Trades

Diesel Mechanic Resume Example

Diesel mechanics service, diagnose, and repair diesel-powered trucks, buses, and heavy equipment. They work on engines, transmissions, hydraulics, and electrical systems to keep fleets operational.

Growth: 5% (As fast as average)

Salary: $48,000 - $78,000

Top Skills for Diesel Mechanic Resumes

Hard Skills

Diesel Engine Repair
Hydraulic Systems
Heavy Truck Diagnostics
DOT Inspections
Preventive Maintenance
Transmission & Drivetrain
Air Brake Systems
Electrical Troubleshooting
Welding (Basic)
Fleet Management Software

Soft Skills

Problem-solving
Physical Stamina
Attention to Detail
Time Management
Communication

Diesel Mechanic Resume Summary Examples

Entry Level

“Diesel Technician with 2 years of experience servicing Class 6-8 trucks and trailers. ASE T-Series certified in diesel engines and brakes. Graduate of diesel technology program with strong diagnostic skills. Eager to grow with a fleet maintenance operation.”

Mid Level (3-5 years)

“Diesel Mechanic with 7+ years servicing heavy trucks, buses, and construction equipment. Hold 4 ASE T-Series certifications and CDL Class A. Diagnose and repair complex engine, transmission, and aftertreatment issues. Maintain fleet uptime of 95% across 80 vehicles.”

Senior Level (7+ years)

“Master Diesel Technician and Shop Supervisor with 15+ years managing fleet maintenance for 200+ vehicles. Lead team of 8 mechanics achieving 97% fleet uptime. Expert in Cummins, Detroit, and Paccar engine platforms. Reduced repair costs 20% through predictive maintenance programs.”

Sample Work Experience

Diesel Technician

Jul 2019 - Present

Trucking Fleet Services

•Diagnose and repair Class 8 tractors and trailers including Freightliner, Kenworth, and Peterbilt
•Perform DOT annual inspections and preventive maintenance on fleet of 100+ vehicles
•Troubleshoot Cummins, Detroit, and Paccar engine platforms including aftertreatment systems
•Maintain 96% fleet uptime contributing to $2M reduction in annual downtime costs

Common Diesel Mechanic Resume Mistakes

Mistake: Not listing ASE T-Series certifications

Fix: Include: ASE T1-T8, CDL, and manufacturer training (Cummins, Caterpillar, etc.)

Mistake: Generic descriptions like "fixed trucks"

Fix: Be specific: "Diagnosed and repaired Cummins ISX aftertreatment system issues"

Mistake: Omitting fleet size and uptime metrics

Fix: Quantify: "Maintained 97% uptime for fleet of 120 Class 8 tractors"

Mistake: Not specifying equipment types

Fix: List: Class 6-8 trucks, trailers, buses, construction equipment, or generators

ATS Keywords for Diesel Mechanic Resumes

dieselheavy truckfleet maintenanceengine repairDOThydraulicsdiagnostics

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