Do diesel mechanics need a license in Wisconsin?

No statewide license is required for diesel mechanics in Wisconsin. Most employers expect industry certifications such as ASE or OEM certification.

What apprenticeships are available for diesel mechanics in Wisconsin?

In Wisconsin, registered apprenticeships are administered through the Wisconsin Bureau of Apprenticeship Standards - Registered Apprenticeships, which works with employers and trade union locals to register programs. See the apprenticeship section above for office contact details.

How to Become a Diesel Mechanic in Wisconsin (2026)

Q: How long does diesel mechanic training take in Wisconsin?

Most people become a Diesel Mechanic in Wisconsin through a postsecondary automotive, diesel, motorcycle, marine, or collision program plus ASE or OEM credentials. This is not a default RAPIDS apprenticeship.

Q: How much do diesel mechanics earn in Wisconsin?

According to the U.S. Bureau of Labor Statistics OEWS data (May 2025), diesel mechanics in Wisconsin earned a median annual wage of approximately $62,450. Employment concentration in Wisconsin is about 1.23 times the national average for this occupation.

Q: What is the job outlook for diesel mechanics in Wisconsin?

Wisconsin currently employs approximately 6,750 workers, and the U.S. Bureau of Labor Statistics projects 2.4% national employment change for this occupation from 2024 to 2034.

Updated September 2, 2026 | TradeCareerPath Editorial Team

Wisconsin bus and truck mechanics and diesel engine specialists earn a median annual wage of $62,450 ($30.02/hr) according to U.S. Bureau of Labor Statistics OEWS data (May 2025), with about 6,750 workers employed statewide. The state median is approximately 1.1% above the national median of $61,770 for the same occupation.

Key Takeaways

Median annual pay: $62,450 ($30.02/hr)
25th percentile: $52,040 per year
75th percentile: $74,800 per year
Top 10% earn: more than $82,210 per year
Entry-level (bottom 10%): under $45,250 per year
Workers employed in Wisconsin: 6,750
Versus national median: 1.1% above the U.S. median of $61,770
Job concentration: Location quotient 1.23 - this occupation is more concentrated in Wisconsin than the national average

Source: BLS Occupational Employment and Wage Statistics (OEWS), May 2025. Last reviewed September 2, 2026.

Wisconsin employs about 6,750 diesel mechanics earning a median $62,450 a year (BLS OEWS, May 2025). Training as a Diesel Mechanic here means completing a postsecondary automotive, diesel, motorcycle, marine, or collision program plus ASE or OEM credentials. This is not a default RAPIDS apprenticeship.

Key Facts

Median wage (Wisconsin): $62,450/yr (Source: BLS OEWS, 2025)
Employed in Wisconsin: 6,750 workers (Source: BLS OEWS, 2025)
Location quotient: 1.23x U.S. average (Source: BLS OEWS, 2025)
Projected growth: 2.4% (2024-2034) (Source: BLS Employment Projections, 2024)

At a Glance

Training paths: trade-school or community-college program in the specialty (find programs)
Typical timeline: a postsecondary automotive, diesel, motorcycle, marine, or collision program plus ASE or OEM credentials. This is not a default RAPIDS apprenticeship
Exam: ASE or OEM certification
Median wage (Wisconsin): $62,450 per year ¹

Quick Answers About How to Become a Diesel Mechanic in Wisconsin

How to become a Diesel Mechanic in Wisconsin? Complete a postsecondary automotive, diesel, motorcycle, marine, or collision program plus ASE or OEM credentials. This is not a default RAPIDS apprenticeship. Confirm credential rules with the program and employer.

How long does it take? Most people finish a postsecondary automotive, diesel, motorcycle, marine, or collision program plus ASE or OEM credentials. This is not a default RAPIDS apprenticeship. Confirm current hour totals with the program and employer.

Do I need a license in Wisconsin? Most states do not require a statewide occupational license. Employers typically expect ASE or OEM certification. See the licensing section below.

What do diesel mechanics earn in Wisconsin? The median annual wage for diesel mechanics in Wisconsin is $62,450 according to BLS data. Entry-level wages start around $45,250 and experienced professionals can earn $82,210 or more ¹.

How to Become a Diesel Mechanic in Wisconsin

Meet program entry rules. Programs typically require a high school diploma or GED.
Complete a specialty program. Finish an automotive, diesel, motorcycle, marine, or collision program. Some union shops use apprenticeships; the default national path is a certificate plus ASE, not DAS as the only option.
Earn ASE or OEM credentials. Pass ASE tests or OEM training the employer requires. Some states add a separate smog or emissions credential; it is not the whole mechanic license.

Steps and hour totals vary by credential level; confirm current requirements with the program and employer before you enroll.

Diesel Mechanic License Requirements in Wisconsin

Most states do not license auto, diesel, motorcycle, marine, or collision techs as a statewide journeyman card. Employers expect ASE or OEM credentials. Some states add a smog or emissions credential.

