University of Northwestern Ohio

Diesel Technology

Students at UNOH can choose one of three different tracks within the Diesel Technology field: Medium/Heavy Duty Diesel Technology, Light Duty Diesel Technology, or Diesel Advanced Technology Education with a focus on Mack and Volvo engines.

All three tracks will focus on general knowledge of the vehicle and its engine components, learning how to troubleshoot problems, and using computer software to run diagnostic procedures. The differences come in the type of vehicles students will learn to service.

Medium/Heavy-Duty Diesel

Medium/Heavy Duty diesel technicians will work on diesel engines and vehicles designed for shipping, farming, construction, and more such as semi-trucks, buses, and rail engines.

Light-Duty Diesel

Light Duty diesel technicians will focus on 8.0 liter diesel engines and smaller which are designed for on-the-road consumer cars and trucks as well as compact tractor and skid-steer engines.

Mack/Volvo DATE

The Diesel Advanced Technology Education or DATE program, will train students to become a Professional Level Mack and Volvo technician upon graduation! This certification will give graduates the ability to find immediate employment at any of the hundreds of Mack and Volvo dealerships across the country.

Our students train with the same tools and latest equipment that is found in service centers and dealerships across the nation. Whether it’s on the shop floor, in the live engine room, or on the diesel dynos, most of the training in these courses will be hands-on utilizing diesel training aides from: Cummins, Detroit, Caterpillar, Mack, Volvo, DuraMax and many more.

As a student in one of the College of Applied Technologies' diesel programs, you could also obtain your CDL. Within the CDL courses, students will gain classroom and hands-on knowledge needed to pass the state exam with one of our several big rigs and a specially designed course. Best of all, UNOH will pay for the fees to sit for the Ohio Class A state license which can be transferred out of state.

All of our students have the opportunity to take ASE tests to become ASE Certified, an industry-wide certification of excellence. As a benefit to you, the University will cover the cost of up to two ASE tests for each student.

Courses Include

  • Diesel Performance and Diagnosis
  • Diesel Engines Electronic Controls
  • Truck Air Systems, Brakes, and Preventative Maintenance
  • Heavy Equipment and Vehicle Integrated Electronics
  • Diesel Steering and Suspensions
  • Truck Drive Trains
  • Diesel Engine Diagnosis and Repair

Important Facts

  • 20 Students Per Class Maximum
  • 70% Hands-On Training
  • Coeducational Campus
  • Student Activities Year-Round
  • Over 20 Clubs to Join
  • Free Admittance to UNOH Indoor Athletic Complex, UNOH Athletic Events, and Limaland Motorsports Park

of Diesel Technology Graduates are Employed or Continuing Their Education


The Diesel Technology field is a huge market filled with many job opportunities. According to the U.S. Bureau of Labor Statistics (BLS), the average annual wage of a Bus, Truck, and Diesel Engine Specialist or Mechanic is $53,020! Annual earnings range between $41,600 and $76,150 per year depending on your job title and location of employment. Also according to the BLS, there are expected to be at least 28,100 new positions available for graduating technicians in the coming years.

Average Annual Earnings: $53,020

Diesel Technology Programs

View and Download the Diesel Technology programs offered at the University of Northwestern Ohio.