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Prepares students for jobs as diesel mechanics or service technicians in a variety of settings including automobile, truck, and bus servicing, industrial or government fleet servicing, manufacturers, and repair shops or service stations. 

Covers fundamental topics such as basic diesel engine operations, troubleshooting, and repair. 

Students enrolled in the program receive a discount for Snap-on and Matco tools.

Prepares students to sit for the ASE Medium-Heavy Truck Certification tests. The ASE certification is a respected industry certification that can strengthen students' resumes as they explore career opportunities.

Our online programs are flexible enough for you to finish them at a pace that works for you, based on how much time you can dedicate to your coursework each week.

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If you're someone who has always loved taking things apart and putting them back together again, The Zeta School's Diesel Mechanic Certification Program can help you prepare for a career as a diesel mechanic or diesel service technician. Through flexible, online courses, you can build your industry knowledge and skills while preparing for the National Institute for Automotive Service Excellence (ASE) Certification Medium-Heavy Truck tests.

Why Us?

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Self Paced

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Pre-Hire Opportunities

What You Will Learn

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How to recognize and describe the basic operation and repair of heavy-duty truck steering and suspension systems, along with service and repair of vehicle wheels and tires.


How to recognize and repair the components of heavy truck HVAC systems.


How to identify the various parts and maintenance methods associated with air-brake and anti-lock brake systems.


How to prepare for the ASE Medium-Heavy Truck Certification exam.

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What You Will Receive

For hands on training you will be sent

  • Oculus VR goggles

  • Multimeter

  • Digital Caliper

  • Measuring tools



24/7 Phone, Email & Chat Support

100% US Based Instructors

One on One Tutoring Sessions

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Have Questions?

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Diesel Mechanic Training

In our Diesel Mechanic Training, you'll learn the skills and develop the knowledge to take the first steps toward a new career as a diesel mechanic or service technician. Your online courses include:


  • Diesel Engine Fundamentals

  • Truck Electronics and Engine Controls

  • Truck and Trailer Maintenance

  • Drivelines and Transmissions

  • 28 courses

  • 35 Exams

Estimated completion time:

  • Fast track = 1 months

  • Average time = 3 months

With the Zeta School, you can learn at whatever pace works best for you. Some learners will be more comfortable moving faster, and dedicating more time, and the fast track estimate will apply to them. The average track will apply to most learners who can dedicate a few hours per week to completing their coursework. 

Diesel Mechanic Training

Take the first steps toward a new career with our online Diesel Mechanic Certification Program. Simply choose from one of our low-cost customized payment plans and get started today!


Pay In Full



Two Payments of



$600 Down

$600 + $99

Our Proven Diesel Mechanic Learning Model

Empowering students to reach their professional goals

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  • Start anytime

  • No exam due dates

  • Self-paced


  • Digital study guides

  • Self-check quizzes

  • Simulations and videos

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  • 24/7 access to online resources

  • Online student community

  • Dedicated Learner Center


  • Expert faculty

  • Dedicated student services

  • Robust learning resources

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Apply Now

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