Engine and Other Machine Assemblers
O*NET 51-2031.00 · SOC 51-2031
Engine and Other Machine Assembler is a risky career choice. Median pay is $54k a year with -17% projected growth through 2035 (declining) and about 2,100 openings a year. AI exposure: High.
Bureau of Labor Statistics projections 2025–2035 · Data updated 2026-07-27
What You'd Actually Do
- →Assemble engine components according to blueprints and specifications
- →Bolt and fasten parts using hand and power tools
- →Test assembled engines for proper operation and performance
- →Inspect finished assemblies for defects or misaligned parts
- →Lubricate engine parts before and during assembly
Education & How to Get In
Engine and Other Machine Assembler roles typically require a high school diploma or equivalent, with most training happening on the job. This makes it one of the more accessible career paths — you can often start working while earning certifications or completing short-term training programs.
Get Started Learning
Ready to start building skills for a career as an Engine and Other Machine Assembler? These platforms offer courses you can start today — many with free trials or financial aid.
Links open in a new tab. Some may include affiliate partnerships.
Work Environment
Hands-on — labs, workshops, or field sites
Mixed — alternates between solo focused work and collaboration
A Day in the Life
While every role varies by employer and specialization, a typical day as an Engine and Other Machine Assembler involves a mix of core responsibilities:
Personality Fit (RIASEC)
Who Thrives as Engine and Other Machine Assembler?
Based on the interests and work style this role actually demands, these personality types tend to fit it best. Salary and growth tell you if a career is worth entering — personality fit tells you whether you'll still want it in five years.
Not sure which you are? Take the 7-minute quiz →
See Open Engine and Other Machine Assembler Roles
Browse live openings to get a feel for requirements and pay in your area.
Similar Careers
Explore More Careers
Job Outlook
Employment of Engine and Other Machine Assemblers is projected to decline 17% from 2025 to 2035, declining for all occupations.
Will AI Replace This Job?
- ·42% routine cognitive tasks — high automation target
- ·46% physical tasks — limited by robotics progress
- ·Declining employment suggests structural disruption
Scored from the mix of routine, creative, physical and social tasks the role involves, adjusted for sector and projected growth. An estimate, not a forecast.
Common Questions
How much does an Engine and Other Machine Assembler make?
The median Engine and Other Machine Assembler earns $54k a year, according to the Bureau of Labor Statistics' May 2025 wage data. Half earn more than that and half earn less, and pay varies considerably by state, industry and experience.
Will AI replace Engine and Other Machine Assembler jobs?
Our model puts Engine and Other Machine Assembler at 66 out of 100 for automation exposure, which is high disruption risk. The main drivers: 42% routine cognitive tasks — high automation target; 46% physical tasks — limited by robotics progress.
Is Engine and Other Machine Assembler a growing field?
Employment is projected to shrink 17% between 2025 and 2035, which is declining. That works out to roughly 2,100 openings a year, counting both new positions and people leaving the occupation.
What degree do you need to be an Engine and Other Machine Assembler?
Most Engine and Other Machine Assembler roles need a high school diploma or equivalent, with training happening on the job. A degree is not the usual route in.
How long does it take to become an Engine and Other Machine Assembler?
Typically under a year, usually a high school diploma plus short training. O*NET classes this role as Job Zone 2 of 5, which describes how much preparation people in it usually have.
Is an Engine and Other Machine Assembler career right for you?
Your personality, values, and strengths matter as much as the job market. Take the quiz to see your personalized Future-Fit Score for this career and hundreds more.
Take the assessment →Free to take · Matches $9 · No account required · 7 minutes