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Heavy-Duty Diesel Mechanic

Interstate Companies

Heavy-Duty Diesel Mechanic

Location: Davenport, IA

Company: Interstate Power Systems

Pay: $25.00-$40.00/hour DOE

Schedule: Full-Time | Second Shift

Interstate Power Systems is hiring a Heavy-Duty Diesel Mechanic to support our growing operation in Davenport, IA. This position is ideal for technicians with hands-on experience working on Class 8 trucks, diesel engines, transmissions, and heavy-duty vehicle systems .

Position Overview

As a Heavy-Duty Diesel Mechanic, you will diagnose, repair, and maintain diesel-powered trucks and equipment , with a strong focus on Freightliner, Detroit Diesel, Allison Transmissions, and Cummins engines . This role requires strong diagnostic skills, attention to detail, and the ability to work independently on second shift.

What You'll Be Doing

  • Diagnose and repair heavy-duty diesel engines, transmissions, electrical, and hydraulic systems
  • Perform preventive maintenance including oil changes, brake inspections, tire rotations, and fluid services
  • Use diagnostic software and tools to troubleshoot engine and drivetrain issues
  • Conduct detailed vehicle inspections and recommend corrective actions
  • Document repairs, parts, and maintenance using fleet management software
  • Ensure all work meets DOT regulations , safety guidelines, and company standards
  • Collaborate with first-shift technicians and leadership to maintain workflow
  • Keep the shop clean, organized, and safety-compliant
  • Stay current on diesel engine technology and manufacturer updates


What We're Looking For

  • 3-5+ years of heavy-duty diesel mechanic experience (truck, fleet, or equipment)
  • Strong experience with Freightliner, Detroit Diesel, Cummins, and Allison products
  • Proficiency with diagnostic tools such as:
    • Detroit Diesel Diagnostic Link
    • Cummins Insite
    • Allison DOC



  • Ability to read schematics, wiring diagrams, and service manuals
  • ASE certifications (T2-T8 preferred); OEM certifications a plus
  • High school diploma or GED; diesel tech school preferred
  • Valid driver's license required; CDL A or B preferred (not required)
  • Ability to lift up to 75 lbs and work in a shop environment
  • Must provide own basic tools (specialty tools provided)


Work Environment & Schedule

  • Shop-based role with occasional outdoor work
  • Exposure to noise, fumes, and heavy machinery
  • Second shift with flexibility for overtime and rotating on-call weekends


Employee Benefits

  • Competitive wages
  • Company-provided uniforms
  • Tool program available
  • Tuition assistance and career development
  • Medical, dental, and vision coverage
  • PTO starting day one
  • 6 paid holidays + 2 floating holidays
  • 401(k) with company match
  • Short- and long-term disability
  • Life insurance
  • Virtual healthcare (Healthiest You)
  • PPE reimbursement (boots & safety glasses)
  • Pet insurance
  • Employee discounts
  • Employee Assistance Program (EAP)
  • Paid health & wellness screenings


Interstate Companies is an Equal Opportunity Employer and proudly supports Military Friendly Hiring .

This job description may be adjusted at any time based on business needs.

#DieselMechanic

#HeavyDutyDiesel

#Technician

#FleetMaintenance

#CDRXP
Vacancy posted more than 2 months ago

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