Journeyman Diesel Mechanic

Job Title

Journeyman Diesel Mechanic

Bismarck, North Dakota

I-State Truck Center is a leading provider of heavy‑duty truck sales, parts, and service in the Midwest, specializing in Freightliner, Western Star, and Detroit Diesel products. With a commitment to excellence and customer satisfaction, we serve commercial fleets, owner‑operators, and businesses across North Dakota and beyond. Our Bismarck location is at the heart of our operations, offering a dynamic environment for skilled tradespeople to grow their careers.

The ideal candidate will have a strong background in diesel engine repair, diagnostics, and maintenance, with a focus on delivering high‑quality service to ensure customer satisfaction. This role offers highly competitive wages and opportunities for career growth in a dynamic work environment.

• Diagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy‑duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link).
• Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
• Component Replacement: Replace or repair critical components such as diesel engines, transmissions, differentials, turbochargers, or brake systems.
• Welding and Fabrication: Perform minor welding, cutting, or fabrication tasks to repair or modify truck frames, bodies, or components as needed.
• Documentation: Complete detailed service reports, document parts used, and record maintenance activities for warranty, billing, DOT compliance, and inventory purposes.
• Customer Interaction: Communicate with fleet managers or drivers to explain repairs, provide maintenance recommendations, and ensure satisfaction with service.
• Safety Compliance: Adhere to OSHA, DOT, and company safety regulations, maintain a clean work environment, and follow manufacturer protocols.
• Tool and Equipment Management: Maintain and organize tools, service vehicles, and diagnostic equipment to ensure operational readiness for field service.

• Education: High school diploma or equivalent; technical diploma or certification in diesel mechanics or heavy‑duty truck repair preferred.
• Experience: 2–5 years of experience repairing and maintaining heavy‑duty diesel trucks (e.g., Kenworth, Peterbilt, Freightliner, Volvo, or Mack).
• Skills:
  • In-depth knowledge of diesel engines, hydraulic systems, electrical systems, and electronic controls (e.g., ECM diagnostics).
  • Proficiency with diagnostic tools (e.g., Cummins Insite, Detroit Diesel Diagnostic Link, or OEM software) and hand/power tools.
  • Ability to read and interpret technical manuals, wiring diagrams, and hydraulic schematics.
  • Strong problem‑solving skills and attention to detail.
  • Basic welding and fabrication skills (preferred).
  • Excellent communication and customer service skills for interacting with fleet managers and drivers.
• Certifications: Manufacturer‑specific training (e.g., Cummins, Detroit Diesel, Paccar) or ASE Heavy Duty Truck certifications (e.g., T2–T8 series) are a plus.
• Physical Requirements: Ability to lift heavy parts (up to 50–75 lbs.), work in confined spaces (e.g., under truck chassis), and perform tasks in various weather conditions.
• Driver’s License: Valid driver’s license required; CDL (Commercial Driver’s License) with appropriate endorsements strongly preferred.

• Competitive Wages – Be paid your worth!
• Uniforms – fully supplied by Interstate including cleaning!
• Tool program – available
• Tuition assistance – for educational and ongoing career growth
• Health, dental and vision coverage – begins on the first day of the following month.
• Paid Time Off – (PTO) starts accruing day one of your full‑time employment.
• Holidays – 6 Holidays and 2 Floating Holidays per year
• 401(K) – with company matching.
• Long Term Disability – Supplied
• Short Term Disability – Supplied
• Life Insurance – Supplied
• Healthiest You – Virtual Health Care paid by Interstate.
• PPE…