Diesel Technology Classes

Learn to
tear down, tune up,
– and –

In just 6 months!


Train for one of the world’s most high-demand careers in a program that consistently produces the best and brightest graduates in the industry. With the skills you’ll learn in our shop, you’ll have the ability to make a living pretty much anywhere you want to go. Why do it at WyoTech? Because we’re going to send you out there with more than an education; we’ll send you with an impressive toolbox of knowledge and hands-on experience you can only get from us.

Get hours of hands-on training with 60% of your time spent in the shop!

Spend 6 months in four courses,
then choose your specialty



We’ll teach you the (literal) tools of the trade—then you’ll immediately put them to use to pull apart and rebuild your choice of a Cummins, CAT, or Detroit engine. Throughout the course, you’ll get familiar with performing tune-ups on all major diesel engine brands; learn how to adjust and run light-duty and heavy-duty engines; and learn how to navigate brand-specific websites.

  • Measuring pistons
  • Rebuilding/repairing engines
  • Performing tune-ups and overheads


engine management & refrigeration

We’ll set codes on the engine you’re working on; it’ll be your job to tell us what’s wrong, following a step-by-step diagnosis process that includes the use of websites for CAT, Cummins and Detroit. Additionally, you’ll go through the process of putting a 2016 Class 6 emissions truck in regen, and explore the latest technology for diesel management from engine, to exhaust, to diagnostics. On the refrigeration side, we’ll walk you through the full history of the modern-day refrigeration system, starting with the principles of heating and cooling, and ending with servicing and troubleshooting the refrigeration system. You’ll also have the opportunity to earn EPA 608 and EPA 609 certification when the course is complete.

  • Diagnosing and understanding engine issues
  • Working on cab air and transport refrigeration
  • Using latest industry technology


power trains

Here’s where we’ll lay your theoretical foundation in antilock brake systems and automatic traction control systems. We start with differentials, then move through hubs, kingpins, and steering. During the course, you’ll get to overhaul an Eaton-Fuller manual transmission; pull, inspect, and measure tolerances on clutches; pull and inspect single- and double-gear reduction differentials; work on and adjust brakes; and work on computer-controlled manual transmissions.

  • Failure analysis / troubleshooting
  • Clutch / transmission repair and adjustments
  • Automatic traction control systems


fluid power & electrical

Get the skills you need to work on any kind of heavy equipment! We’ll cover the foundations of hydraulics; hydrostatic drive transmissions; and how to properly hook up and perform tests using flow meters and pressure gauges. You’ll learn basic DC electricity and electrical systems; the fundamentals of heavy duty torque converters and Allison transmissions; and how to diagnose, troubleshoot and repair alternators and starters using freestanding engines and skid steer loaders. At the end of the course, you’ll have the opportunity to earn the Snap-On multimeter certification.

  • Basic DC and electrical systems
  • Hydraulic system troubleshooting and repair
  • Diagnosing alternators/starters


Specialty Program

Most Diesel students choose Advanced Diesel, Chassis Fabrication, Applied Service Management or High-Performance Power Trains, all of which are designed to complement the skills you’ve learned in the Diesel Technology program and help you stand out to employers in the industry.


Industry Certifications Available

  • ASE Entry-Level Certification
  • Snap-On®
  • 608 EPA License Certification
  • 609 EPA Certification
  • Kenworth 100 Certification

diesel technology Partners

certified diesel techs are in high demand

No matter where you go, the skills you acquire through our Diesel Technology program will give you the ability to make a living—whether it’s in the middle of acres of farmland, or somewhere with an ocean view. Although job placement isn’t guaranteed, our career services team works hard with our employer partners to place as many students as possible.

U.S. Median Wage


U.S. Job openings


U.S. Job Growth


Source: O*Net Online Sample of Reported Job Titles & Job Zone

WyoTech Core Program Start Dates

March 31, 2020

July 1, 2020

Sept. 30, 2020

The Best Diesel Mechanic School for Hands-On Diesel Mechanic Training

You can easily find mechanic classes and degrees at any technical college, and online diesel mechanic courses have become more popular. Still, they do lack one thing: hundreds of hours of hands-on education and experience. You’ll be working directly with diesel truck engines and technologies at our diesel technical school to get the best training on repair and maintenance.

In-Depth Diesel Mechanic Classes & Speciality Programs

In our diesel technician training classes, you’ll learn everything you need to know about emissions. Our technology training teaches you the latest and greatest in diesel technology. Our diesel mechanic classes also cover engine management, so when it comes to engine repair, you can diagnose and understand issues that come up. Our diesel mechanic program was designed to give you the experience and knowledge you need to enter the workforce and hit the ground running. When searching for schools for diesel mechanics, keep in mind that hands-on experience is the best way to learn for technicians and mechanics.

Continuing Your Mechanic Education for Diesel Service Technicians

We provide our mechanic students with ample opportunities to differentiate themselves and further their knowledge with our mechanics certificate program. Stand out to employers by earning an ASE Certification (from the National Institute for Automotive Service Excellence) and more. For additional information about our education requirements, financial aid, and degree programs, see our Frequently Asked Questions page or click to Request Info.


  1. Choose your Core program.
  2. Submit a request for info.
  3. Hear back from your local Admissions Representative within two business days.
  4. Apply for the next start date.


  • *By clicking "Submit", I agree that WyoTech may call and/or text me about educational services at the phone number provided, including a wireless number, using automated dialing technology. This consent is not required to attend our institution.