Diesel Careers 101: Your Ultimate Guide

The landscape of technology is constantly evolving, and with that, the demand for skilled professionals in various industries is on the rise.

Diesel technology is a field that offers unique advantages and promises excitement for those who have a passion for heavy-duty engines and technology.

While careers in diesel mechanics are becoming more competitive, attending a diesel mechanic program like the one at Universal Technical Institute (UTI) can help.¹ Stick around to learn more about the diesel technician career path.

Understanding Diesel Tech Careers

Diesel technicians diagnose, repair and maintain some of the most important equipment in the world, equipment that transports goods, supports our power grid and helps maintain the food supply.

As the population grows and the environment changes, diesel technology advances, increasing the knowledge requirements for trained technicians. In fact, more and more diesel employers are narrowing their search to candidates with a post-secondary education.

Let's take a look at different industries that rely on diesel technicians.

Types of Diesel Careers

Diesel mechanics can work in any industry that uses diesel engines. Diesel tech careers can take numerous directions, each with its specific focus and rewards. Here are a few popular paths to consider.

Trucking and transportation              

The trucking and transportation industry is the heart of commerce. It's a vast network responsible for moving goods across the country to keep our economy moving. Trucks are the backbone of the industry, carrying everything from food to fuel.

And that’s where diesel mechanics come into play.

They're the skilled individuals who keep these trucks in top shape. They diagnose and fix problems, perform routine maintenance and overhaul engines. Without them, the wheels of the transportation industry would come to a halt.

Agriculture

The agricultural industry keeps our population fed. Farmers grow food, raise livestock and cultivate the land. But behind this farm life, there's a lot of heavy machinery at work, including tractors and seeders.

Diesel mechanics are the ones who maintain, repair and overhaul these machines. Agricultural mechanics experience the satisfaction of directly supporting a vital aspect of our food production system.

Power generation

The power generation industry produces and supplies electricity to homes, businesses and communities through diesel-powered generators, internal combustion engines and other gaseous engines. Diesel mechanics are crucial in this industry. They possess the knowledge and skills to maintain, fix and replace this equipment.

If you’re interested in pursuing this path, find a diesel mechanic school that provides power-generation training. In addition to our core-diesel program,  UTI also offers the Cummins Power Generation Manufacturer-Specific Advanced Training (MSAT) program, where students train on an industry-leading brand's equipment and can graduate as CMI Level 1 Technicians. 

Repair and maintenance

The repair and maintenance industry helps keep the diesel vehicles you see on the road safely operating. Diesel mechanics who work in this industry spend their day-to-day performing routine maintenance and repairs. They may work in a dealership or at a diesel repair shop.

They can also work as mobile mechanics who meet customers roadside or elsewhere offsite with a plan to get them up and running as soon as possible. 

Government

State and local governments rely on diesel vehicles and hire diesel mechanics to help keep things running smoothly. Government diesel mechanics may service school buses, garbage trucks, police vehicles, forestry equipment and construction vehicles. They also have the fulfillment of knowing they’re making a significant contribution to their community.

Average Salary of a Diesel Mechanic or Technician

While the salary made in a diesel technology role can vary based on things like time in the industry and level of experience, it can be helpful to know an estimate for what to expect when entering the field.

According to the BLS, the median annual salary for bus and truck mechanics and diesel engine specialists in the United States was $58,970 in May 2023.²⁹ This means half of diesel technicians earned more and half earned less. Keep in mind that salary depends on several factors, including experience, employer, demand and cost of living in the area.

Read more: Diesel Mechanic Salary in the U.S.

Are Careers in Diesel Mechanics in Demand?

According to the U.S. Bureau of Labor Statistics (BLS), there are 25,600 estimated average annual diesel technician job openings in the U.S.⁴³ These openings account for both new positions and replacements due to workforce turnover. Diesel-powered vehicles and equipment are widely used in transportation, construction, agriculture and energy, requiring trained technicians to perform maintenance and repairs. For those interested in developing hands-on skills, training programs like those offered at UTI can help prepare students for careers in the diesel industry.

