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Diesel Mechanic in Michigan: Salary, License Requirements, and How to Start

Repair and maintenance

Michigan employs 9,020 diesel mechanics, with a statewide median of $61,420 and wide variation by city and experience. Here is the real wage data, the exact Michigan licensing picture, and where to train.

What Diesel mechanics Earn in Michigan (May 2025)

Michigan median pay: $61,420 (May 2025)
Starting range (10th percentile): $45,240
Experienced (75th percentile): $67,460
Top earners (90th percentile): $81,010
Employed in Michigan: 9,020
U.S. median (for comparison): $60,660 (May 2024)

Wages vary substantially by metro. Median annual pay for diesel mechanics in major Michigan markets:

Ann Arbor: $65,770 (220 employed)
Detroit: $63,360 (3,820 employed)
Flint: $61,780 (170 employed)
Lansing: $61,740 (400 employed)
Grand Rapids: $61,240 (1,550 employed)
Kalamazoo: $60,200 (230 employed)
Saginaw: $59,000 (190 employed)

What That Pay Is Worth in Michigan

Prices in Michigan run about 4% below the national average (cost-of-living index 96.2 vs a U.S. baseline of 100, 2024), so the $61,420 median stretches to roughly $63,846 in national buying-power terms.

Job Outlook in Michigan (2024–2034)

Michigan is projected to grow diesel mechanics employment +1.9%, about in line with the +2.4% projected nationally. The state expects about 720 openings a year, counting both growth and workers who retire or move on.

Michigan License and Certification Requirements

ASE Medium/Heavy Truck Certification (national — no state license) — regulated by the No Michigan state license required for diesel mechanics.

Michigan does not require a state license for diesel mechanics. The recognized credential is ASE (National Institute for Automotive Service Excellence) Medium/Heavy Truck certification (Series H: H1–H8 cover the main diesel systems; T-Series covers transit buses). Most employers consider ASE certification when making hiring and wage decisions.
Entry paths: (1) Enroll in a diesel technology program at a community or technical college (12–24 months) to earn foundational theory and lab experience, then enter the industry. (2) Start as a lube tech or diesel apprentice helper at a dealership or fleet shop and work toward certifications on the job.
Manufacturers (Caterpillar, Cummins, Detroit Diesel, Allison) offer factory training for their specific engines — a strong career differentiator. EPA 609 certification is required to work on A/C systems in heavy trucks.

Official requirements: No Michigan state license required for diesel mechanics →

Training in Michigan

Major diesel employers in Michigan include Kenworth, Peterbilt, and Freightliner dealerships; large trucking fleets (Werner, J.B. Hunt, Amazon Logistics); municipalities (bus fleets, heavy equipment); and construction/mining equipment dealers. ASE-certified technicians consistently earn $5–$10/hr more than non-certified peers.

Real training providers and registered apprenticeships in Michigan include:

Alpena Community College — Certificate / Associate
Andrews University — Certificate
Baker College — Certificate / Associate
Bay de Noc 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 Michigan?

The median wage for diesel mechanics in Michigan is $61,420 per year (May 2025, BLS). Entry-level pay (10th percentile) starts around $45,240, and top earners (90th percentile) make about $81,010. Pay varies by metro and years of experience.

What license or certification do you need to become a Diesel Mechanic in Michigan?

ASE Medium/Heavy Truck Certification (national — no state license), overseen by the No Michigan state license required for diesel mechanics. Michigan does not require a state license for diesel mechanics. The recognized credential is ASE (National Institute for Automotive Service Excellence) Medium/Heavy Truck certification (Series H: H1–H8 cover the main diesel systems; T-Series covers transit buses). Most employers consider ASE certification when making hiring and wage decisions.

Is being a Diesel Mechanic a good career in Michigan?

Diesel engines power trucks, buses, heavy equipment, and generators — hands-on diagnosis and repair that cannot be done remotely.

Which Michigan metros pay diesel mechanics the most?

Among Michigan metro areas, Ann Arbor leads at $65,770, followed by Detroit ($63,360), Flint ($61,780). 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 Michigan?

Real Michigan options include Alpena Community College, Andrews University, Baker 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 Michigan?

Michigan projects diesel mechanics employment to change +1.9% from 2024 to 2034, with about 720 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), Michigan statewide and metro estimates for SOC 49-3031. Licensing summary compiled from the No Michigan state license required for diesel mechanics (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 Michigan wages · Michigan 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.