Diesel Mechanic Certification: Types and Tips

From shipping supplies over the water to trucking supplies to retailers, New York corporations utilize diesel-powered vehicles for many of their transportation needs.

Because diesel engines are more durable and fuel economical than gasoline-powered engines, diesel-powered vehicles are becoming a growing essential to America’s commerce infrastructure. Diesel mechanics play a vital role in this industry, applying the necessary skills and tools to repair and maintain diesel engines.

Aspiring diesel mechanics in New York have various educational avenues they can take to reach professional status, whether it is completing a company-run diesel mechanic program or earning a degree in diesel technology.

Both training avenues require potential candidates to have earned their high school diploma or GED, and many diesel mechanic schools in New York require students to have already completed four years of high school English, two years of high school math, and two years of high school science before they are eligible for enrollment.

diesel engine detailSome companies in New York do not require a degree in diesel technology if the candidate already holds several years of work experience in this field, but with the continual advancement of diesel technology, this is becoming less common among employers throughout the country.

On-the-job training can take up to three years to complete, requiring diesel mechanics to prove their competency in diesel maintenance before reaching professional status.

Individuals who wish to start out with a higher salary and increase their chances of getting hired on by an upstanding company need to pursue an associate or bachelor’s degree in diesel technology.

Students can choose between a variety of vocational, community, or technical colleges in New York that are accredited through a highly recognized governing organization, such as the National Automotive Technicians Education Foundation (NATEF).

This will prepare students for gaining their certificate upon graduation, helping them earn a higher paying salary in a specialized sector of the industry.

A diesel mechanic certificate demonstrates your proficiency and skill level specific to diesel engines. The National Institute for Automotive Service Excellence (ASE) offers a wide range of certification tests for diesel mechanics and technicians in relevant disciplines.
  • T1: Gasoline Engines.
  • T2: Diesel Engines.
  • T3: Drive Train.
  • T4: Brakes.
  • T5: Suspension & Steering.
  • T6: Electrical/Electronic Systems.
  • T7: Heating, Ventilation & Air Conditioning (HVAC)
  • T8: Preventative Maintenance Inspection.

Watch this BEFORE you enroll at an auto/diesel school!

Why get a diesel mechanic certification

Having a diesel mechanic certification improves your chances of being hired by an employer or a customer, and it can increase your potential earnings. It is an excellent way to show your skills and experience in diesel engines to employers who want candidates with a thorough understanding of the vehicles they work on. Employers also often give higher salaries to candidates who require less training or supervision, and certification often pre-qualifies your abilities. These certifications can help you advance in your career.

Self-employed mechanics can also benefit from a diesel mechanic certification. Customers want to find a knowledgeable diesel mechanic with the proper training for their vehicle. Not only does a certification prove that you have the skills to repair their vehicle properly, but customers can also find your name in a registry of certified mechanics in their area. With certification and a solid reputation for quality work, many customers may pay a higher rate for your services.

What is a diesel mechanic certification?

A diesel mechanic certification is a document proving that a person has the training and knowledge to work in their area of certification. For example, someone certified in school bus diesel engines has taken a test showing their understanding of how a school bus diesel engine functions, and they comprehend how to complete repairs to this type of diesel engine. This certificate can be provided as proof to employers and customers for documentation and to instill confidence in its bearer.

Certifications range from a basic certification in one area or type of vehicle to a master certification, which often involves a broad base of knowledge across a certain type of vehicle, such as transit buses. Mechanics also maintain their certifications by recertifying after a certain number of years, which ensures the current status of their knowledge and skills.

Types of diesel mechanic certification

The ideal certification for you depends on which types of vehicles you work with regularly. Some common certifications include:

ASE certification covers automotive repairs for a range of vehicles, and the institute offers several levels of certification. The first level of certification is for a specific type of diesel engines or electrical/electronic systems. Certification requires that you pass the test in the area of your choice, such as electrical systems for a medium heavy truck. Many also require some experience working as a mechanic, and the length of required experience depends on the area. You can receive certification in the following diesel engine areas:

If you want to study electrical/electronic systems for various vehicles, consider the following certifications as well:

The next level of certification, L2 electronic diesel engine diagnosis specialist, involves completing one test from both the diesel engine and electrical/electronic systems areas. In addition, ASE offers a master technician certification to anyone who passes every test in a vehicle category, for example, technicians certified in T1 through T8 are master medium-heavy truck technicians. Certification lasts five years, so anyone who wants to maintain their certification must complete a recertification test after five years.

If you prefer to work with marine vehicles, such as boats, then consider an ABYC certification in one of the following areas:

Anyone who passes three or more of these tests receives a master technician certification. These certifications last five years and anyone who wishes to renew their certification must complete 10 hours of continuing education and pass a recertification test.

Heavy equipment certification

Tips for earning a diesel mechanic certification

If you want to achieve diesel mechanic certification, consider the following tips to help you pass the tests in your area:

Please note that none of the companies mentioned in this article are affiliated with Indeed.


How do I become a diesel mechanic in NY?

What Are the Top Diesel Mechanic Certifications to Have?
  • ASE Certifications for Diesel Mechanics. ASE tests are a shorthand way of describing the top certifications given by the National Institute for Automotive Service Excellence. …
  • Ahoy, ABYC. …
  • Heavy Equipment Certifications. …
  • Why Certify? …
  • Become a Certified Diesel Mechanic.

How do I become a diesel mechanic in Michigan?

Associate of Science in Diesel Technology

Students should expect to complete two to three years of full-time courses in order to graduate with an associate’s degree, and certified instructors will teach students the proper maintenance and repair techniques for diesel-powered vehicles.

Is being a diesel mechanic physically demanding?

What Type of Training is Required for Diesel Mechanics? Michigan does not require licensure of diesel mechanics, although general employment regulations ensure that most businesses will only consider individuals who are 18 years or older and who have received a high school diploma or graduate equivalency degree (GED).

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