Phone: 800.521.7158

Diesel Technology Classes

A Hands-On Diesel Mechanic School

Start your training today! Fill out the form and a WyoTech representative will respond as soon as possible.

Learn to Tear Down, Tune-up, and Rebuild Diesel Vehicles in Only 6 Months

Diesel technicians are in high demand within the diesel industry. You are at the forefront of the auto tech world. You break the mold and forge your own path, fueling the future of vehicles. At WyoTech, we aim to provide an unparalleled experience with our Diesel Technology program. With the skills you’ll learn from our shop, you’ll have the ability to make a living practically anywhere. We’re focused on more than education; we want you to graduate with an impressive toolbox of knowledge, hands-on experience, and a crew that has your back.

You’ll be attending one of the most well-known diesel technology schools in the nation.

50% of your time will be spent working in the shop!

What’s Different About WyoTech’s Diesel Technology Program?

We pride ourselves on developing young minds in programs we know they’ll succeed at. WyoTech is a name you can include on your resume with pride. Many of our diesel program students graduate to move into successful careers at premier diesel companies. What truly makes our Diesel Technology program unique is the efficiency and knowledge we provide our students. Our diesel tech instructors are hand-selected with years of previous experience working on the diesel shop floor, so you’ll get firsthand experience working with pros.

Family is a big part of who we are. We want our students to get to know one another and feel comfortable connecting and collaborating with each other and our faculty. If you want to attend a well-known school where you can learn quickly, have a community, and develop incredible skills, WyoTech is the place for you.

Your program will consist of 6 weeks of

Get more details on each course below.

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—no matter if 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 (2022)


U.S. Job Openings


U.S. Job Growth

Source: U.S. Bureau of Labor Statistics

Six Weeks of


We’ll teach you the tools of the trade, then immediately put them to use to pull apart and rebuild a Cummins, CAT, or Detroit engine. Throughout the course, you’ll get familiar with troubleshooting and diagnosing; performing tune-ups on all major diesel engine brands; adjusting and running light-duty and heavy-duty engines; and navigating brand-specific websites.

  • Use precision measuring tools
  • Rebuilding/repairing engines
  • Performing overhead valve adjustments
  • Mechanical troubleshooting
Six Weeks of

Engine Management Systems

We’ll set codes on the engine you’re working on; it’ll be your job to tell us what’s wrong, following manufacturer step-by-step diagnosis process that includes the use of websites for CAT, Cummins, and Detroit. Additionally, you’ll go through the process of understanding the concept of multiplexing and can-bus in regen, and explore the latest technology for diesel management from the engine, to exhaust, to diagnostics.

  • Learn the basics of electrical theory
  • Learn to troubleshoot using scan tools, multimeters, and other equipment and industry tools
  • Learn the basics to circuits, starting and charging systems, multiplexing, and more
Six Weeks of


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
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Six Weeks of

Fluid Power and Refrigeration

In this course, we will go over the basic understanding of Hydraulics and Hydraulics safety. We will cover hydrostatic drive transmissions, skid steer loaders, and other equipment repair and troubleshooting of hydraulic systems. You will learn correct use of flow meters and pressure gauges to diagnose hydraulic and hydrostatic systems. Also covered in this area are the operation, testing and servicing of in-cab air conditioning and transport refrigeration. This phase offers the opportunity to get a 608 and 609 EPA certification for HVAC service and repair.

  • Hydraulic system troubleshooting and repair
  • Learn to rebuild hydraulic pumps and cylinders
  • Troubleshoot, diagnose, and repair in-cab air conditioning and transport refrigeration systems
Six Weeks of

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.

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Industry Certifications Available

  • Snap-On 525F Multimeter Certification
  • 608 EPA License Certification
  • 609 EPA Certification
  • 5 – ASE Student Certifications
  • Freightliner Get-Ahead Certification
  • John Deere University Certificate

Core Program Start Dates

July 1, 2024

September 30, 2024

December 30, 2024

Diesel Tech FAQs

Is it hard to learn diesel mechanics?

Taking the Diesel Technology program at WyoTech makes learning diesel mechanics/technology easy. We focus on teaching with more hands-on work than only books and homework. Studies are very important, but getting greased up and working in the shop is what will prepare you for real-world experiences.

How long does it take to become a diesel technician?

Our Diesel Technology degree program takes 6 months to complete. To graduate with your diploma, it takes a total of 9 months since a 3-month course in one of our specialty programs is necessary to complete. Other diesel technology courses take a minimum of 1 year to complete and be job-ready–then there’s the job searching after you graduate. With WyoTech, we have various business partner opportunities that our career services team can *help you with.

*Job positions aren’t guaranteed.

Is becoming a diesel technician a good career choice?

Yes, being a diesel technician is a great career choice. The diesel technician job market has opened up immensely over the past few years. We’ve seen higher demand, better salaries, and requests for well-educated technicians drive up.

How much do diesel technicians earn?

According to Indeed (2023), the median salary for diesel technicians in the U.S. is $82,051. What you make will depend on experience level, the state that the job resides, and what the job requires.