Diesel & Heavy Equipment Technician

Diesel & Heavy Equipment Technician

Technical Diploma

What is the difference between gasoline and diesel engines? Beyond requiring a different fuel, diesel engines are quite different in design and have different needs and requirements when being serviced. Add to this that diesel engines are put to the test in hard-working vehicles like buses, large trucks, boats, and bulldozers, and it’s no surprise you need a specialized mechanic—a diesel and heavy equipment technician—to work on them.

A Closer Look

Diesel technicians deal with everything from routine oil changes to full engine rebuilds and HVAC systems. They must understand and work on the vehicle’s electrical system, engine, and working parts, using diagnostic computer software to identify issues.

A diesel technician’s work environment varies depending on the type of work they choose to do. Truck technicians spend most of their time working in a shop. Technicians who work on heavy equipment or agriculture equipment may spend more of their time working outdoors.

What You'll Learn

Graduates of Mid-State’s Diesel & Heavy Equipment Technician program have the knowledge and skills to confidently diagnose and repair mechanical and electrical problems in trucks, buses, construction equipment, farm equipment, and industrial machinery.

Through hands-on classroom learning and training on state-of-the-art equipment, you will learn to perform preventive maintenance and troubleshooting procedures, rebuild components, and respond to field service calls. You’ll also participate in field trips, tours, and equipment demonstrations, and you’ll get real-world experience by maintaining Mid-State’s vehicle fleet and operating onsite equipment.


  • Agricultural Machinery Technician
  • Heavy Equipment Technician
  • Locomotive Technician
  • Over the Road Truck Technician
  • Portable Power Technician
  • Reefer Technician
  • Trailer Technician

Your Instructors

The instructors in the Diesel & Heavy Equipment Technician program bring the right balance of professional experience and teaching expertise to the classroom. Meet our full-time faculty!


After working in the transportation industry for several years, Scott realized his passion was to teach what he loved. He received his bachelor’s degree from the UW-Stout and has taught for 20 years in the diesel field. He enjoys working with local industry and learning cutting-edge technology that he can incorporate into his program.

“My biggest reward as a teacher is to see my students thriving in their new careers, knowing I helped get them there.”


Chris earned his associate degree from Mid-State. He works with truck OEMs, dealerships, and private shops. This work keeps him up to date on current technology used on heavy trucks as well as with industry needs for technicians.

“There is nothing better than the ‘aha’ moment with a student, that moment when a concept ‘clicks.’ I love that Mid-State’s environment creates those moments for students on a regular basis."

Program Information Guide

See the printable Program Information Guide to learn about career pathways, transfer opportunities, program outcomes, and more.


Catalog# Title Credits
Term: 1
10462116 Metal Fabrication 3.00
10605108 Intro to Electronics 2.00
32404375 Service Practices in Transportation Industry 1.00
32412308 Braking Systems-Diesel 5.00
32412309 Suspension & Steering Systems 5.00
(16 Credits)
Term: 2
10801199 Employment Strategies 3.00
10102130 Career Development 3.00
32412303 Heating/AC-Diesel 3.00
32412305 Preventive Maintenance-Diesel 3.00
32412312 Drive Trains 4.00
32412313 Electrical Systems 4.00
(17 Credits)
Term: 3
10462121 Mobile Hydraulics Repair 3.00
10804107 College Mathematics 3.00
32412324 Engine Repair 5.00
32412327 Fuel Systems & Alternative Fuels 5.00
(16 Credits)
Term: 4
32412310 Engine Performance & Emissions-Diesel 5.00
32412311 Advanced Electricity-Diesel 5.00
32412330 Capstone-Live Diesel Repair 2.00
32806351 Applied Science 2.00
(14 Credits)
Total Credits: 63