Supplemental Experimental Mechanic

Caterpillar; Mossville (PA); On-site; USD 60,000 - 85,000; Full time

Benefits offered by this job

Medical, dental, and vision benefits

401(k) savings plans

Paid time off

HSA and FSAs

Job summary

Caterpillar Inc. in Mossville, IL, is seeking a Research and Experimental Mechanic to continuously improve engine test processes. You will assemble, fit, adjust, and dismantle engines ranging from 4.0 L to 340 L, following engineering drawings and models.

The role emphasizes safety, precision, and teamwork across experimental, pre-production, and legacy engines. The position requires 3–5 years in diesel engine service or a related technical degree, with relocation not offered.

Qualifications

• Minimum 3–5 years full-time experience in diesel engine service and repair or a 2-year technical degree in diesel power technology/engine power technology.
• Strong adherence to safety regulations and incident prevention; good communication and teamwork.
• Ability to think critically in difficult situations with minimal supervision.

Responsibilities

• Engineering theory and design
• Work from Pro-E and VisView models, blueprints and instructions
• Assist install builds on gaseous and diesel engines
• Fit cooling, air, hydraulic connections, wiring harnesses
• Install test leads, thermocouples and instrumentation
• Adjust valve train, gear train, fuel, cooling and oil systems
• Assemble complete units and subassemblies
• Fabricate intake/exhaust piping and modified wiring harnesses
• Suggest design improvements from testing data
• Plan assembly methods and sequences
• Install/Remove engines from testing cells
• Use common hand tools, power tools and cranes to assemble parts

Skills

Diesel engine service

Interpersonal skills

Safety compliance

Education

2-year technical degree in diesel power technology

Engine Power Technology/Caterpillar Dealer Service Technology

Job description

Career Area:OperationsJob Description:Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.Supplemental Experimental Mechanic Your Work Shapes the WorldAs a Research and Experimental Mechanic at Caterpillar Inc., you will continuously improve process efficiency by performing the assembling, fitting, and adjusting and/or dismantling required in the construction or disassembly of experimental engines. Individuals will work on experimental, pre-production, postproduction and legacy engines that range in size from 4.0 L to 340 L.

Job Duties/Responsibilities

• Engineering theory and design
• Work from Pro-E models, VisView models, blueprints and verbal instructions
• Assist install builds in various stages on both gaseous fuel and diesel type engines
• Fitting for cooling, air, hydraulic connections, and wiring harnesses for adaptation of the test device to the test machine
• Installing necessary test leads, thermocouples, cylinder pressure pick-up gauges, and instrumented test components as required performing the test
• Perform adjustments on valve train, gear train, fuel system, cooling system, and oil system
• Assembly of entire unit of a new design or the buildup of subassemblies
• Aid in the fabrication of intake and exhaust piping, instrumented fuel and cooling lines, and modified wiring harnesses
• Incorporating improvements and developments in present production models
• Evaluate and determine reusability of engine hardware during engine builds
• Uses various precision gauging tools to check accuracy of assembly and fitting operations.
• Plans method and sequence of assembly
• Install and remove engines from a testing cell
• Uses all common mechanic's hand tools, portable power tools, power presses, simple machines tools, and powered crane to assemble parts into complete unit, making alterations and hand fitting parts when necessary
• Makes suggestions concerning methods of overcoming difficulties encountered in assembly/disassembly and reasons for parts failure
• Initiate possible changes in design to correct failure, and any other pertinent criticisms or data gained while performing assembly/disassembly or dismantling or construction

Required Qualifications

• Minimum 3-5 years full time working experience in diesel engine service and repair industry OR 2 year technical degree within the disciples of diesel power technology, Industrial; Engine Power Technology, or Caterpillar Dealer Service Technology
• Top Candidates May Have: Prior experience with engine driven generators Tenacious desire to closely adhere to all safety regulations and policies, as well as robust incident prevention skills. Strong interpersonal and communication skills. Ability to think critically in difficult situations with minimal support or instruction. Strong internal drive to succeed, combined with impeccable personal integrity and unflappable accountability for results.

Additional Information

• As an Experimental Mechanic at the Caterpillar Tech Center, all tools required to perform tasks in your job role will be provided by Caterpillar.
• This position is located in Mossville, IL.
• Relocation is not available for this position.
• Visa Sponsorship is not available for this position.
• This is a supplemental position with limited benefits available.
• This is a 1st shift position (Monday through Friday)

Summary Pay Range:$0.00 - $0.00

Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.

Benefits

• Medical, dental, and vision benefits
• Paid time off plan (Vacation, Holidays, Volunteer, etc.)
• 401(k) savings plans
• Health Savings Account (HSA)
• Flexible Spending Accounts (FSAs)
• Health Lifestyle Programs
• Employee Assistance Program
• Voluntary Benefits and Employee Discounts
• Career Development
• Incentive bonus
• Disability benefits
• Life Insurance
• Parental leave
• Adoption benefits
• Tuition Reimbursement
• These benefits also apply to part-time employees

Posting Dates:August 27, 2026 - September 9, 2026

Any offer of employment is conditioned upon the successful completion of a drug screen.

Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.