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Skilled Trades

Diesel Mechanic Resume Examples & Templates

Compare 4 Diesel Mechanic resume examples from Apprentice Diesel Mechanic to Shop Foreman, with salary benchmarks ($38,000 - $118,000) and the exact skills hiring managers screen for.

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Apprentice Diesel Mechanic$38,000 - $52,000

Professional Apprentice Diesel Mechanic resume example. Get hired faster with our ATS-optimized template.

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Diesel Mechanic$50,000 - $72,000

Professional Diesel Mechanic resume example. Get hired faster with our ATS-optimized template.

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Senior Diesel Mechanic$68,000 - $92,000

Professional Senior Diesel Mechanic resume example. Get hired faster with our ATS-optimized template.

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Shop Foreman$82,000 - $118,000

Professional Shop Foreman resume example. Get hired faster with our ATS-optimized template.

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Why This Resume Works

Open every bullet with a hands-on verb

Performed, Assisted, Inspected, Rebuilt. Even as an apprentice, lead with the action you took so a shop sees a worker, not an observer.

Numbers turn training into proof

14-16 trucks weekly, 120+ fault codes, 98% PM compliance. Recruiters trust counts and percentages far more than 'helped out in the shop'.

Show the diagnostic, not just the part

Naming the engines, the scan tools, and the exact failed component proves you can actually trace a fault, not only swap parts.

Compliance language signals you know the rules

DOT inspections and ASE credentials are the words a service manager scans for. Tie your work to them early.

Show you took ownership inside the team

Working under journeymen and handing off clean fault logs proves you can be trusted with real bay work, not just sweeping up.

Switch between levels for specific recommendations

Key Skills

  • Preventive maintenance basics
  • Brake system service
  • Hand and power tools
  • Shop safety (lockout/tagout, PPE)
  • Fluid and filter service
  • Basic engine diagnostics
  • DOT inspection support
  • Electrical systems fundamentals
  • OEM scan tool exposure
  • CDL permit (in progress)
  • Engine diagnostics
  • Brake systems (air and hydraulic)
  • Electrical systems troubleshooting
  • Preventive maintenance
  • DOT inspections
  • Hydraulics
  • Aftertreatment and DPF service
  • Welding (MIG and stick)
  • ASE certification (T-series)
  • CDL Class A (a plus)
  • Advanced engine diagnostics
  • Heavy-line engine rebuilds
  • Electrical and electronic troubleshooting
  • Aftertreatment systems
  • Warranty and OEM repair
  • Apprentice mentoring
  • Welding and fabrication
  • Fleet maintenance scheduling
  • Telematics and fault-code analysis
  • Team leadership
  • Fleet maintenance management
  • Shop scheduling and workflow
  • DOT compliance
  • Preventive maintenance programs
  • Parts and vendor management
  • Fleet KPI reporting (uptime, cost per mile)
  • Warranty recovery
  • Budget management
  • Safety program management (OSHA)

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Salary Ranges (US)

Apprentice Diesel Mechanic
$38,000 - $52,000
Diesel Mechanic
$50,000 - $72,000
Senior Diesel Mechanic
$68,000 - $92,000
Shop Foreman
$82,000 - $118,000

Frequently Asked Questions

Treat trade-school labs, internships, and personal repairs as real work. List supervised hours on preventive maintenance and brake systems with numbers, name the systems and tools you have used, and put your ASE certification path near the top. A clean driving record and a CDL in progress are worth listing because they show you can road-test trucks soon.

Not always to start, but ASE certification quickly becomes the difference between a parts-changer and a tech shops fight to keep. Most pay raises and senior roles assume the Medium/Heavy Truck (T-series) tests. If you are not certified yet, list the exams you have passed and the ones you have scheduled so a shop sees momentum.

Put it in your header or certifications line with the class, for example 'CDL Class A'. A CDL is a plus because it lets you road-test repairs and move units yourself. If you only hold a permit or it is in progress, say so plainly; it still signals value to a fleet.

Group them by system so the ATS and the service writer both find them: engine diagnostics, brake systems, electrical systems, hydraulics, aftertreatment, and preventive maintenance. Add the OEM scan tools and platforms you run, plus welding if you have it. Skip vague phrases like 'mechanically inclined'.

One page for apprentice and mid-level techs, up to two pages for senior mechanics and shop foremen with leadership and fleet maintenance results. Lead with metrics, cut old unrelated jobs, and never pad. A tight one-page resume with comeback rates and uptime numbers beats a two-page list of duties.

Convert lab and shop hours into achievement bullets with counts, such as supervised PM services and brake jobs. Name every system and tool you have touched, list your ASE certification timeline, and add safety training like OSHA 10. Open availability and a CDL permit in progress widen the jobs you qualify for.

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