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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

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