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Student surveying large diesel engine.

Join our Diesel Mechanic program where you can gain the entry level skills required to start a career in automotive repair and maintenance.

Diesel technicians work in a variety of settings overseeing and improving the performance of modern diesel engines and commercial vehicles, as well as sophisticated heavy equipment systems with electronic functions and advanced computer controls. Employed by major trucking companies, delivery enterprises, municipal transit systems and other transportation organizations, diesel technicians serve their customers with job titles such Diesel Service Technician, Diesel Technician and Diesel Mechanic.

The program is delivered through an intensive, hands-on lab approach allowing you to concentrate on practical skills, education and execution alongside supplemental online curriculum. You will become proficient in preventative maintenance and inspections by performing procedures in electrical, brakes, lubrication, hub seals, HVAC, after-treatment systems and diagnostics equipment. Our program covers the following key areas and topics:

  • Heavy Duty Automotive Foundations and Safety
  • Electrical and Electronic Systems
  • On-Board Diagnostics
  • Tire Suspension and Brakes
  • Heating, Ventilation and Air-Conditioning
  • Exhaust Aftertreatment Systems
  • Preventative Maintenance and Inspection
  • Employment Preparation

What courses will I take?

Our program consists of three noncredit courses, and you must register for each course together:

  • OCA-591 Diesel Technician I
  • OCA-592 Diesel Technician II
  • OPA-354 Workforce Success Skills

What credentials can I earn?

After completing this program, you will be eligible to sit for the Automotive Service Excellence (ASE) Auto Maintenance and Light Repair (G1) exam. A certification will be issued once you complete and submit the one-year work experience requirement.

In addition to helping you qualify for entry-level diesel mechanic positions, this program is ideal if you're interested in pursuing subsequent advanced training, and eventually industry certification, in specific areas or manufactures.


What will it cost?

The total program cost for Anne Arundel County residents is $3,975. This cost includes instruction, textbooks and lab supplies.


What is the job outlook?

Maryland’s demand for Diesel Engine Specialist workers is projected to grow 3.5% between 2020 and 2024. The average salary for current job holders is $52,700 a year.

Source: Emsi 2020.1