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Introducing: Penn Foster’s Online Diesel Mechanic Training

While Ashworth College is no longer accepting enrollments in the Diesel Mechanic Program, we’re excited to introduce you to our partner school, Penn Foster.

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Penn Foster’s affordable online Diesel Mechanic/Heavy Truck Maintenance Career Diploma is designed with job readiness in mind so you can take the first steps toward building skills you’ll use in your everyday career.


Take the Next Steps Toward a Job as a Diesel Mechanic Online

Penn Foster’s online Diesel Mechanic and Heavy Truck Maintenance Program covers basic diesel engine operations, troubleshooting and repair, and more. The program helps you to prepare for the National Institute for Automotive Service Excellence (ASE) Certification Medium-Heavy Truck Tests. You can complete this program in as little as seven months, training online — at home or on the go — at a pace that’s right for you.

Why Penn Foster?

Our partner school, Penn Foster, offers online diplomas, degrees, and training programs that are designed to help you build fundamental skills and prepare for in-demand jobs – all within your budget! With flexible tuition payment plans and career-focused courses, you can reach your goals on your terms.


This program is nationally accredited by the Distance Education Accrediting Commission (DEAC).


You’ll have access to digital resources, an online community, and expert instructors.


We offer a variety of payment plan options to fit your budget.

What you get with Penn Foster’s Online Auto Repair Training

  • Engaging, mobile-friendly courses
  • Interactive study guides, how-to videos, and animations
  • Access to classes 24/7 through your Student Portal
  • Student discount on tools from Snap-On tools
  • Live support from expert instructors and dedicated staff
  • An active online community of fellow students, staff, and grads

Online Diesel Mechanic Training Curriculum

Through Penn Foster’s online Diesel Mechanic Training Program, you’ll cover topics that are designed to help you prepare to take the first steps toward a job in the field and sit for the ASE Medium-Heavy Truck certification exam. Your classes include:

  • Diesel Engine Fundamentals
  • Truck Electronics and Engine Controls
  • Truck and Trailer Maintenance
  • Drivelines and Transmissions

Learn More About the Penn Foster Experience

Just like Ashworth College, at Penn Foster we believe education should be affordable and built to help you reach your career goals, prepare for in-demand jobs, and work around your schedule. Learn more about Penn Foster and how our programs work from students and grads who’ve been where you are.

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" enn Foster has not only helped me graduate but has expanded my knowledge in a way that wasn't stressful or complex. I like Penn Foster because it's very simple to use and easy to get results."

Rylee K.
Penn Foster Graduate

Frequently asked questions

You may be taking your first steps into higher education. Or you may be considering online study for the first time. Whatever your situation, we're here to guide you through the process and answer any questions you have.

Penn Foster’s Diesel Mechanic Training teaches you about vehicle electrical systems, the engine and its working parts, and more. Since diesel engines are in hundreds of thousands of buses, large trucks, boats, bulldozers, dump trucks, cranes, and more, people with this kind of specialized repair and maintenance knowledge should be in great demand.

Penn Foster’s Diesel Mechanic Online Training is self-paced, meaning you can learn and study around your schedule. With that in mind, most students can complete the program in about 7-12 months.

The Diesel Mechanic/Heavy Truck Maintenance Program can help you learn skills that are essential to helping you take the first steps toward becoming a diesel mechanic in a service shop, dealership, or trucking business. Throughout your program, you’ll have access to resources and support from instructors who are industry experts. Even better, Penn Foster offers affordable tuition, with most programs offering flexible payment plan options so you can make education work for your budget.

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Learn more about how Penn Foster works, the benefits of being a Penn Foster student, and how to be successful in online school.

State requirements

A career in this field may require you to meet certain licensing, training, and other requirements that can vary by vocation and state. You should check with your state, local government, and/or licensing board to find out which requirements may be applicable in your state. Click here for contact information on state licensing/regulatory boards and certain professional licensing information.

Advance your career in Penn Foster’s online API Program Name program. Call 1-800-305-2194