Heavy-Duty Diesel Technician

Truck Country; Marinette (WI); On-site; USD 52,000 - 76,000; Full time

Benefits offered by this job

Competitive pay and benefits

Career development opportunities

Job summary

Truck Country in Wisconsin is seeking a Diesel Technician to perform preventative maintenance, diagnostics, and repairs on medium- and heavy-duty trucks in a fast-paced shop. You’ll use advanced tools and work both independently and with a team to keep our fleet and customers on the road.

This role requires experience with heavy-duty engines, proficiency with diagnostic software, and strong attention to detail.

Qualifications

• Experience working with medium- or heavy-duty trucks.
• Basic computer skills, including diagnostic software.
• Proficiency with power and hand tools.
• Strong attention to detail and a clean, organized workspace.
• Excellent communication skills for documenting and relaying repair findings.

Responsibilities

• Perform preventative maintenance, diagnostics, and repairs on medium- and heavy-duty trucks.
• Use advanced diagnostic tools to troubleshoot engine and system issues.
• Accurately document findings and repairs using company-provided laptops and software.
• Work both independently and collaboratively in a team-oriented shop environment.
• Engage in ongoing training and development to stay up to date with the latest repair techniques and technologies.

Skills

Medium- and heavy-duty trucks

Diagnostics software

Documentation

Tools proficiency

Tools

Diagnostic software

Job description

At Truck Country, you’ll play a vital role in maintaining and repairing medium- and heavy-duty trucks, ensuring both our fleet and our customers’ trucks stay on the road. We provide the tools, training, and technology you need to succeed in an industry that keeps America moving.

What You’ll Do:

• Perform preventative maintenance, diagnostics, and repairs on medium- and heavy-duty trucks.
• Use advanced diagnostic tools to troubleshoot engine and system issues.
• Accurately document findings and repairs using company-provided laptops and software.
• Work both independently and collaboratively in a team-oriented shop environment.
• Engage in ongoing training and development to stay up to date with the latest repair techniques and technologies.

Required Qualifications:

• Experience working with medium- or heavy-duty trucks.
• Basic computer skills, including diagnostic software.
• Proficiency with power and hand tools.
• Strong attention to detail and a clean, organized workspace.
• Excellent communication skills for documenting and relaying repair findings.

Preferred Qualifications:

• 3-4 years of experience as a Diesel Technician, especially with Class 8 vehicles.
• Certifications for Detroit or Cummins engines (priority hiring for certified candidates).
• CDL license (preferred but not required).
• Ability to lift 50+ lbs. and perform physically demanding tasks.
• Experience with engine overhauls is a plus.

Why Choose Truck Country?

At Truck Country, we offer more than just a job—we offer a career path. We invest in our team by providing:

• Competitive pay & comprehensive benefits.
• Hands-on training and career advancement opportunities.
• A supportive team environment where your skills and dedication are valued.

Join a company that values its technicians as much as its trucks!

Truck Country® / Stoops Freightliner-Western Star is one of the largest Freightliner and Western Star dealership groups in the United States, serving customers across Illinois, Indiana, Iowa, Ohio, Michigan, and Wisconsin. Fornearly 60years, Truck Country® / Stoops has provided new and used medium- and heavy-duty trucks, expert service,a comprehensiveparts inventory, and convenient financing solutions.

Truck Country® / Stoops Freightliner-Western Star is part of McCoy Group, Inc., a family-owned organization founded in 1958 by Robert McCoy in Shullsburg, Wisconsin. Today, the company continues tooperateunder the leadership of the McCoy family.

McCoy Group, Inc. and its affiliated companies are Equal Opportunity Employers and take affirmative action to employ and advance in employment qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable law.