Typical path

Complete a specialty program.
Earn ASE or OEM credentials.
Add a state smog or emissions credential only if that state and the job require one.

Hour totals, fees, and reciprocity rules change. Confirm current requirements with the employer before you enroll.

Diesel Mechanic Apprenticeship Information in Wisconsin

Apprenticeships combine paid on-the-job training with classroom instruction and typically last 3 to 5 years. Wisconsin’s apprenticeship program is administered by the Wisconsin Bureau of Apprenticeship Standards - Registered Apprenticeships ³.

Contact Information:

Office: State of Wisconsin Department of Workforce Development Bureau of Apprenticeship Standards
Address: 201 E Washington Ave, Madison, WI 53707
Phone: (608) 733-3930
Email: [email protected]

Diesel Mechanic Wages by Metro Area in Wisconsin

Bus and Truck Mechanics and Diesel Engine Specialists Wages by Metro Area in Wisconsin

According to the Bureau of Labor Statistics ( OES data), bus and truck mechanics and diesel engine specialists wages in Wisconsin vary by metro area.

Metro Area	Employment	Median Annual Wage	Avg. Annual Wage	Entry Level (10th pctile)	Experienced (90th pctile)
Minneapolis-St. Paul-Bloomington	4,290	$73,730	$71,900	$51,390	$94,110
Milwaukee-Waukesha	1,380	$62,920	$65,490	$46,710	$83,290
Madison	840	$63,850	$64,440	$45,500	$81,160
Green Bay	430	$60,860	$63,810	$45,760	$81,390
Duluth	370	$68,240	$70,780	$49,270	$90,120
Racine-Mount Pleasant	290	$64,770	$64,240	$46,730	$76,750
Wausau	280	$59,350	$57,560	$36,370	$76,890
Appleton	270	$63,860	$64,310	$44,320	$80,150
Eau Claire	270	$62,400	$62,980	$44,470	$78,330
La Crosse-Onalaska	260	$61,100	$62,890	$45,300	$77,570
Oshkosh-Neenah	260	$65,400	$67,370	$46,910	$88,850
Janesville-Beloit	240	$67,140	$68,750	$47,310	$87,300
Kenosha	190	$59,940	$61,000	$46,070	$76,900
Fond du Lac	120	$62,560	$62,240	$43,920	$78,250
Sheboygan	110	$59,760	$60,590	$46,770	$76,630

Wages reflect survey data and vary based on experience, credentials, employer, and local market conditions. Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May .

Frequently Asked Questions

What is the job outlook for diesel mechanics in Wisconsin? Wisconsin currently employs approximately 6,750 diesel mechanics ¹. Nationally, diesel mechanic employment is projected to grow 2.4% from 2024 to 2034 ².

What training programs are available in Wisconsin? Options include trade schools, community colleges, and apprenticeship programs. Use the school finder above to search for programs in Wisconsin. You can also contact the Wisconsin Bureau of Apprenticeship Standards - Registered Apprenticeships for apprenticeship opportunities.

How much do diesel mechanics earn in Wisconsin compared to the national average? The median annual wage for diesel mechanics in Wisconsin is $62,450, which is $1,810 above the national median of $60,640 according to BLS data ¹.

In Wisconsin

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Citations

About this guide: Researched and written by the TradeCareerPath Editorial Team. Our editorial team researches and sources every trade school and career guide using federal labor and education data, including BLS OEWS and Employment Projections, DOL apprenticeship records, IPEDS, College Scorecard, and state licensing boards. We follow the editorial standards documented at /editorial-policy/.

References

Bureau of Labor Statistics - Occupational Employment and Wage Statistics: https://www.bls.gov/oes/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Bureau of Labor Statistics - Employment Projections: https://www.bls.gov/emp/ ↩︎ ↩︎
Wisconsin Bureau of Apprenticeship Standards - Registered Apprenticeships: https://dwd.wisconsin.gov/apprenticeship/appr_stats/active_wtt.pdf ↩︎

Data sources

Figures on this page are sourced from the federal and state datasets below. Methodology: how we rank and source data.

Data	Provider	Vintage
Occupational Employment and Wage Statistics (OEWS)	U.S. Bureau of Labor Statistics	May 2025
Employment Projections	U.S. Bureau of Labor Statistics	2024-2034
Integrated Postsecondary Education Data System	National Center for Education Statistics (IPEDS)	2024
College Scorecard (school-level outcomes)	U.S. Department of Education	latest release
College Scorecard (field-of-study earnings)	U.S. Department of Education	latest release (updated 2026-06-12)
Occupational licensing requirements	CareerOneStop (U.S. Department of Labor)	latest release (updated 2026-02-22)
Registered apprenticeship programs	CareerOneStop / Apprenticeship.gov (U.S. Department of Labor)	latest release (updated 2025-10-25)
O*NET occupation profiles (skills, tasks, tools, job zones)	U.S. Department of Labor (O*NET / Employment & Training Admin.)	O*NET 29.1 (updated 2026-06-13)