Superior DieselTruck Repair.

Our experienced certified technicians will repair your truck using our most up-to-date equipment. We can analyze, diagnose, and repair your complex electronic components as well as change out a simple headlight bulb.

We also repair and change tires to get you back on the real fast. Are your truck tires wearing unevenly? We do all wheel alignments with our state of the art Hunter wheel alignment machine.

Schedule Repair

Engine Service

Cummins, Detroit, and more

Electrical Repairs

Complete electrical diagnostics

Brake System Services

Air brake and hydraulic systems

Transmission Service

Manual and automatic transmissions

Transmission Repairs

Complete overhauls and rebuilds

Air Conditioner Repair

Climate control systems

Computer Suspension Service

Air ride and suspension diagnostics

Wheel Alignments

Hunter alignment system

Frame Alterations

Structural modifications

Fleet Service

Custom metalwork

Mobile Service

On-site emergency repairs

Preventative Maintenance

Fleet maintenance programs

Why Choose Us

Trusted by Drivers Across the Midwest

We take pride in delivering exceptional service that keeps your trucks running smoothly and your business moving forward.

Expert Assessment

Our mechanics are here and ready to perform a full assessment and diagnostic on your truck. We collaborate with you and use the data collected to provide the best advice on how to quickly and reliably repair your vehicle.

Fast Turnaround

Whether it's a routine inspection, out-tune-up, or a full repair, Superior Diesel has the knowledge, skills, and decades to make sure your semi truck is in peak condition and on the road.

Proven Excellence

We take fast pride in your success, delivering products, services, and information tools that solve your immediate needs as well as long-term goals. Our employees are highly trained, passionate about their work.

What Sets Us Apart

The tools, expertise, and commitment to get the job done right

State-of-the-art Hunter wheel alignment machine

Latest diagnostic equipment

Certified ASE technicians

Authorized Cummins service dealer

Mobile service available

DOT inspections performed on-site

Fast, reliable repairs

Competitive pricing

Our Locations

Visit one of our two convenient locations or give us a call. We're here to help!

DeKalb Location

197 Harvestore Dr., Suite 1 DeKalb, Illinois 60115

Waterman Location

350 W. Lincoln Hwy Waterman, Illinois 60556

Ready to Experience Superior Service?

Let us show you why we've been DeKalb's trusted diesel repair experts for over 40 years. Call today or schedule your service online.

(815) 748-0754
Schedule Service