Diesel Technology Job Requirements and Skills

Requirements

Landing diesel technology jobs is becoming increasingly competitive. A knack for working with your hands or mechanical aptitude may no longer be enough to get your foot in the door. Today’s diesel vehicles are built with complex electrical systems, requiring technicians to have a broader range of knowledge.

Duties vary by industry, but most diesel technology job descriptions will include the following:

• Speaking with customers and reading work orders.
• Using technical charts and manuals to plan work.
• Inspecting important components and systems, like the engine and brakes.
• Reading and interpreting diagnostic test results.
• Repairing or replacing faulty components related to mechanical and/or electrical equipment.
• Performing routine maintenance such as oil changes, tire rotations and more.

Skills

UTI students can gain knowledge on vehicle electronic systems and technology and more in just 45 weeks.⁷ In addition to formal training, many diesel technology jobs call for skills like adaptability, dexterity, organization, love of learning, physical strength and problem-solving.

Mastering the ins and outs of diesel engine repair, maintenance and diagnostics is no small feat. It requires a unique skill set, an eye for detail and a strong understanding of diesel technology principles.

Why Consider a Diesel Technology Career?

You may be wondering if a diesel mechanic is a good career choice. It’s important to take time to think about what your interests are and what you want out of a career.

Several aspects can make a career in diesel technology a popular career choice that can be considered when deciding if it’s the path for you. These include:

Diverse career opportunities

Diesel technology careers offer a wide range of employment opportunities across various sectors. Diesel technicians can find work in diesel repair shops, fleet maintenance departments, construction companies, agricultural operations and even in the marine and power generation industries.

This diversity allows individuals to explore different facets of the field and choose a niche that aligns with their interests and skills.

Continuous career development

A career in diesel technology offers ongoing opportunities for learning and advancement. As technology evolves, diesel technicians can expand their expertise through manufacturer-specific training, certifications and specialized courses.

Many employers support continuing education to keep technicians up to date with advancements in diagnostics, emissions systems and alternative fuel technologies. With experience, technicians can move into roles such as shop supervisors, service managers or even start their own businesses.⁷⁷

Hands-on work

The field of diesel technology is hands-on, making it an ideal choice for individuals who enjoy practical, tangible work.

Technicians work directly with diesel engines, performing diagnostics, repairs and maintenance. This hands-on experience not only keeps the job interesting but also hones problem-solving skills as technicians troubleshoot issues and implement solutions in real time.

This aspect of the profession provides a constant learning curve and keeps technicians engaged throughout their careers.

Read more: Diesel Mechanic Careers: A Comprehensive Guide

Demand and Future Outlook

One of the main advantages of pursuing diesel technology jobs is the demand for skilled professionals.

Diesel engines are the workhorses of many industries, including transportation, construction, agriculture and energy. As these industries continue to grow, the need for qualified technicians who can maintain, repair and optimize diesel-powered vehicles and equipment remains.

How to Start Your Journey in Diesel Technology

So, you’ve decided that a career in diesel technology is right for you. Now what? When pursuing this path, it can be helpful to enroll in a training program at a trade school to help you get the hands-on training and education that employers are looking for.

UTI offers a 45-week Diesel Technology program that provides a foundation of knowledge that will prepare students for the industry.

Students learn how to diagnose, maintain and repair diesel engines and other diesel equipment that will help them transition into careers as diesel technicians. Courses combine hands-on training with online instruction to mirror industry training.¹⁸

The program is also accredited by the National Institute for Automotive Service Excellence, or ASE.Graduates of the program are prepared to test for ASE certification and can substitute their training for one of the two years of required work experience to become ASE certified.

Diesel mechanic certifications are not required for the industry but can be beneficial when entering the workforce because they help show that someone has knowledge in specific areas. They can help make applicants stand out to potential employers!

