Diesel Mechanic in Montana: Salary, License Requirements, and How to Start
Repair and maintenance
Montana employs 1,230 diesel mechanics, with a statewide median of $59,990 and wide variation by city and experience. Here is the real wage data, the exact Montana licensing picture, and where to train.
What Diesel mechanics Earn in Montana (May 2025)
- Montana median pay
- $59,990 (May 2025)
- Starting range (10th percentile)
- $44,880
- Experienced (75th percentile)
- $71,180
- Top earners (90th percentile)
- $77,700
- Employed in Montana
- 1,230
- U.S. median (for comparison)
- $60,660 (May 2024)
Wages vary substantially by metro. Median annual pay for diesel mechanics in major Montana markets:
- Helena
- $64,110 (60 employed)
- Bozeman
- $63,910 (120 employed)
- Missoula
- $61,380 (140 employed)
- Billings
- $61,210 (380 employed)
- Great Falls
- $55,420 (70 employed)
What That Pay Is Worth in Montana
Prices in Montana run about 5% below the national average (cost-of-living index 94.6 vs a U.S. baseline of 100, 2024), so the $59,990 median stretches to roughly $63,414 in national buying-power terms.
Job Outlook in Montana (2024–2034)
Montana is projected to grow diesel mechanics employment +3.8%, faster than the +2.4% projected nationally. The state expects about 100 openings a year, counting both growth and workers who retire or move on.
Montana License and Certification Requirements
No state license; ASE (Medium/Heavy Truck) certification — regulated by the No license required — ASE certification is the standard.
- Montana does not license diesel technicians.
- Complete a diesel technology program or an employer apprenticeship.
- Earn ASE medium/heavy truck certifications as you gain experience.
Official requirements: No license required — ASE certification is the standard →
Training in Montana
Trucking, agriculture, and mining/heavy equipment drive demand. Engine-specific training (Cummins, Cat, John Deere) raises pay.
Real training providers and registered apprenticeships in Montana include:
- Fort Peck Community College — Certificate / Associate
- Helena College University of Montana — Certificate / Associate
- Highlands College of Montana Tech — Certificate / Associate
- Miles Community College — Certificate / Associate
Is This the Right Move for You?
Best for: People who like large, powerful machinery and want solid wages without a 4-year degree.
Think twice if: Grease, diesel exhaust, heavy components, and shop environments sound miserable rather than satisfying.
Why it's resilient: Diesel engines power trucks, buses, heavy equipment, and generators — hands-on diagnosis and repair that cannot be done remotely.
First Steps
Look for diesel technology programs at community colleges and vocational schools, or apply directly as a shop helper.
Frequently Asked Questions
How much do diesel mechanics make in Montana?
The median wage for diesel mechanics in Montana is $59,990 per year (May 2025, BLS). Entry-level pay (10th percentile) starts around $44,880, and top earners (90th percentile) make about $77,700. Pay varies by metro and years of experience.
What license or certification do you need to become a Diesel Mechanic in Montana?
No state license; ASE (Medium/Heavy Truck) certification, overseen by the No license required — ASE certification is the standard. Montana does not license diesel technicians.
Is being a Diesel Mechanic a good career in Montana?
Diesel engines power trucks, buses, heavy equipment, and generators — hands-on diagnosis and repair that cannot be done remotely.
Which Montana metros pay diesel mechanics the most?
Among Montana metro areas, Helena leads at $64,110, followed by Bozeman ($63,910), Missoula ($61,380). Local pay tracks regional demand and cost of living, so the highest-paying metro isn't always the best net move.
Where can I train to become a Diesel Mechanic in Montana?
Real Montana options include Fort Peck Community College, Helena College University of Montana, Highlands College of Montana Tech. Most diesel mechanics start with an accredited program, then earn the credential the state or employer requires.
Is Diesel Mechanic a growing career in Montana?
Montana projects diesel mechanics employment to change +3.8% from 2024 to 2034, with about 100 openings a year — a growing field in the state.
Sources and Verification
Wage data: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025), Montana statewide and metro estimates for SOC 49-3031. Licensing summary compiled from the No license required — ASE certification is the standard (2026-06-11). Requirements change — always confirm current rules with the board and verify program costs and outcomes before enrolling.
BLS Occupational Outlook · O*NET Montana wages · Montana licensing/certification source
Employment projections: Projections Central / BLS Employment Projections (2024–2034); Cost of living: BEA Regional Price Parities.
Pay percentiles describe current workers, not entry-level offers; training costs and local demand vary, so verify locally before committing money or quitting a job.