Heavy-Duty Diesel Mechanic

Job Description

Job Description

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.

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