How To Become A Diesel Service Technician

A Diesel Service Technician keeps the big trucks rolling as they deliver goods to the stores we all patronize. If you are mechanically-minded, perhaps a career in this field is for you. Akin to Automotive Technicians, Diesel Service Technicians work on diesel-fueled equipment.

Check out our guide below to see how you can embark on a promising new career as a Diesel Service Technician!

Related Article: 40 Highest Paying Jobs With A Trade School Education

Table of Contents


What does a Diesel Service Technician do?

Diesel Service Technicians or Mechanics focus on trucks, buses, and other equipment that contain diesel engines. They work closely with customers, inspect vehicles, and make the necessary repairs.

Diesel Service Technicians also perform preventative maintenance, repair exhaust systems and electronic components, and much more!

What types of equipment do Diesel Service Technicians work on?

Diesel Mechanics work on all types of equipment that are powered by a diesel-fueled engine, such as: 

  • Semi-Tractor-trailers
  • Cranes
  • Bulldozers
  • Large Pickup Trucks
  • Buses
  • Commercial Boats
  • Heavy-duty Mobile Equipment

How do I become a Diesel Service Technician?

Most people who decide to become a Diesel Service Technician have been exposed to auto mechanics to some degree before choosing it as a career. In fact, with a high school education, you can begin your career at an entry-level position; however, to truly excel, you will need postsecondary education in diesel repair. 

School programs generally include hands-on practical work so you can gain valuable experience. On-the-job training is standard as well, sometimes lasting up to four years. Ongoing education is also expected to keep up with the latest and greatest in technology.

Will I need to earn certifications?

Yes, the National Institute for Automotive Service Excellence, or ASE, offers certifications after you have gained at least two years of work experience. To become ASE certified, you will need to pass the applicable tests. In addition, you will need to renew your certifications every five years. 

To test drive large vehicles, you will need a commercial driver’s license. 

Where do Diesel Service Technicians work?

Diesel Service Technicians often work for truck transportation services, wholesale truck trade centers, or diesel repair dealers or repair shops. Also, they are employed by government agencies and can be self-employed. 

How much does a Diesel Service Technician earn?

The BLS states that Diesel Service Technicians earned approximately $50,200 per year, as of May 2020. The highest 10% earned upwards of $76,460 annually.  

The highest-paid industry was local government agencies.

Are Diesel Service Technicians in demand?

The BLS states a projected job growth rate of 8% expected between 2020 and 2030, adding 28,100 job positions each year over the next decade.

Job security as a Diesel Service Technician can be attributed to the new popularity of diesel cars and light truck production. 

Is being a Diesel Service Technician a dangerous job?

In this position, many accidents can happen, no doubt. Therefore, Diesel Service Technicians must adhere to all safety precautions. As careful as one can be, possible injuries include leg and back sprains from lifting heavy tools or parts, twisting in unusual positions, electrical shocks, explosions, and eye injuries. 

In addition, safety protocols must be followed when working under large hydraulic lifts and with power tools.