Senior Diesel Mechanic
Interstate Power Systems · Sun Prairie, Wisconsin · Posted Jul 5, 2026
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JOB REQUIREMENTS: Job Title: Senior Diesel Mechanic Location: Madison
Wisconsin Company: I-State Truck Center 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
Wisconsin and beyond. Our Madison 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. Key Responsibilities: 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. Qualifications: 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\... For full
info follow application link. Equal Opportunity Employer
minorities/females/veterans/individuals with disabilities/sexual
orientation/gender identity. \*\*\*\*\* APPLICATION INSTRUCTIONS: Apply
Online: ipc.us/t/397D83471E894FA2