Diesel Mechanics

Diesel Mechanic Students Work on Engine

Diesel mechanics repair and maintain diesel engines that power trucks, buses, ships, construction and roadbuilding equipment, farm equipment, and some automobiles. They may also maintain and repair nonengine components, such as brakes, electrical systems, and heating and air conditioning. Approximately 251,750 diesel mechanics work in the United States.

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Quick Facts
Alternate Title(s) None
Duties Maintain and repair diesel engineers; service non-engine vehicle and heavy equipment components including brake systems, electronics, transmissions, and suspensions; rebuild engines; use tools and equipment necessary for the job; keep and update service records and engine repair histories
Salary Range $25,000 to $75,000
Work Environment Primarily Indoors
Best Geographical Location(s) Nationwide, with highest levels in California, New York, Ohio, Pennsylvania, and Texas
Minimum Education Level
  • High School Diploma
  • Some Postsecondary Training
School Subjects
  • Computer Science
  • Mathematics
  • Technical/Shop
Experience Minimum two years with long-term on-the-job training
Personality Traits
  • Conventional
  • Problem-Solving
  • Technical
  • Math
  • Mechanical/Manual Dexterity
  • Organizational
Certification or Licensing Recommended
Special Requirements Class A driver's license required
Employment Prospects Good
Advancement Prospects Good
Outlook Faster than the Average
Career Ladder
  • Repair Shop Owner or Teacher
  • Repair Shop Supervisor
  • Diesel Mechanic
  • Mechanic Apprentice/Intern