For those who want to further their education, the Diesel Technology program even offers specialized training programs with some of the leading names in the industry:

• Cummins Diesel Engines
• Cummins Power Generation
• Daimler Truck Finish First (DTNA)
• Peterbilt Technician Institute (PTI)¹⁵

Overall, UTI’s Diesel Technology program is a great place to start when preparing for a career in the diesel industry. We even have dedicated teams that can help offer support with things like finding housing to financial aid!¹⁰

Read more: How to Become a Diesel Mechanic (Expert Tips)

5 Tips for Finding Careers in Diesel Mechanics

1. Network

What you know is important, but so is who you know. Networking isn’t as complex as it seems. It’s as simple as utilizing what you already have. Ask your friends or family for referrals. If you’re attending diesel mechanic school, spark conversations with your classmates about their plans post-graduation. Chat with your instructors about their friends in the industry.  

2. Utilize job search platforms

In today’s digital age, it’s rare for an employer to hand out printed applications. Job search platforms are becoming increasingly popular, and you should use them! Not to mention, they make it easier to refine your search to a specific role in an industry you’re passionate about.

3. Browse company websites

If you’re not having luck on job search platforms, try browsing company websites. Some employers post open positions on their site. Browsing company websites is also an effective way to familiarize yourself with their culture before an interview. Look for values that align with your own and expectations that match your training and then prepare to communicate both!  

4. Attend career fairs

Career fairs are another way to network. And they’re primed with opportunities! Employers who attend career fairs are typically looking to hire as soon as possible, so go prepared with your resume and contact information. Wear professional clothing and practice “selling yourself” beforehand. 

5. UTI can help

While UTI’s technical training plays a significant role in preparing students for careers, our resources extend past that. We have established a strong reputation, and various employers trust us to train their future technicians. Learn about some of the ways we prepare students for careers, as well as how we connect employers with top talent. 

Common Diesel Career FAQs

Should I go to college or trade school to start my career in diesel technology?

If you're considering a career in diesel technology, a trade school like UTI offers hands-on training that can get you career-ready in less than a year, compared to two to four years at a traditional college.^1,7,18 While colleges may include general education courses, UTI’s focused curriculum combines classroom instruction with real-world training from industry-experienced instructors. Plus, with manufacturer partnerships and career connections, UTI helps prepare you for opportunities in trucking, heavy equipment, marine engines and more.

How does trade school compare with college in terms of cost?

Cost varies by institution. However, trade schools have a shorter duration. This means that graduates can pursue careers sooner to potentially get a quicker return on their investment.

How long does it typically take to train for a diesel career?

Most training programs are two years or less. You can complete UTI’s career training for diesel mechanics in just 45 weeks!⁷

Are there any certifications or licenses required for a career in diesel mechanics?

While there are no required certifications to pursue a career in diesel mechanics, having these credentials under your belt can be an added benefit when searching for a job. Graduates of UTI’s Diesel Technology program are prepared to test for ASE certifications and can substitute their training for one of the two years of work experience needed to become ASE certified!

What are the main differences between auto and diesel technology jobs?

Auto and diesel technology jobs differ by the type of equipment serviced. Automotive technicians handle smaller vehicles with gas engines and typically work in dealerships or automotive repair shops. Diesel technicians handle heavy machinery like trucks, buses and farm equipment. They can also work in a variety of environments, including dealerships, repair shops, truck stops or even railroads!  

How do I apply for UTI’s Diesel Technician program?

Applying for UTI’s Diesel Technician program is a simple process designed to help you get started toward a career path quickly. First, visit our Diesel Technology program page to explore program details and admission requirements. Next, connect with an Admissions Representative, who will guide you through the application process, discuss financial aid options (for those who qualify), and help you plan your next steps. Once you complete your application and meet the requirements, you’ll be on your way to hands-on training that can prepare you for a career in the diesel industry.^1,18

Train for a Diesel Career at UTI

Ready to take the first step toward preparing for a diesel career? Consider UTI. With campuses across the country and a long-standing reputation for excellence, we can teach the skills and knowledge needed to pursue a career that matters. Request more information about our program or schedule a tour at a campus near you.