# Engine and Other Machine Assemblers

> Construct, assemble, or rebuild machines, such as engines, turbines, and similar equipment used in such industries as construction, extraction, textiles, and paper manufacturing.

- Edition: Data verified Nov 2026 · CollegesRef 2026–27 edition
- Page: https://www.collegesref.com/careers/engine-and-other-machine-assemblers
- SOC code: 51-2031.00
- Career family: Production
- Median annual pay: $53,710 (10th percentile $38,500, 90th percentile $77,750)
- Projected growth: Decline, -17.0%
- Openings a year: 2,100
- Typical entry education: High school diploma
- Bright outlook: no
- Data years: BLS 2025 wages · 2025–35 projections

## Interest profile (code RCI)

| Interest area | Score (0–100) |
| --- | ---: |
| Realistic (R) | 100 |
| Investigative (I) | 28 |
| Artistic (A) | 4 |
| Social (S) | 0 |
| Enterprising (E) | 1 |
| Conventional (C) | 56 |

## What you'd do

- Handling and Moving Objects (importance 83/100)
- Controlling Machines and Processes (importance 83/100)
- Inspecting Equipment, Structures, or Materials (importance 75/100)
- Performing General Physical Activities (importance 72/100)
- Getting Information (importance 69/100)
- Communicating with Supervisors, Peers, or Subordinates (importance 65/100)
- Identifying Objects, Actions, and Events (importance 64/100)
- Evaluating Information to Determine Compliance with Standards (importance 64/100)
- Making Decisions and Solving Problems (importance 60/100)
- Establishing and Maintaining Interpersonal Relationships (importance 59/100)

## Skills

Operations Monitoring, Quality Control Analysis, Reading Comprehension, Active Listening, Critical Thinking, Monitoring, Speaking, Complex Problem Solving, Equipment Maintenance, Operation and Control

## Knowledge

Mechanical, Production and Processing, Customer and Personal Service, Engineering and Technology, Mathematics, Public Safety and Security, Administration and Management, Design, Education and Training, English Language

## Also called

Air Conditioning Coil Assembler (AC Coil Assembler), Aircraft Engine Assembler, Aircraft Power Plant Assembler, Aircraft Powerplant Assembler, Assembler, Assembler Erector, Assembling Motor Builder, Assembly Line Worker, Automation Machine Builder, Automobile Engine Assembler

## Majors that lead here (NCES CIP–SOC crosswalk, 4-digit CIP)

- [Vehicle Maintenance and Repair Technologies/Technicians](https://www.collegesref.com/programs/4706) (CIP 4706, 713 colleges)

## Colleges with strong outcomes (College Scorecard, 2025)

| College | Program | Earnings 1 yr | Earnings 4 yrs | Median debt |
| --- | --- | ---: | ---: | ---: |
| [Embry-Riddle Aeronautical University-Worldwide](https://www.collegesref.com/college/embry-riddle-aeronautical-university-worldwide-910) | Vehicle Maintenance and Repair Technologies/Technicians | $77,491 | $87,797 | $21,986 |
| [SUNY Morrisville](https://www.collegesref.com/college/suny-morrisville-2657) | Vehicle Maintenance and Repair Technologies/Technicians | $51,819 | $61,351 | not reported |

## Related careers

- [Aircraft Structure, Surfaces, Rigging, and Systems Assemblers](https://www.collegesref.com/careers/aircraft-structure-surfaces-rigging-and-systems-assemblers): $65,380 median pay
- [Electromechanical Equipment Assemblers](https://www.collegesref.com/careers/electromechanical-equipment-assemblers): $45,850 median pay
- [Electric Motor, Power Tool, and Related Repairers](https://www.collegesref.com/careers/electric-motor-power-tool-and-related-repairers): $56,210 median pay
- [Electrical and Electronic Equipment Assemblers](https://www.collegesref.com/careers/electrical-and-electronic-equipment-assemblers): $45,850 median pay
- [Industrial Machinery Mechanics](https://www.collegesref.com/careers/industrial-machinery-mechanics): $64,520 median pay
- [Rail Car Repairers](https://www.collegesref.com/careers/rail-car-repairers): $67,530 median pay

## Sources

- [O*NET Database](https://www.onetcenter.org/database.html), version 31.0 (CC BY 4.0)
- [BLS Employment Projections](https://www.bls.gov/emp/tables.htm), version 2025-35, data year 2025 (Public domain (U.S. government work))
- [BLS Occupational Employment and Wage Statistics](https://www.bls.gov/oes/tables.htm), version 2025, data year 2025 (Public domain (U.S. government work))
- [NCES CIP 2020 to SOC 2018 crosswalk](https://nces.ed.gov/ipeds/cipcode/resources.aspx?y=56), version 2020, data year 2020 (Public domain (U.S. government work))

O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. CollegesRef has modified all or some of this information.