Skip to content
Alamo Colleges DistrictCareer Explorer

Bus and Truck Mechanics and Diesel Engine Specialists

Part of Transportation, Distribution & Logistics, in the Facility and Mobile Equipment Maintenance pathway.

Job zone 3: medium preparationO*NET 49-3031.00

What the work is

Diagnose, adjust, repair, or overhaul buses and trucks, or maintain and repair any type of diesel engines. Includes mechanics working primarily with automobile or marine diesel engines.

On a typical day

  • Use handtools, such as screwdrivers, pliers, wrenches, pressure gauges, or precision instruments, as well as power tools, such as pneumatic wrenches, lathes, welding equipment, or jacks and hoists.
  • Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
  • Perform routine maintenance such as changing oil, checking batteries, and lubricating equipment and machinery.
  • Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
  • Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
  • Test drive trucks and buses to diagnose malfunctions or to ensure that they are working properly.

What it pays

$58,620
Median pay per year, San Antonio-New Braunfels, TX metro
New workers start near $43,360
Experienced workers reach $80,430
  1. $43k10th
  2. $47k25th
  3. $59kMedian
  4. $71k75th
  5. $80k90th
Wage percentiles: 10th $43,360, 25th $47,420, Median $58,620, 75th $70,650, 90th $80,430

About 2,160 people do this job in the San Antonio area.

Job outlook

Alamo region (Bexar and 12 surrounding counties), Texas Workforce Commission projection 2024 to 2034. U.S. figures from the BLS for comparison.

+12.9%

employment change in the Alamo region, 2,464 to 2,781 jobs · U.S. +2%

240

openings a year in the Alamo region, from growth and people leaving · U.S. 26,500

2,464

employed in the Alamo region in 2024 · U.S. 319,900

Typical entry education: High school diploma or equivalent · Training: Long-term on-the-job training

Skills this career uses

The skills O*NET rates most important for the job, with how much of each the work needs on a 1 to 7 scale.

  1. Repairing3.9
  2. Troubleshooting3.8
  3. Operations Monitoring3.3
  4. Equipment Maintenance3.4
  5. Critical Thinking3.4
  6. Quality Control Analysis3.3
  7. Speaking3.0
  8. Equipment Selection3.0

Education people in this job have

Share of workers by highest education, from O*NET surveys. It shows what others did, not what you must do.

  1. High school or less38%
  2. Certificate39%
  3. Some college22%
  4. Associate degree1%

Job zone 3, medium preparation: Training, an associate degree, or a few years of related experience.

Alamo programs that lead here

  • St. Philip's
  1. Diesel Technology

    Degree · Certificate · Advanced Manufacturing & Logistics

Apply to Alamo Colleges

Does this fit you?

Six questions rank every career here by how closely its interest profile follows yours.

Check my interests
  1. Mobile Heavy Equipment Mechanics, Except Engines

    Zone 31 Alamo program Bright outlook

    $62kSan Antonio median
  2. $47kSan Antonio median
  3. $53kTexas median
  4. $61kSan Antonio median
  5. $78kSan Antonio median
  6. $56kSan Antonio median
  7. $60kSan Antonio median