Diesel Mechanic

Interstate Companies, Inc.; Wisconsin; On-site; USD 50,000 - 70,000; Full time

Benefits offered by this job

Competitive pay

Uniforms provided + cleaning included

Tool program assistance

Full benefits (medical, dental, vision)

401(k) with company match

PTO starting Day 1

Paid holidays + floating holidays

Company-paid life, short-term & long-term disability

Safety reimbursement (boots & glasses)

Employee discounts + pet insurance options

Free 24/7 Employee Assistance Program

Job summary

Interstate Power Systems is hiring a skilled technician in Butler, WI, to diagnose and repair mechanical issues on heavy-duty trucks and equipment. The position requires 2+ years of experience with diesel engines and the ability to lift up to 75 lbs. It offers competitive pay, uniforms, full benefits, and a supportive environment.

Join us and take advantage of our 401(k) with company match, paid time off starting Day 1, and employee assistance program.

Qualifications

• 2+ years working on diesel trucks or heavy equipment.
• Ability to lift up to 75 lbs. and work in shop conditions.
• Valid driver's license required (CDL preferred).

Responsibilities

• Diagnose and repair mechanical, electrical, and hydraulic systems.
• Repair/replace major components including engines and transmissions.
• Communicate repairs and recommendations to customers.

Skills

Mechanical aptitude with diesel engines

Experience with electrical systems

Ability to read schematics

Experience with OEM diagnostic tools

Education

Diesel tech certification or ASE (T2–T8)

Tools

Diagnostic software (Cummins Insite, Detroit Diagnostic Link)

Job description

Location: Butler, WI
Shift: 3:00 PM – 11:00 PM

Why Join Interstate Power Systems?

Interstate Power Systems is a leading provider of heavy‑duty truck and equipment service across the Midwest, representing top brands like Freightliner, Western Star, MTU, Volvo, Allison Transmissions and Detroit Diesel.

At our Butler location, you’ll work alongside a skilled team in a fast‑paced shop with competitive pay, strong benefits, and real career growth opportunities.

What You’ll Do

• Diagnose and repair mechanical, electrical, and hydraulic systems on heavy‑duty diesel trucks and/or equipment.
• Repair/replace major components including engines, transmissions, turbos, and differentials
• Use diagnostic software (Cummins Insite, Detroit Diagnostic Link, OEM tools)
• Complete service documentation for repairs, parts, and compliance
• Communicate repairs and recommendations to customers and internal teams
• Follow all safety standards (OSHA, DOT, company protocols)
• Maintain tools and equipment for daily operations

What We’re Looking For

• Experience: 2+ years working on diesel trucks or heavy equipment
• Strong mechanical aptitude with diesel engines, electrical systems, and diagnostics
• Ability to read schematics, wiring diagrams, and service manuals
• Experience with OEM diagnostic tools preferred
• Valid driver’s license required (CDL preferred)
• Ability to lift up to 75 lbs. and work in shop conditions

Bonus Points

• Diesel tech certification or ASE (T2–T8)
• Experience with Freightliner, Kenworth, Peterbilt, Volvo, or Mack

What We Offer

• Competitive pay - earn what you’re worth
• Uniforms provided + cleaning included
• Tool program assistance
• Full benefits (medical, dental, vision) - start the 1st of the month after hire
• 401(k) with company match
• PTO starting Day 1
• Paid holidays + floating holidays
• Company‑paid life, short‑term & long‑term disability
• Safety reimbursement (boots & glasses)
• Employee discounts + pet insurance options
• Free 24/7 Employee Assistance Program

Apply Today

Join a company that lives its values - Pride in Service - and invests in your future.

Interstate Companies is an Equal Opportunity Employer and proudly support military veterans.