Top 11 Diesel Mechanic Certifications

Certifications are important for diesel mechanics in the job market because they prove that they have the knowledge, skills, and abilities to effectively work on diesel engines. Having certifications shows employers that a diesel mechanic has invested time and money into their education and training and is committed to staying up-to-date with the latest technologies. Certifications also demonstrate a level of expertise that can help them stand out from other applicants. Ultimately, certifications provide employers with assurance that a diesel mechanic is capable of performing maintenance, diagnosis, and repair of diesel engines safely and correctly.

The purpose of this article is to review some of the top certifications for Diesel Mechanics and explain how they can contribute to a diesel mechanic's career by providing industry-recognized credentials and increasing their knowledge and skills.

What are Diesel Mechanic Certifications?

Diesel mechanic certification is a credential that demonstrates competency in the field of diesel mechanics. It is typically awarded by professional organizations or educational institutions after an individual has successfully completed a program of study or training in diesel technology. Diesel mechanic certification can help individuals demonstrate their knowledge and skills to potential employers, as well as make them more competitive for job opportunities. Having a certification can also make it easier for mechanics to stay up-to-date on the latest technology and advancements in the field, since many certifications require periodic recertification. Additionally, having a valid certification can help increase credibility with customers and provide reassurance that work will be performed correctly and efficiently.

Pro Tip: Invest in a diesel mechanic certification program that offers hands-on training and job placement assistance. This will ensure that you are up-to-date on the latest techniques and technologies, as well as provide you with valuable work experience and networking opportunities.

Related: What does a Diesel Mechanic do?

Top 11 Diesel Mechanic Certifications

Here’s our list of the best certifications available to Diesel Mechanics today.

1. Automotive Service Excellence (ASE) Certification

Automotive Service Excellence (ASE) Certification is a professional credential that recognizes the knowledge and skill of automotive technicians. It is a voluntary certification program administered by the National Institute for Automotive Service Excellence (ASE). ASE certifications are recognized throughout the industry as a mark of excellence in automotive service and repair.

To obtain ASE certification, an individual must pass one or more of the 40+ ASE tests covering all aspects of automotive service and repair. The tests are offered twice a year at hundreds of test centers throughout the United States and Canada. Each test typically takes two hours to complete, but some may take longer depending on the subject matter.

The cost to take an ASE test varies depending on the number of tests taken and whether or not you have already purchased an ASE study guide. Generally, it costs between $30-$60 per test plus any applicable taxes.

In order to become certified, individuals must pass at least one ASE test within five years. After passing a test, individuals receive an ASE certificate with their name printed on it along with their specialty area(s) and expiration date. Individuals must renew their certification every five years by taking additional tests or completing continuing education courses in order to maintain their certification status.

2. Automotive Engine Repair Certification

Automotive Engine Repair Certification is a certification program that provides training and certification for those interested in becoming an automotive engine repair technician. The program covers topics such as engine diagnosis, repair and maintenance, electrical systems, fuel systems, and other related topics.

The length of the Automotive Engine Repair Certification program varies depending on the provider. Generally speaking, it takes anywhere from six months to two years to complete the program. To get certified, you must complete all required courses and pass an exam administered by a recognized certifying body.

To get certified in Automotive Engine Repair, you must first find a course provider that offers the certification program. You can usually find these providers online or through your local auto parts store or mechanic shop. Once you have found a course provider, you will need to register for the class and pay any applicable fees. After registering for the class, you will be required to attend all classes and complete all assignments in order to receive your certification.

The cost of Automotive Engine Repair Certification varies depending on the provider but typically ranges from $500-$2,000 USD depending on the length of the course and number of classes taken.

3. Automotive Electrical/Electronic Systems Certification

Automotive Electrical/Electronic Systems Certification is a certification program that verifies the knowledge and skills of automotive technicians in the areas of electrical and electronic systems. This certification is offered by the National Institute for Automotive Service Excellence (ASE). It requires passing one or more tests to demonstrate competency in this area.

