
Services at Diesel Dealers
Local Automotive Services
At Diesel Dealers in Imlay City, MI
Diesel Dealers is your one-stop shop for expert diesel service, repairs, and custom upgrades. From engine overhauls and transmission builds to oil changes and multi-point inspections, our certified mechanics know diesel inside and out. We keep your truck running strong with specialized care for Powerstroke, Cummins, and Duramax engines—because not every mechanic shop is built for diesel.
Need suspension work, brake service, or fleet maintenance? We’ve got you covered. Looking for performance upgrades, custom builds, or off-road modifications? We do that too. Whether you're hauling, plowing, or pushing limits, Diesel Dealers is here to keep you on the road and running at peak performance.

Engine Repair
Our certified diesel mechanics are trained to identify and fix any issue related to your diesel engine. Whether you are dealing with a minor inconvenience or facing a catastrophic engine failure, our team of trusted mechanics can get the work done to get you back out on the road.
Our team of mechanics have spent their entire careers working on the leading diesel engines including: Powerstroke, Cummins, and Duramax. Don’t take your truck to the corner mechanic shop. Work with the shop that knows every part and system built into your diesel engine.

Suspension Repair
Michigan roads are rough, and your vehicle takes a beating every time you hit a pothole or bump. Your suspension system absorbs these impacts, keeping you in control, but over time, key components like ball joints, tie rods, and control arm bushings wear out. If your steering feels loose or you hear strange noises, it could be a sign that something needs attention.
Catching suspension issues early keeps you safe and saves you money on bigger repairs down the road. At Diesel Dealers, our trusted pros will inspect your suspension, spot small problems before they turn major, and get you back on the road with confidence.
Oil Changes
Don’t go to your local general mechanic for an oil change – diesel motor oil is formulated specifically for diesel engines. Think of the diesel oil as your motor’s lifeblood circulating through the engine and you will understand and appreciate the importance of clean and properly formulated oil to maintain engine performance.
Here at Diesel Dealers, we can completely overhaul the engine, but we would prefer to do your oil changes to maximize the life of your engine.

Brake Service
Functioning brakes are essential to your safety and to the safety of drivers and pedestrians around you. We can take care of all your brake needs including:
- Replacing and turning rotors
- Brake pad replacement
- Regular brake inspection
- Brake fluid inspection for moisture content and contaminates


AC & Heat Repair
Michigan winters can be brutally cold and our summers sizzling. At Diesel Dealers, we want both you and your vehicle to stay a safe and comfortable temperature. We will visually inspect your air conditioning and heating systems looking for any leaks or damage. If you’re A/C system just needs to be recharge or your heater needs to be flushed, we can do that too!

Multi-Point Inspection
Today’s diesel vehicles are packed with complex systems, and proper maintenance is key to keeping them running strong for years. A multi-point inspection from Diesel Dealers helps catch minor issues before they turn into costly repairs. Don’t be penny wise and pound foolish—routine inspections can save you money and keep your truck on the road longer.
Our multi-point inspection covers everything from running diagnostics to checking your drivetrain, tires, fluids, and safety equipment. We inspect belts, hoses, brakes, and more to ensure your diesel is operating at peak performance. Trust Diesel Dealers to keep your vehicle reliable and ready for the road.
Custom-Build Transmissions
Different people need different things from their trucks and their transmission. Whether you are looking for a smooth ride, some more power, maximum power, or heart-pounding performance, Diesel Dealers can customize your transmission to meet your specific needs.

Fleet Repair
We are committed to maintaining your fleet vehicles so that you can continue to serve your customers. Our mechanics and repair technicians are experts in preventative maintenance focusing on fast estimates using the latest diagnostic tools to pinpoint issues and getting you back on the road quickly.
Let us keep your fleet vehicles running with our periodic maintenance program, replacement parts, and tracking vehicle maintenance history. When you need to minimize cost and maximize productivity, we’ve got your back.


Vehicle Customization
For many small business owners, trucks do not come off the assembly line ready to go to work. If you need your vehicle customized to do your job, we can help. Diesel Dealers provides upfitting solutions for your vehicle needs. Just some of the customization includes:
- Truck bed modifications
- Snow plow packages
- Cranes
- Utility truck fabrications
- Lift gate additions / modifications
- Lift kits
- Custom suspension
- Light bars and hydraulics
- High performance modifications

Recreational / Off-Road Vehicle
Here at Diesel Dealers, we like to have a little fun on the weekends. If you have Recreational or Off-Road Vehicles that are in need of some maintenance or repair, we can help. Our mechanics have extensive experience maintaining and repairing our customer’s recreational vehicles.
Parts at Diesel Dealers
Your one-stop shop for all your diesel needs. A full-line of parts for Powerstroke, Cummins and Duramax engines. We have parts for:
- Engine Repair and Performance
- Drivetrains and Chassis
- Vehicle Exterior and Interior
Search for your part based on your engine and vehicle type, then get all of the information on your part including a detailed description, specifications, and features. Order your parts directly through our website or call and talk to our licensed service technician who can answer all of your questions.

Vehicle Sales
Sometimes we run across an old classic truck or a real workhorse that requires some TLC. It just so happens we have mechanics, in-house, that know a truck with “good bones” and has the knowledge and skills to rebuild that vehicle into its former glory, getting it back out onto the road where it belongs. Check out our Vehicle Sales section every now and then to see what we are working on and what we have for sale.
