Diesel mechanic training in Colorado

10 diesel mechanic programs with costs, results and funding that can make them free

4 schools offer these diesel mechanic programs, and Colorado has approved every one for workforce funding. Each shows its price if you pay yourself and how past students did. One school runs 5 of these 10 programs, so the typical figures lean heavily on its prices and results.

Diesel mechanics inspect and repair buses and trucks and maintain diesel engines of every kind. Community colleges and technical schools offer certificates and degrees in diesel repair, employers may require or prefer certification, and some jobs need a commercial driver's license to test-drive trucks and buses.¹ Under federal rules, anyone paid to handle the refrigerant in a truck's cab air conditioning must be certified by an EPA-approved program.²

In Colorado, 7 of the 10 programs take students without a high school diploma and 3 ask for a diploma or equivalent.

By kind, the 10 programs here are diesel technician certificate or diploma (5 programs) and short course or single class (5 programs).

See the 10 programs

How much does diesel mechanic training cost in Colorado?

$5,294 to $25,850 is what most diesel mechanic programs in Colorado cost if you pay yourself

That is the middle half of the 10 programs with a price. All of them: $3,274 to $29,000

In the typical program

Finished the program: Not enough data; 3 programs report it; a typical figure needs 5
Working 6 months later: Not enough data; 3 programs report it; a typical figure needs 5
Earned a year, estimated: Not enough data; 3 programs report it; a typical figure needs 5
Length: Left out; The 10 figures filed fail our checks

Source: US Department of Labor, program year 2024 (July 2024 to June 2025). Only programs approved for workforce funding are listed; other schools in Colorado may also offer diesel mechanic training. How these figures are made

Is there free diesel mechanic training in Colorado?

Yes, if you qualify. WIOA (public workforce funding) can pay for any program on this page, in full or in part, depending on local limits.³⁴⁵
Ask an American Job Center whether you qualify, or call 1-877-872-5627.⁶ Before funding training, the center goes through an assessment and a career plan with you.⁵
Or pay yourself. Most diesel mechanic programs in Colorado cost $5,294 to $25,850. Prices on this page run from $3,274 to $29,000.

Who qualifies, and other ways to pay: financial aid, grants and the GI Bill

All 10 diesel mechanic programs in Colorado approved for WIOA funding

10 programs

Diesel technician certificate or diplomaIn personNo diploma needed
Diesel Power Mechanics
Community College of Aurora
Aurora
Accredited school
No diploma needed
Community College of Aurora, AuroraDiesel technician certificate or diploma · Accredited schoolIn person · No diploma needed
Earned a year, estimatedNot reported
Price if you pay yourself$15,748
Program website, Diesel Power Mechanics at Community College of Aurora
More details about Diesel Power Mechanics at Community College of Aurora
Finished
71%
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
$1,039
Students counted
79
Earned a year, estimated
Not reported
Price if you pay yourself
$15,748
Program website, Diesel Power Mechanics at Community College of Aurora
Short course or single classHybridNo diploma needed
Diesel Technology 3
Northeastern Junior College
Sterling
Accredited school
No diploma needed
Northeastern Junior College, SterlingShort course or single class · Accredited schoolHybrid · No diploma needed
Earned a year, estimated$38,600
Price if you pay yourself$16,401
More details about Diesel Technology 3 at Northeastern Junior College
Finished
86%
Working at 6 months
75%
Earned in a quarter
$9,655
Length
Left out
Cost of supplies
$3,600
Students counted
72
Earned a year, estimated
$38,600
Price if you pay yourself
$16,401
Diesel technician certificate or diplomaIn personNo diploma needed
Diesel Equipment Technology
Pickens Technical College
Aurora
Accredited school
No diploma needed
Pickens Technical College, AuroraDiesel technician certificate or diploma · Accredited schoolIn person · No diploma needed
Earned a year, estimatedNot reported
Price if you pay yourself$5,078
More details about Diesel Equipment Technology at Pickens Technical College
Finished
97%
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
None listed
Students counted
46
Earned a year, estimated
Not reported
Price if you pay yourself
$5,078
Short course or single classHybridNo diploma needed
Diesel Technology 2
Northeastern Junior College
Sterling
Accredited school
No diploma needed
Northeastern Junior College, SterlingShort course or single class · Accredited schoolHybrid · No diploma needed
Earned a year, estimated$53,500
Price if you pay yourself$5,942
More details about Diesel Technology 2 at Northeastern Junior College
Finished
Not reported
Working at 6 months
33%
Earned in a quarter
$13,376
Length
Left out
Cost of supplies
$1,800
Students counted
10
Earned a year, estimated
$53,500
Price if you pay yourself
$5,942
Short course or single classHybridNo diploma needed
Diesel Technology 5
Northeastern Junior College
Sterling
Accredited school
No diploma needed
Northeastern Junior College, SterlingShort course or single class · Accredited schoolHybrid · No diploma needed
Earned a year, estimated$53,500
Price if you pay yourself$5,942
More details about Diesel Technology 5 at Northeastern Junior College
Finished
Not reported
Working at 6 months
33%
Earned in a quarter
$13,376
Length
Left out
Cost of supplies
$1,800
Students counted
10
Earned a year, estimated
$53,500
Price if you pay yourself
$5,942
Diesel technician certificate or diplomaIn personHigh school diploma or equivalent
Advanced Diesel Technology
WyoTech
Laramie, WY
Accredited school
High school diploma or equivalent
WyoTech, Laramie, WYDiesel technician certificate or diploma · Accredited schoolIn person · High school diploma or equivalent
Classes are outside Colorado; Colorado approved the program for its funding.
Earned a year, estimatedNot reported
Price if you pay yourself$29,000
More details about Advanced Diesel Technology at WyoTech
Finished
Not reported
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
None listed
Students counted
112
Earned a year, estimated
Not reported
Price if you pay yourself
$29,000
Diesel technician certificate or diplomaIn personHigh school diploma or equivalent
Diesel Technology with High Performance Power Trains
WyoTech
Laramie, WY
Accredited school
High school diploma or equivalent
WyoTech, Laramie, WYDiesel technician certificate or diploma · Accredited schoolIn person · High school diploma or equivalent
Classes are outside Colorado; Colorado approved the program for its funding.
Earned a year, estimatedNot reported
Price if you pay yourself$29,000
More details about Diesel Technology with High Performance Power Trains at WyoTech
Finished
Not reported
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
None listed
Students counted
27
Earned a year, estimated
Not reported
Price if you pay yourself
$29,000
Diesel technician certificate or diplomaIn personHigh school diploma or equivalent
Diesel Technology and Management
WyoTech
Laramie, WY
Accredited school
High school diploma or equivalent
WyoTech, Laramie, WYDiesel technician certificate or diploma · Accredited schoolIn person · High school diploma or equivalent
Classes are outside Colorado; Colorado approved the program for its funding.
Earned a year, estimatedNot reported
Price if you pay yourself$29,000
More details about Diesel Technology and Management at WyoTech
Finished
Not reported
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
None listed
Students counted
14
Earned a year, estimated
Not reported
Price if you pay yourself
$29,000
Short course or single classHybridNo diploma needed
Diesel Technology 1
Northeastern Junior College
Sterling
Accredited school
No diploma needed
Northeastern Junior College, SterlingShort course or single class · Accredited schoolHybrid · No diploma needed
Earned a year, estimatedNot reported
Price if you pay yourself$3,274
More details about Diesel Technology 1 at Northeastern Junior College
Finished
Not reported
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
$250
Students counted
Not reported
Earned a year, estimated
Not reported
Price if you pay yourself
$3,274
Short course or single classHybridNo diploma needed
Diesel Technology 4
Northeastern Junior College
Sterling
Accredited school
No diploma needed
Northeastern Junior College, SterlingShort course or single class · Accredited schoolHybrid · No diploma needed
Earned a year, estimatedNot reported
Price if you pay yourself$3,689
More details about Diesel Technology 4 at Northeastern Junior College
Finished
Not reported
Working at 6 months
Not reported
Earned in a quarter
Not reported
Length
Left out
Cost of supplies
$900
Students counted
Not reported
Earned a year, estimated
Not reported
Price if you pay yourself
$3,689

