Engine Builder
Mechanic & Engine Technician
Apply technical knowledge and skills to the building and reconstruction of automotive and commercial vehicle engines.
What Engine Builders Do
Apply technical knowledge and skills to the building and reconstruction of automotive and commercial vehicle engines.
Common Tasks
- 1Read and interpret assembly blueprints or specifications manuals, and plan assembly or building operations.
- 2Inspect, operate, and test completed products to verify functioning, machine capabilities, or conformance to customer specifications.
- 3Position or align components for assembly, manually or using hoists.
- 4Set and verify parts clearances.
- 5Verify conformance of parts to stock lists or blueprints, using measuring instruments such as calipers, gauges, or micrometers.
What You'll Learn
Types of Engine Builders
Work Environment
Locations
- • Engine rebuild and machine shops
- • Manufacturing and assembly plants
- • Heavy equipment and diesel repair facilities
- • Fleet maintenance garages
- • Specialty performance shops
Schedule
Work is usually a set, routine shift with steady production deadlines and periods of high time pressure.
Physical Demands
The job involves long periods of standing and frequent handling of parts and tools, with repetitive motions. Expect regular bending/twisting and occasional kneeling/crouching while positioning and aligning components.
Salary & Job Outlook
National Employment: 38,400 jobs
Top Paying States
Why Demand May Grow
Demand can rise when fleets and industrial equipment need rebuilding to extend service life instead of buying new. Growth can also come from performance, racing, and specialty engine work that requires precise machining and assembly.
Skills You'll Need
Pros & Cons
Pros
- • Hands-on work building and rebuilding complex engines
- • Transferable skills across automotive, diesel, and industrial equipment
- • Clear quality standards and measurable results
- • Opportunities to specialize in performance or precision machining
- • Often steady, predictable shift schedules
Cons
- • Projected employment decline in some assembly roles
- • Repetitive work with high attention-to-detail demands
- • Physically taxing (standing, lifting/handling parts, awkward positions)
- • Time pressure to meet production or turnaround deadlines
- • Exposure to noise, oils, solvents, and metal debris without proper PPE
Common Questions About the Engine Builder Trade
Ready to Get Started?
Not Sure This Trade is Right?
Take our free career quiz to discover trades that match your interests and skills.
Take the Career Quiz