Diesel Mechanic in Kentucky: Salary, License Requirements, and How to Start
Repair and maintenance
Kentucky employs 3,890 diesel mechanics, with a statewide median of $55,480 and wide variation by city and experience. Here is the real wage data, the exact Kentucky licensing picture, and where to train.
What Diesel mechanics Earn in Kentucky (May 2025)
- Kentucky median pay
- $55,480 (May 2025)
- Starting range (10th percentile)
- $38,250
- Experienced (75th percentile)
- $63,740
- Top earners (90th percentile)
- $80,500
- Employed in Kentucky
- 3,890
- U.S. median (for comparison)
- $60,660 (May 2024)
Wages vary substantially by metro. Median annual pay for diesel mechanics in major Kentucky markets:
- Cincinnati
- $62,400 (2,300 employed)
- Louisville/Jefferson County
- $61,310 (1,480 employed)
- Lexington
- $57,470 (390 employed)
- Clarksville
- $56,940 (120 employed)
- Bowling Green
- $51,920 (200 employed)
- Huntington
- $51,130 (250 employed)
What That Pay Is Worth in Kentucky
Prices in Kentucky run about 10% below the national average (cost-of-living index 90.2 vs a U.S. baseline of 100, 2024), so the $55,480 median stretches to roughly $61,508 in national buying-power terms.
Job Outlook in Kentucky (2024–2034)
Kentucky is projected to grow diesel mechanics employment +2.5%, about in line with the +2.4% projected nationally. The state expects about 350 openings a year, counting both growth and workers who retire or move on.
Kentucky License and Certification Requirements
No state license; ASE (Medium/Heavy Truck) certification — regulated by the No license required — ASE certification is the standard.
- Kentucky 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 Kentucky
Logistics hubs, trucking, and manufacturing drive demand. Engine-specific training (Cummins, Cat) raises pay.
Real training providers and registered apprenticeships in Kentucky include:
- Ashland Community and Technical College — Certificate
- Big Sandy Community and Technical College — Certificate / Associate
- Bluegrass Community and Technical College — Certificate / Associate
- Elizabethtown Community and Technical 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 Kentucky?
The median wage for diesel mechanics in Kentucky is $55,480 per year (May 2025, BLS). Entry-level pay (10th percentile) starts around $38,250, and top earners (90th percentile) make about $80,500. Pay varies by metro and years of experience.
What license or certification do you need to become a Diesel Mechanic in Kentucky?
No state license; ASE (Medium/Heavy Truck) certification, overseen by the No license required — ASE certification is the standard. Kentucky does not license diesel technicians.
Is being a Diesel Mechanic a good career in Kentucky?
Diesel engines power trucks, buses, heavy equipment, and generators — hands-on diagnosis and repair that cannot be done remotely.
Which Kentucky metros pay diesel mechanics the most?
Among Kentucky metro areas, Cincinnati leads at $62,400, followed by Louisville/Jefferson County ($61,310), Lexington ($57,470). 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 Kentucky?
Real Kentucky options include Ashland Community and Technical College, Big Sandy Community and Technical College, Bluegrass Community and Technical College. Most diesel mechanics start with an accredited program, then earn the credential the state or employer requires.
Is Diesel Mechanic a growing career in Kentucky?
Kentucky projects diesel mechanics employment to change +2.5% from 2024 to 2034, with about 350 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), Kentucky 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 Kentucky wages · Kentucky 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.