Engine Rebuild Technician

Job Title: Engine Rebuild Technician

Location: Gillette, WY (10750 Highway 59, Gillette, WY 82718)

Company: Interstate Power Systems

Employment Type: Full-Time

Department: Service / Rebuild Shop

About Interstate Power Systems

Interstate Power Systems is a leading distributor and service provider of high-quality on-highway and off-highway engines, transmissions, and related power solutions. As a factory-authorized service center for brands including MTU, Detroit Diesel, and Allison, we support critical industries such as mining, energy production, construction, and transportation. Our Gillette location provides reliable 24/7 support with a focus on keeping equipment running in demanding environments.

Job Summary

We are seeking an experienced Engine Rebuild Technician to join our in-shop team in Gillette, Wyoming. This role specializes in full ground-up rebuilds, in-frame overhauls, and complete engine overhauls on MTU, Detroit, and Allison-powered equipment. The position is primarily shop-based, repetitive in nature, and demands precision, strong mechanical aptitude, and meticulous attention to detail to ensure every rebuild meets factory specifications and delivers long-term reliability.

Key Responsibilities

• Perform complete engine rebuilds, including disassembly, inspection, machining preparation, parts replacement, reassembly, and testing of MTU, Detroit Diesel, and other heavy-duty engines.
• Execute in-frame overhauls and full out-of-frame overhauls with a focus on precision and quality.
• Work on Allison transmissions and related components as needed in conjunction with engine projects.
• Conduct thorough inspections, measurements, and diagnostics to identify wear, damage, or required repairs.
• Follow detailed service manuals, technical bulletins, and OEM procedures to maintain warranty and performance standards.
• Prepare engines/transmissions for dyno testing.
• Maintain a clean, organized, and safe work environment in the rebuild shop.
• Document all work performed, including parts used, measurements, and test results.
• Collaborate with service advisors, parts personnel, and other technicians to ensure efficient workflow.

Qualifications

• Proven experience in diesel engine rebuilding, with specific expertise in full ground-up rebuilds and in-frame/overhaul work on heavy-duty engines (MTU and/or Detroit Diesel experience strongly preferred).
• Familiarity with Allison transmissions is a plus.
• Strong mechanical aptitude and ability to read blueprints, schematics, and precision measuring tools (micrometers, bore gauges, dial indicators, etc.).
• Excellent attention to detail and commitment to quality workmanship in a repetitive, high-precision environment.
• Ability to work independently with minimal supervision while meeting production timelines.
• Experience with engine dyno testing and performance validation is preferred but not required; training provided as needed.
• High school diploma or GED required; technical/vocational training in diesel mechanics or related field preferred.
• Valid driver's license with a clean driving record.
• Ability to lift heavy components and stand for extended periods.

Preferred Skills

• Prior work in mining, oil & gas, or heavy equipment service environments.
• Certification or training from MTU, Detroit Diesel, or Allison (or willingness to obtain).
• Basic computer skills for work order systems and documentation.

What We Offer

• Competitive hourly wage based on experience (with potential for overtime).
• Comprehensive benefits package, including health insurance, retirement plans, and paid time off.
• Opportunities for ongoing training and certification through OEM programs.
• Tool purchase programs and other employee perks.
• Stable, full-time shop role with no regular field travel required.
• Supportive team environment in a growing organization with a strong reputation for quality service.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Interstate Companies is an Equal Opportunity Employer, and we encourage all qualified and interested persons to apply for this position by submitting a resume for consideration.