How to pay for diesel mechanic training in Colorado

WIOA funding can pay for diesel mechanic training in Colorado

Every program on this page is approved for it. Whether you qualify, how much your local area pays and how to apply are on our page Does WIOA pay for job training?

Financial aid and grants for diesel mechanic training

Most students can get federal student aid for college, career school or trade school. A Federal Pell Grant, unlike a loan, usually doesn't have to be repaid. Ask the school whether its program qualifies.⁷⁸

GI Bill for diesel mechanic training

Veterans, service members and qualified dependents can use GI Bill benefits for non-college training programs.⁹

The program list does not show which programs accept these. Ask the school.

Quick facts: Diesel mechanic training in Colorado

lowest typical price among the states with enough programs to compare: 21st of 26
diesel mechanic programs here, against the typical state's 8: 10 vs 8

State comparisons use the same figures as the diesel mechanic training by state table: the middle program of each state, and only states with three or more schools for prices. Source: US Department of Labor, program year 2024 (July 2024 to June 2025).

Diesel mechanic training in Sterling, Laramie, Denver and other Colorado cities

Choosing an area filters the program list above.

Other training in Colorado

How diesel mechanic training compares with the rest of skilled trades: Trade school programs in Colorado

Where the Colorado diesel mechanic program numbers come from

Which Colorado diesel mechanic programs are on this list?

These are the diesel mechanic programs Colorado approved for WIOA funding (public workforce funding under the Workforce Innovation and Opportunity Act), as reported to the US Department of Labor for program year 2024 (July 2024 to June 2025). Each state keeps its approved programs on an eligible training provider list (ETPL).¹⁰ The list here covers programs approved as of June 30, 2025. Schools that never applied for approval are missing, so this is a part of what Colorado offers.

How the prices and results of Colorado diesel mechanic programs are measured

Prices are tuition and required fees for someone paying without workforce funding, as the school reported them; check the current price with the school. Results describe students who left each program in recent years, so they are no guarantee, and the yearly earnings are the reported quarter times four, an estimate. A program without a "Trained with WIOA funding" line may still take WIOA students. Where a field was left empty or withheld, the page says "Not reported", and "Left out" where a figure was filed but failed one of our checks; nothing is estimated to fill a gap. Where the numbers come from explains each figure in full.

How reliable are the Colorado figures?

The US Department of Labor's own results site lists Colorado among the states with "known data quality concerns".¹¹ The figures here are shown as the state reported them; check them with the school before you enroll.

Sources for the facts about diesel mechanic training in Colorado

Show the 11 sourcesHide the sources

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Diesel mechanic training in Colorado

How much does diesel mechanic training cost in Colorado?

Is there free diesel mechanic training in Colorado?

All 10 diesel mechanic programs in Colorado approved for WIOA funding

Diesel Power Mechanics

Diesel Technology 3

Diesel Equipment Technology

Diesel Technology 2

Diesel Technology 5

Advanced Diesel Technology

Diesel Technology with High Performance Power Trains

Diesel Technology and Management

Diesel Technology 1

Diesel Technology 4