The ASE Automotive Electrical/Electronic Systems Certification test takes approximately two hours to complete, with a total of 40 questions. The cost of the test is $60, and it can be taken at any authorized ASE testing center.

In order to receive the certification, you must pass all sections of the exam with a score of 70% or higher. You will also need to have at least two years of work experience in automotive electrical/electronic systems repair before taking the exam. Once you have passed all sections, you will be awarded an ASE Automotive Electrical/Electronic Systems Certification card.

The cost for taking the ASE Automotive Electrical/Electronic Systems Certification test is $60, but there may be additional fees associated with taking the exam depending on your location and testing center. Additionally, if you fail any section of the exam, you will need to retake it at an additional cost.

4. Automotive Brake Systems Certification

Automotive Brake Systems Certification is a certification program that provides automotive technicians with the knowledge and skills necessary to properly diagnose, repair, and maintain brake systems in cars and light trucks. The certification is offered by the National Institute for Automotive Service Excellence (ASE).

The ASE Brake Systems Certification exam consists of two parts: a written test and a hands-on performance evaluation. The written test covers topics such as brake system theory, diagnosis, repair, maintenance, and safety. The performance evaluation tests the technician's ability to diagnose and repair brake systems.

It typically takes about four hours to complete the ASE Brake Systems Certification exam. To get certified, you must pass both parts of the exam with a score of 70% or higher.

The cost of taking the ASE Brake Systems Certification exam varies depending on where you take it. Generally speaking, it costs around $100-$150 USD to take the exam at an authorized testing center.

5. Automotive Heating and Air Conditioning Systems Certification

Automotive Heating and Air Conditioning Systems Certification is a certification program offered by the National Institute for Automotive Service Excellence (ASE). It is designed to recognize individuals who have demonstrated knowledge, skills, and abilities in the service and repair of automotive heating and air conditioning systems.

The certification process consists of two tests: A4 (Automotive Heating & Air Conditioning) and A5 (Automobile Electrical/Electronic Systems). The exams cover topics such as diagnosis, installation, maintenance, repair, and troubleshooting of automotive HVAC systems. To earn the certification, applicants must pass both tests with a score of 70% or higher.

The cost of the certification varies depending on the testing center you choose. Generally speaking, it will cost between $50 - $90 for both tests. The time it takes to get certified depends on how quickly you can study for the tests. Most people can complete their studies within a few weeks if they dedicate enough time to studying each day.

To get certified, applicants must first register with ASE online or by mail. Once registered, you will receive a confirmation email containing instructions on how to schedule your test(s). After scheduling your test(s), you will need to prepare for them by studying for each topic covered in the exam(s). Once you have passed both exams with a score of 70% or higher, you will receive your official Automotive Heating & Air Conditioning Systems Certification from ASE.

6. Automotive Suspension and Steering Systems Certification

Automotive Suspension and Steering Systems Certification is a certification program that verifies the knowledge and skills of automotive technicians in the area of suspension and steering systems. The certification is administered by the National Institute for Automotive Service Excellence (ASE).

The certification requires a technician to pass an exam that covers topics such as suspension systems, steering systems, wheel alignment, tire diagnosis and repair, power steering systems, and other related topics. The exam consists of 40 multiple-choice questions which must be completed within 90 minutes.

To obtain the certification, you must first register with ASE to take the test. You will then be required to pay a fee of $50 to take the exam. After passing the exam, you will receive your certificate from ASE.

The cost of taking the exam is $50. In addition to this fee, there may be additional costs associated with preparing for the exam such as textbooks or online courses.

7. Automotive Manual Drivetrain and Axles Certification

Automotive Manual Drivetrain and Axles Certification is a certification program offered by the National Institute for Automotive Service Excellence (ASE). This certification is designed to demonstrate the knowledge, skills, and abilities of automotive service technicians who work on manual drivetrains and axles.

