At Fleet Master Truck & Trailer Repair, we understand that the efficient and reliable operation of your diesel trucks and fleets is crucial to your business. Located in Bedford Park, Illinois, our team of certified and experienced technicians offers a comprehensive range of diesel engine repair, rebuild, and conversion services to keep your vehicles running at peak performance.

Engine Repair Services for Diesel Trucks and Fleets
At Fleet Master Truck & Trailer Repair, our technicians are trained and equipped to diagnose and repair any engine-related issue your diesel truck or fleet may experience. Whether a simple repair or a more complex issue, we have the expertise and resources to get your vehicles back on the road quickly and efficiently.
Our diesel engine repair services include
- Diagnostic testing and troubleshooting
- Fuel system repairs
- Cooling system repairs
- Exhaust system repairs
- Electrical system repairs
- Turbocharger repairs
We use advanced diagnostic tools and equipment to pinpoint the root cause of any engine problem and ensure an accurate and effective repair solution. Additionally, we use only high-quality OEM parts to maintain the durability and performance of your diesel engine.
Comprehensive Engine Rebuild Services
Sometimes, a simple repair isn't enough to get your diesel truck or fleet back in top condition. In these cases, an engine rebuild might be the best solution. An engine rebuild involves disassembling the engine, inspecting all parts, replacing worn or damaged components, and reassembling the engine to factory specifications.
Our engine rebuild services include
- Full engine disassembly and inspection
- Cylinder head rebuilding
- Crankshaft and camshaft machining
- Connecting rod reconditioning
- Engine block machining
- New or reconditioned engine components installation
- Engine reassembly and testing
At Fleet Master Truck & Trailer Repair, we use state-of-the-art machinery and equipment to ensure the highest quality rebuild. Our team of skilled technicians follows a thorough process to ensure that your rebuilt engine will deliver the power, efficiency, and reliability you expect from your diesel truck or fleet.
Diesel Engine Conversion Services
In addition to repair and rebuild services, Fleet Master Truck & Trailer Repair also offers diesel engine conversion services. Looking to upgrade your truck’s engine to a better model, or want to swap your Detroit Diesel to a Cummins? The team at Fleet Master Truck & Trailer Repair has you covered. We can also perform complete engine conversions if you’re looking to swap your truck or fleet’s engines to one powered by natural gas, biodiesel, or hybrid electric.
No matter what type of conversion you’re looking for, our experienced technicians will work closely with you to determine the best conversion option for your specific needs and goals. We utilize only the highest quality conversion kits and components to ensure seamless integration with your existing diesel engine system.
Contact Fleet Master Truck & Trailer Repair Today for Your Diesel Engine Repair Service Needs
Don't wait until your diesel engine problems escalate. Trust the experts at Fleet Master Truck & Trailer Repair in Bedford Park, Illinois, to provide the highest quality repair, rebuild, and conversion services for your diesel trucks and fleets. Contact us today at 708 - 898 - 4961, or stop by our shop to schedule an appointment or learn more about our comprehensive diesel engine services. Let Fleet Master Truck & Trailer Repair help keep your diesel trucks and fleets performing at their best, so you can focus on what matters most – your business.
FAQs
Why is regular engine oil maintenance critical for diesel trucks?
Routine engine oil maintenance helps prevent premature engine wear, supports component health like turbochargers, and ensures your engine runs cool and efficient—especially under heavy loads. Skipping service leads to sludge, low pressure, and major breakdowns.
Heavy-Duty Diesel Mechanic Specialists
Gleb Moiseev
"Highly recommended this shop. After engine overhaul my 2012 Cascadia has a new heart. Reasonable prices for fairly prompt work. Thank you guys. "
Kenneth Foreman
"Love this shop! Andrei the fleet manager is the best and will make sure everything gets taken care of with the truck! Highly recommend! Won’t regret it. Easy in and out shop in the Chicago land area!"
Misha Nehoda
"Whether you need an oil change, brake repair, tire repair, they've got you covered. The guys do their job quickly, even when I showed up at the last moment, without calling in advance."