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Diesel Mechanic

Custom Assembly, Inc.
Madison, AL Full Time
POSTED ON 12/15/2025 CLOSED ON 1/9/2026

What are the responsibilities and job description for the Diesel Mechanic position at Custom Assembly, Inc.?

MCK Trucking

1297 County Line Road

Madison, AL 35756

We are currently looking for determined candidates to fill either an entry level or certified diesel/trailer technician position in our maintenance shop. The position is responsible for maintenance and repairs of tractors and trailers. This is a genuine opportunity for an aspiring or experienced technician to hone their skills in a fleet that is unique to industry.

Schedule

  • Monday-Friday
  • 1st Shift

Job Duties And Responsibilities

Tractors

  • Conduct routine maintenance and inspections on diesel engines, including oil changes, filter replacements, and fluid level checks
  • Diagnosing mechanical and electrical issues using diagnostic tools and computer software
  • Carry out scheduled and unscheduled repairs, ensuring minimal downtime for our fleet
  • Using MCK's tools and technologies to log, research and complete repairs, including basic vehicle diagnostics
  • Keep accurate records of all maintenance and repair work performed
  • Collaborate with other members of the maintenance team to prioritize and complete assigned tasks in a timely manner
  • Comply with all safety protocols and procedures to maintain a safe working environment
  • Keeping your work area clean and safe
  • Learning new skills through MCK's technician training or other approved courses
  • Working on other projects and tasks as assigned by supervisor

Trailers

  • Experience with fabrication and building specialized platforms for cargo management
  • Welding and fabrication certifications preferred
  • Inspecting, troubleshooting, and repairing trailer bodies, systems, and components.
  • Performing preventative maintenance measures trailers.
  • Maintaining hubs and axles and adjusting or replacing them when required.
  • Inspecting, servicing, and replacing trailer parts, including tires.
  • Checking and repairing the brake, electrical, and hydraulic systems.
  • Testing all systems and equipment for performance issues.
  • Ensuring that trailers meet the U.S. Department of Transportation's road safety requirements.
  • Compiling inspection reports, documenting repairs, and reporting all findings to management.

Other Qualifications

  • Reading and writing
  • Technical training in related fields
  • Ability to learn basic mechanical tasks
  • Expertise in welding preferred but not required
  • ASE certification preferred but not required
  • Ability to learn basic mechanical tasks
  • CDL-A preferred but not required

Salary

  • Based on Experience and Qualifications
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Salary.com Estimation for Diesel Mechanic in Madison, AL
$53,461 to $67,139
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