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Job Title: Experienced Diesel Technician – Heavy-Duty Trucks
Location: Sheboygan, WI (Onsite)
Schedule: Full-Time | Monday–Friday | 1st Shift (8:00 AM–5:00 PM or 7:30 AM–4:30 PM) | No weekends or nights
Job Overview
We are seeking an experienced Diesel Technician to join a respected, long-established heavy-duty truck service team serving Wisconsin and Illinois for over 40 years. This is a great opportunity for a skilled technician who wants a stable first-shift schedule, strong team culture, ongoing OEM training, and the ability to take ownership of repair work from diagnosis to completion.
You will work on all-makes commercial trucks and buses, performing advanced diagnostics, repairs, and preventive maintenance. Senior technicians may also mentor junior team members and contribute to maintaining high service standards.
Key Responsibilities
- Perform repairs as outlined on work orders with accuracy and efficiency
- Diagnose and troubleshoot mechanical, electrical, and performance issues
- Repair and overhaul diesel engines, transmissions, differentials, and driveline systems
- Service brake systems (air and hydraulic), steering, suspension, and HVAC systems
- Install and replace components including injectors, pistons, liners, camshafts, bearings, clutches, and more
- Use diagnostic software/tools to identify and resolve issues
- Conduct road tests to verify repairs and vehicle performance
- Document all work performed according to company and industry standards
- Follow all safety procedures and maintain a clean, compliant work environment
- Support continuous improvement and participate in ongoing technical training
Required Qualifications
- 5+ years of hands-on experience with diesel engines and heavy-duty trucks
- Strong diagnostic and troubleshooting skills (mechanical and electrical systems)
- Experience with engines, transmissions, differentials, brakes, steering, and driveline systems
- Ability to use diagnostic computers/software
- Must own a complete professional toolset
- Valid driver's license with a clean driving record
- Ability to obtain a CDL if not already held
- High school diploma or equivalent (technical/vocational training preferred)
Preferred Qualifications
- ASE certifications and/or OEM training
- EPA 608/609 certification
- Experience with International trucks or Cummins engines
- Prior dealership or fleet maintenance experience
What We Offer
- Stable Monday–Friday schedule (no nights or weekends)
- Small, team-oriented shop environment (no micromanagement)
- Family-like culture with strong technician respect and support
- Tool and work boot allowance
- Ongoing OEM-certified training and internal development programs
- Opportunity to work independently and grow into a lead technician role
Work Environment
- Small, highly skilled technical team (lean shop structure)
- Focus on quality repairs, efficiency, and continuous improvement
- Mentorship opportunities for senior technicians
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