Diesel Mechanic vs Mechanic: pay, outlook, education and work, side by side.
Every row comes from one named source and says which career leads on that one dimension. There is no overall score.
Diesel Mechanic vs Mechanic: BLS classifies them as different occupations (SOC 49-3031 and 49-3023). The national median annual wage is $61,770 for diesel mechanics and $50,620 for mechanics (BLS, May 2025). BLS projects national employment to change +3.6% for diesel mechanics and +5.0% for mechanics from 2025 to 2035. Typical entry-level education: High school diploma or equivalent vs Postsecondary nondegree award. Which fits better depends on what you value; the table shows who leads on each dimension, with no overall winner.
Side by side
Data Differences smaller than a stated threshold read “About the same” (pay 5%, growth 2 points, openings 10%, one education level, ORS 10 points, O*NET 0.2).
Pick what matters to you; the matching rows are highlighted. Nothing is combined into a score.
| Dimension · source | Diesel MechanicSOC 49-3031 | MechanicSOC 49-3023 | Leads on this dimension |
|---|---|---|---|
| Median annual wageBLS OEWS, May 2025 (national) | $61,770 | $50,620 | Diesel Mechanic |
| EmploymentBLS OEWS, May 2025 | 289,960 | 704,640 | Not ranked |
| Projected employment change, 2025–35BLS Employment Projections (national) | +3.6% | +5.0% | About the same |
| Projected numeric change in jobs, 2025–35BLS Employment Projections (national) · A count, not a rate: it scales with the size of the occupation. | +11,400 jobs | +40,900 jobs | Not ranked |
| Projected openings (annual average)BLS Employment Projections, 2025–35 | 24,400 a year | 66,200 a year | Mechanic |
| Typical entry-level educationBLS Employment Projections · typical, not a legal requirement | High school diploma or equivalent | Postsecondary nondegree award | Diesel Mechanic |
| Typical work experience in a related occupationBLS Employment Projections | None | None | About the same |
| Typical on-the-job trainingBLS Employment Projections | Long-term on-the-job training | Short-term on-the-job training | Not ranked |
| Telework available (share of workers)2025 preliminary BLS ORS | less than 0.5% | less than 0.5% | About the same |
| No prior work experience required (share of workers)2025 preliminary BLS ORS | 17.0% | 47.6% | Mechanic |
| Most common minimum education (share of workers)2025 preliminary BLS ORS · A different metric from BLS typical entry-level education. | High school diploma (61.6%) | High school diploma (50.7%) | Not ranked |
| Pressure level (O*NET, 1–5; lower = less)O*NET® 31.0 work context | 3.21 | 3.22 | About the same |
| Social-contact level (O*NET, 1–5)O*NET® 31.0 work context · not ranked: neither direction is better | 3.76 | 3.63 | Not ranked |
| Freedom to make decisions (O*NET, 1–5)O*NET® 31.0 work context | 4.07 | 4.17 | About the same |
| Work styles O*NET rates most importantO*NET® 31.0 work styles (occupation ratings, not a personality test) | Dependability, Attention to Detail, Cautiousness | Attention to Detail, Dependability, Perseverance | Not ranked |
Choose based on what matters to you
Data Each line restates a measured difference from the table; nothing here predicts how you will feel about a job.
- higher median pay matters most ($61,770 vs $50,620)
- a shorter typical education path matters (High school diploma or equivalent vs Postsecondary nondegree award)
- starting without prior experience matters (47.6% vs 17.0%)
Which skills each one leans on
Data O*NET 31.0 skill ratings: level (0–7) and importance.
Skill-profile match: 93% (similarity of the two O*NET skill profiles, importance × level; 100% = identical).