To become certified in this area, technicians must pass an ASE-administered test. The test consists of 50 multiple-choice questions that cover topics such as diagnosis and repair of manual drivetrains, axles, transfer cases, differentials, clutches, driveshafts, and other related components.

The exam typically takes two hours to complete. To prepare for the exam, technicians should review their training materials or take an ASE-approved course. The cost of the exam varies depending on where it is taken; however, it usually ranges from $50 to $90.

In order to maintain their certification status, technicians must retake the exam every five years. They may also need to complete additional training courses or attend seminars in order to keep up with new technologies in the field.

8. Automotive Automatic Transmissions/Transaxles Certification

Automotive Automatic Transmissions/Transaxles Certification is a certification program offered by the National Institute for Automotive Service Excellence (ASE). This certification is designed to demonstrate a technician’s knowledge and proficiency in the diagnosis, repair, and service of automatic transmissions and transaxles.

To become certified, technicians must pass an ASE-developed test that covers topics such as transmission removal and installation, electrical systems, hydraulic systems, torque converters, drive axles, and more. The test consists of 50 multiple-choice questions that must be completed within 90 minutes.

To get certified, technicians must first register with ASE and pay the applicable fee. After registering with ASE, technicians can take the exam at any one of hundreds of authorized testing centers located throughout the United States. The fee for taking the exam is $60 per attempt. If a technician passes the exam on their first attempt they will receive their certification within 6-8 weeks.

The cost to become certified varies depending on how many times a technician takes the exam before passing it. If a technician fails to pass the exam on their first attempt they will need to retake it at an additional cost of $60 per attempt until they pass it. Once they have passed the exam they will receive their certification in 6-8 weeks time.

9. Heavy-Duty Trucks Maintenance and Light Repair Certification

Heavy-Duty Trucks Maintenance and Light Repair Certification is a certification that demonstrates an individual's ability to maintain, diagnose, and repair heavy-duty trucks. This certification is important for those who work in the trucking industry, as it shows employers that they have the necessary knowledge and skills to safely and effectively carry out repairs on their vehicles.

The Heavy-Duty Trucks Maintenance and Light Repair Certification is offered through the National Institute for Automotive Service Excellence (ASE). To obtain this certification, individuals must pass a series of tests that cover topics such as engine systems, brakes, electrical systems, suspension components, steering components, drivetrain components, preventive maintenance procedures, and more. The tests are designed to assess an individual's knowledge of these topics as well as their ability to properly diagnose and repair any problems they may encounter.

The cost of obtaining the Heavy-Duty Trucks Maintenance and Light Repair Certification varies depending on the number of tests taken. Generally speaking, each test costs between $50-$70. Additionally, there may be additional fees associated with taking the test such as registration fees or exam preparation materials.

In order to obtain the Heavy-Duty Trucks Maintenance and Light Repair Certification, individuals must first register with ASE by completing an application form online or by mail. Once registered, individuals can then take the tests at any authorized testing center in their area. It typically takes around two weeks to receive results from ASE after taking a test. After all required tests have been passed successfully, individuals will receive their certification from ASE within four weeks of passing their final test.

10. Medium/Heavy Truck Diesel Engines Certification

Medium/Heavy Truck Diesel Engines Certification is a certification program for diesel engine technicians. It is designed to improve the knowledge and proficiency of technicians in the diagnosis, repair, and maintenance of medium/heavy duty diesel engines. The certification is offered by the National Institute for Automotive Service Excellence (ASE).

To obtain this certification, technicians must pass an exam that covers topics such as fuel systems, electrical systems, air management systems, engine performance, and preventive maintenance. The exam consists of 50 multiple-choice questions and takes approximately two hours to complete.

In order to take the exam, applicants must first register with ASE and pay a fee of $70. Once registered, applicants can then schedule an appointment at one of ASE’s testing centers located throughout the United States. After passing the exam, technicians will receive their Medium/Heavy Truck Diesel Engines Certification card in the mail within 6-8 weeks.

