TruckCentersInc
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Heavy-Duty Diesel Mechanic

Foristell, MO, US On-site Full-time Posted October 22, 2026
USD 27–40 / hour
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Company Description

For over 50 years, three generations have led Truck Centers, Inc. from a single store dealership into our current network of ten, full-service dealerships and two auxiliary locations proudly representing Freightliner and Western Star trucks in Illinois, Indiana, and Missouri. Our team has remained dedicated to delivering exceptional customer service in an environment that fosters collaboration, innovation, and a communal spirit of giving back. To learn more about us, visit truckcentersinc.com.

Job Description

Truck Centers, Inc. is continually growing, and that means we have an ongoing need for Service Technicians and Certified Diesel Mechanics to join our team. As a Diesel Mechanic, you are a vital part of our Service department and essential to getting our customers back on the road.

This position will be 1st Shift, 7am-3:30pm, Monday-Friday with a Saturday rotation.

WHAT YOU'LL DO:

  • Perform consistent, high-quality work according to OEM, warranty, and dealership standards.
  • Read repair orders, observe and listen to vehicle operation, obtain diagnostics information, identify root cause malfunctions, plan work procedures, and perform necessary repairs on a vehicle as authorized.
  • Perform general and major repair of all truck systems including, engine, transmission, suspension, brakes, HVAC, electronics, and more.
  • Write thorough, organized documentation of diagnostic findings, repair status, and work performed using Service Notes to aid customer communication and warranty processing.
  • Communicate with Parts department to obtain and verify necessary parts as well as Shop Foreman and Service Administration team regarding status updates or requests.
  • Perform quality checks of all work performed.
  • Road test vehicles to ensure the repairs performed have resolved the customer's complaint(s).

 

Qualifications

What We're Looking For:

  • Experienced tech with a minimum of 3 years mechanical medium- or heavy-duty truck service experience in a shop setting or military installation
  • Valid Driver's License with ability to meet insurance requirements is required
  • Class B CDL with air brake endorsement preferred; Class A CDL highly preferred
  • Demonstrated mechanical aptitude and commitment to providing quality work
  • Welding and fabrication skills are a plus
  • Must be able to pass a pre-employment background check and drug screen
  • Candidates must have their own tools; TCI provides specialty and OEM-required tooling for on-site, communal use

WHAT WE OFFER:

Pay Range: $26.99 - $40.49 per hour with flat rate pay and yearly performance reviews available.

  • 401(k) with company match
  • Health insurance with 2 plan options to choose from, Vision Insurance, and Dental Insurance
  • Paid time off including paid volunteer time
  • Disability insurance
  • FSA and HSA options
  • Company paid Life and AD&D insurance
  • Maternity leave
  • Employee assistance program
  • Wellness program
  • Company paid uniforms
  • Company paid boot allowance
  • OEM and vendor certification training at no cost through our state-of-the-art Training Center at our Troy & South Bend campuses to maintain your certifications and obtain new ones
  • Tool insurance at no cost
  • Company-supplied specialty tooling

Additional Information

Truck Centers, Inc. is an equal opportunity employer (EOE).  All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, national origin, disability, or protected veteran status.

We believe in the Hire to Retire philosophy and invest in individuals that we believe will be valuable assets to TCI and our customers for years to come. Thus, we want to help you live well through personal and professional growth plus a multitude of benefits. 

Market insight

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USD 27–40/hr
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Frequently Asked Questions

Where is the Heavy-Duty Diesel Mechanic job located?
This position is on-site in Foristell, MO, US.
What is the salary for the Heavy-Duty Diesel Mechanic role at TruckCentersInc?
The salary for this position is between USD 27–40 per hour, as advertised by the employer.
Is this a full-time or part-time position?
This is full-time position.
How do I apply for the Heavy-Duty Diesel Mechanic position?
Click the "Apply Now" button on this page to be redirected to TruckCentersInc's official application page. No account on Jooglee is required.
When was this job posted?
This job was posted on October 22, 2026 and is currently listed as active on Jooglee.

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