- Science (+0.8 on O*NET's 0–7 skill-level scale)
- Operations Analysis (+0.7 on O*NET's 0–7 skill-level scale)
- Programming (+0.5 on O*NET's 0–7 skill-level scale)
- Social Perceptiveness (+0.4 on O*NET's 0–7 skill-level scale)
- Installation (+1.5 on O*NET's 0–7 skill-level scale)
- Service Orientation (+0.9 on O*NET's 0–7 skill-level scale)
- Systems Evaluation (+0.6 on O*NET's 0–7 skill-level scale)
- Systems Analysis (+0.5 on O*NET's 0–7 skill-level scale)
What each career involves
Data Core tasks from O*NET 31.0.
Diesel Mechanic
- Use handtools, such as screwdrivers, pliers, wrenches, pressure gauges, or precision instruments, as well as power tools, such as pneumatic wrenches, lathes, welding equipment, or jacks and hoists.
- Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
- Raise trucks, buses, and heavy parts or equipment using hydraulic jacks or hoists.
- Adjust and reline brakes, align wheels, tighten bolts and screws, and reassemble equipment.
Mechanic
- Follow checklists to ensure all important parts are examined, including belts, hoses, steering systems, spark plugs, brake and fuel systems, wheel bearings, and other potentially troublesome areas.
- Test and adjust repaired systems to meet manufacturers' performance specifications.
- Perform routine and scheduled maintenance services, such as oil changes, lubrications, and tune-ups.
- Inspect vehicles for damage and record findings so that necessary repairs can be made.
Largest employing industries
Data Share of all jobs in each occupation, BLS Employment Matrix 2025.
Diesel Mechanic
- Truck transportation (17.8% of all jobs in this occupation)
- Government, excluding state and local education and hospitals (10.8% of all jobs in this occupation)
- Merchant wholesalers, durable goods (10.7% of all jobs in this occupation)
Mechanic
- Motor vehicle and parts dealers (38.5% of all jobs in this occupation)
- Repair and maintenance (30.7% of all jobs in this occupation)
- Government, excluding state and local education and hospitals (3.5% of all jobs in this occupation)
Moving between these careers
Data The comparison shows which; the career-change guides show how.
- Diesel Mechanic → Mechanic: skills to build: Installation, Service Orientation, Systems Evaluation. Careers after Diesel Mechanic
- Mechanic → Diesel Mechanic: skills to build: Science, Operations Analysis, Programming. Careers after Mechanic
Go deeper
Diesel Mechanic career hub · Diesel Mechanic salary · Diesel Mechanic how to become · Diesel Mechanic career change · Mechanic career hub · Mechanic salary · Mechanic career change
Common questions
Which pays more, Diesel Mechanic or Mechanic?
Which is growing faster?
Which is better?
How this page is built
BLS classifies them as different occupations (SOC 49-3031 and 49-3023). Pay: BLS OEWS May 2025 national median for each occupation's SOC code. Outlook: BLS Employment Projections 2025–35 (growth, numeric change and annual openings are separate metrics). Requirements rows: 2025 preliminary BLS Occupational Requirements Survey, shown only when both roles have detailed-occupation estimates. Work environment: O*NET 31.0 work context. This page includes information from the 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. O*NET® is a trademark of USDOL/ETA. TryHired has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications. Searches this page answers include “diesel mechanic vs auto mechanic salary”, “auto mechanic vs diesel mechanic salary” (Ahrefs, U.S.).
- Any one employer's pay, schedule or culture.
- Job security, ease of hiring or work-life balance: these are not measured here.
- Which career you will prefer: the rows describe the occupations, not you.
- U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates (public domain).
- U.S. Bureau of Labor Statistics, Employment Projections program, 2025–35 national projections (growth, openings, typical entry-level education and experience).
- O*NET 31.0 Database, U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under the CC BY 4.0 license. TryHired selected, ranked and combined the data; O*NET is not responsible for these pages.
- U.S. Bureau of Labor Statistics, Occupational Requirements Survey, 2025 estimates (preliminary: two of the third wave's samples, collected August 2023 to July 2025; released January 16, 2026), public domain.
- U.S. Bureau of Labor Statistics, Employment Projections program, 2025–35 National Employment Matrix (all jobs, including self-employed).