The cost of taking the exam is $70 plus any applicable taxes or fees associated with scheduling an appointment at a testing center. In addition to this fee, there may be additional costs associated with studying for and preparing for the exam such as books or online courses.

11. Medium/Heavy Truck Steering, Suspension, Brakes, and Electrical/Electronic Systems Certifications

Medium/Heavy Truck Steering, Suspension, Brakes, and Electrical/Electronic Systems Certifications are certifications that demonstrate a technician’s knowledge and proficiency in the maintenance and repair of medium and heavy-duty trucks. This certification is administered by the National Institute for Automotive Service Excellence (ASE). It requires technicians to pass a series of tests that cover all aspects of truck maintenance and repair.

To get certified, technicians must first complete an ASE-approved training program. The training programs vary in length depending on the type of certification sought; however, most require between 40 and 80 hours of instruction. After completing the program, technicians must pass a series of tests covering all aspects of truck maintenance and repair. The tests are offered at various times throughout the year at designated testing centers.

The cost to become certified varies depending on the type of certification sought. Generally speaking, it can range from $50 to $200 per test. In addition to the cost of taking the test itself, there may be additional fees associated with registering for the test or taking a preparatory course prior to taking it.

Once certified, technicians must renew their certification every five years by retaking any exams they have not passed since their initial certification or by completing continuing education courses related to truck maintenance and repair. Renewal costs may vary depending on which exams need to be taken or how many continuing education credits need to be earned.

Do You Really Need a Diesel Mechanic Certificate?

Having a diesel mechanic certificate is beneficial for those seeking a career in the diesel industry. It demonstrates that you have the necessary knowledge and experience to work on diesel engines and other related systems. The certificate also provides employers with evidence that you have met specific standards of knowledge and skill.

For those who are serious about becoming a diesel mechanic, getting certified is an important step in building a successful career. This certification can open up opportunities for higher-paying jobs, as employers often prefer to hire certified technicians who demonstrate a commitment to their profession. With proper training, certification can also help ensure safety on the job and provide reassurance that your work meets industry standards.

Although it’s not required to become a diesel mechanic, having a certificate of completion from an accredited program or institution shows potential employers that you have the necessary skills and qualifications to do the job effectively. It also serves as proof of your commitment to excellence, which can be appealing when competing for higher-level positions. Additionally, certifications may allow you access to additional resources such as continuing education programs or industry associations.

Ultimately, whether or not you need a diesel mechanic certificate depends on where you want your career to go and what level of success you hope to achieve. If you’re looking for more than just entry-level positions, then obtaining certification could be beneficial in helping you reach your professional goals.

Related: Diesel Mechanic Resume Examples

FAQs About Diesel Mechanic Certifications

1. What are the requirements to become a diesel mechanic?

Answer: Generally, diesel mechanics need to have a high school diploma or equivalent, and may need to complete a certificate or associate degree program in diesel technology. Depending on the employer, some employers may prefer candidates who have completed apprenticeships or have prior experience working with diesel engines.

2. What certifications do I need to become a diesel mechanic?

Answer: To become a certified Diesel Mechanic, you must complete an accredited program in diesel technology and pass several certification tests administered by the National Institute for Automotive Service Excellence (ASE). The ASE certifies technicians in eight different areas of diesel engine repair and maintenance.

3. How long does it take to get certified as a diesel mechanic?

Answer: It usually takes between one and two years to complete the necessary courses and obtain certification as a Diesel Mechanic. However, this can vary depending on the type of program you choose.

4. Is there an age requirement for becoming a diesel mechanic?

Answer: No, there is no age requirement for becoming a Diesel Mechanic; however, most employers prefer applicants who are at least 18 years old due to the physical demands of the job.

5. What is the salary range for certified diesel mechanics?

Answer: The salary range for certified Diesel Mechanics varies depending on location, experience level, and other factors; however, according to PayScale, the average salary for Diesel Mechanics is $20 - $30 per hour with experienced professionals earning up to $50 per hour or more.