Diesel - Heavy Truck Qualifications - Certifications & Training Programs | AAI

Want to Become a Diesel – Heavy Truck Mechanic?

Do you enjoy working with large machinery? Do you want your work to help power the American shipping industry? If these things sound intriguing, then you may want to consider our Diesel – Heavy Truck Mechanic training program.

Our diesel mechanic career training program will teach you the skills and techniques to confidently pursue a career in diesel and heavy machinery maintenance. When it comes to choosing a trade school, there’s no better choice than Arizona Automotive Institute. AAI’s small class sizes, hands-on training, and flexible schedules help students learn how to maintain and repair diesel powered machinery.  

Is Diesel Mechanic a Good Career?

Diesel mechanic duties can vary depending on the worksite and equipment, and it can be a highly rewarding role. Mechanics work on the very machines that help power the American economy, moving parts, supplies and products all around the country, and the U.S. Bureau of Labor Statistics expects this field to grow 5 percent from 2018 to 2028.*


What Is Diesel – Heavy Truck?

The job of a diesel truck mechanic is both exciting and rewarding, and anyone who likes problem solving will enjoy uncovering the answers to complex issues that machines encounter on a daily basis. Heavy diesel mechanics get to work with a variety of complex tools while troubleshooting problems, coming up with creative solutions, and then deploying those solutions according to the needs of the vehicle.

What Do Diesel Mechanics Do?

Diesel engines are different from gasoline engines, and they typically power heavy duty vehicles and machinery such as trucks, buses, bulldozers, and cranes. When problems with diesel engines occurs, the shipping companies want to get their cargo back on the road as fast as possible. Mechanics need to work quickly, but safely to complete the needed repairs that will get the fleet moving again. 

Heavy truck repairs typically begin with a series of diagnostic steps, which requires working with customers who rely on their vehicles for their livelihood. After the issues are identified, mechanics often find themselves performing repair work on trucks and heavy transport vehicles of many kinds. Some of the repair tasks that heavy diesel mechanics may be asked to perform include:

  • Engine performance diagnosis and repair
  • Brake system repair
  • Steering and suspension repair
  • Diesel drivetrain inspection
  • Repair of important electrical subsystems, such as
    • PMI systems
    • HVAC systems
    • Drivetrain and chassis electrical systems

Heavy diesel mechanics often use both power tools and manual tools to get their work done, and AAI provides hands-on training in the safe use and handling of some of the most commonly-used tools in the profession.

How Much Money Do Diesel Mechanics Make?

Diesel mechanic pay can vary by shop and industry, as some employers choose to offer more service hours or additional overtime opportunities. The median annual wage for diesel service technicians and mechanics was $47,350 in May 2018. The lowest 10 percent earned less than $31,200, and the highest 10 percent earned more than $72,180.*


AAI cannot guarantee employment or salary.

Career Outlook for Diesel Technicians

As more freight is shipped, more diesel-powered trucks are needed. Trucks get cargo where trains and other forms of transportation can’t go. As diesel-based cars become more available, additional diesel mechanics could be needed to maintain those vehicles too. Per the U.S. Bureau of Labor Statistics, expected growth for Diesel Service Technicians and Mechanics is projected to grow 5 percent from 2018 to 2028.*


How Do I Become a Diesel Mechanic?

There are a number of technical and professional mechanic certifications available to showcase your mastery as a diesel service technician. AAI’s Diesel – Heavy Truck program is oriented towards two goals: first, ensuring that our students learn the skills and proficiencies employers are looking for, and second, preparing our students to sit for certification examinations.

The main certifications AAI’s diesel mechanic program focuses on include:

AAI’s instructors work to prepare students for these examinations.

*AAI does not guarantee third-party certifications. Certification requirements for taking and passing certification examinations are not controlled by AAI but by outside agencies and are subject to change by the agencies without notice to AAI. Therefore, AAI cannot guarantee that graduates will be eligible to take certification examinations, regardless of their eligibility status upon enrollment.

Learn the Skills at AAI!

We’d like to invite you to experience our program for yourself. Our admissions team is excited to speak with you about all the details of our Diesel – Heavy Truck program, so feel free to reach out for additional information if you have any questions. We’d also be happy to arrange a visit to our campus so you can see our students and instructors in action, which would allow you to find out if AAI could be the right solution for your career training needs.