesel Engine Services?


At Fleet Authority, we understand the importance of maintaining your truck's diesel engine. Our services are designed to meet your specific needs and ensure your vehicle's longevity.


  • Expertise in light and medium-duty truck diesel repairs
  • Services performed by ASE-certified technicians
  • Convenient location serving Fairfax and Prince Williams counties
  • 24/7 early bird and night drop
  • Appointments that fit your schedule
  • Manufacturer scheduled maintenance offered


We invite you to contact Fleet Authority to experience the difference our services can make for your diesel engine needs.


Contact Us Today


Ready to experience the Fleet Authority difference? We're here to help. Contact us today to discuss your diesel engine service needs and discover how we can help you maintain your vehicle's performance and longevity. We look forward to serving you.

Reviews

Overnight Drop-Offs Welcome

Call Fleet Authority for the diesel engine services you need.

(571) 755-1384

(571) 755-1384

Phil and Annette at Fleet Authority have been working on our trucks for the past 20 years. They are the best. They are dependable, honest, mechanical, and a pleasure to do business with. I highly recommend them. You will not be disappointed.

- S. Renfrow, Logistics Manager M & M Auto

Learn More About

Fleet Authority

Located in Gainesville, VA, Fleet Authority specializes in light- and medium-duty truck repairs. 24/7 early bird and night drop. 6-month warranty on fleet work. Call today.

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