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Diesel mechanic training in Seattle, Washington

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

7 schools offer these diesel mechanic programs with classes in the Seattle-Tacoma-Bellevue area, and every one is approved for workforce funding. Each shows its price if you pay yourself and how past students did.

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 Seattle, 3 of the 13 programs take students without a high school diploma, 8 ask for a diploma or equivalent and 2 ask for earlier courses first.

By kind, the 13 programs here are diesel mechanic apprenticeship (5 programs), diesel technology (associate degree, 3 programs), short course or single class (3 programs), diesel technician certificate or diploma (1 program), and 1 more of one other kind.

See the 13 programs

All 31 diesel mechanic programs in Washington, including online programs

How much does diesel mechanic training cost in Seattle?

$5,928 to $9,895 is what most diesel mechanic programs in Seattle cost if you pay yourself

That is the middle half of the 6 programs with a price. All of them: $4,496 to $11,700

In the typical program

Finished the program
70%
Working 6 months later
59%
Earned a year, estimated
about $39,400
Length
65 to 200 weeks

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

Is there free diesel mechanic training in Seattle?

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

All 13 diesel mechanic programs in Seattle approved for WIOA funding

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13 programs

  • Diesel technician certificate or diplomaIn personPrerequisite courses

    Diesel Service Technician

    Bates Technical College

    Tacoma

    Accredited school

    Prerequisite courses

    Bates Technical College, TacomaDiesel technician certificate or diploma · Accredited schoolIn person · Prerequisite courses

    Earned a year, estimated$39,400
    Price if you pay yourself$4,496
    Program website, Diesel Service Technician at Bates Technical College
    More details about Diesel Service Technician at Bates Technical College
    Finished
    70%
    Working at 6 months
    59%
    Earned in a quarter
    $9,851
    Length
    28 weeks, 16 hours a week
    Cost of supplies
    None listed
    Students counted
    49
    Earned a year, estimated
    $39,400
    Price if you pay yourself
    $4,496
    Program website, Diesel Service Technician at Bates Technical College

  • Diesel technology (associate degree)In personHigh school diploma or equivalent

    Diesel & Heavy Equipment Technician

    Bates Technical College

    Tacoma

    Accredited school

    High school diploma or equivalent

    Bates Technical College, TacomaDiesel technology (associate degree) · Accredited schoolIn person · High school diploma or equivalent

    Earned a year, estimated$39,400
    Price if you pay yourself$5,865
    Program website, Diesel & Heavy Equipment Technician at Bates Technical College
    More details about Diesel & Heavy Equipment Technician at Bates Technical College
    Finished
    70%
    Working at 6 months
    59%
    Earned in a quarter
    $9,851
    Length
    65 weeks, 16 hours a week
    Cost of supplies
    $2,341
    Students counted
    49
    Earned a year, estimated
    $39,400
    Price if you pay yourself
    $5,865
    Program website, Diesel & Heavy Equipment Technician at Bates Technical College

  • Short course or single classIn personNo diploma needed

    Diesel Engines

    Bates Technical College

    Tacoma

    Accredited school

    No diploma needed

    Bates Technical College, TacomaShort course or single class · Accredited schoolIn person · No diploma needed

    Earned a year, estimated$39,400
    Price if you pay yourselfNot reported
    Program website, Diesel Engines at Bates Technical College
    More details about Diesel Engines at Bates Technical College
    Finished
    70%
    Working at 6 months
    59%
    Earned in a quarter
    $9,851
    Length
    Not reported
    Cost of supplies
    Not reported
    Students counted
    49
    Earned a year, estimated
    $39,400
    Price if you pay yourself
    Not reported
    Program website, Diesel Engines at Bates Technical College

  • Short course or single classIn personNo diploma needed

    Heavy Duty Truck Drive Trains

    Bates Technical College

    Tacoma

    Accredited school

    No diploma needed

    Bates Technical College, TacomaShort course or single class · Accredited schoolIn person · No diploma needed

    Earned a year, estimated$39,400
    Price if you pay yourselfNot reported
    Program website, Heavy Duty Truck Drive Trains at Bates Technical College
    More details about Heavy Duty Truck Drive Trains at Bates Technical College
    Finished
    70%
    Working at 6 months
    59%
    Earned in a quarter
    $9,851
    Length
    Not reported
    Cost of supplies
    Not reported
    Students counted
    49
    Earned a year, estimated
    $39,400
    Price if you pay yourself
    Not reported
    Program website, Heavy Duty Truck Drive Trains at Bates Technical College

  • Short course or single classIn personNo diploma needed

    Truck and Heavy Equipment Electrical Systems

    Bates Technical College

    Tacoma

    Accredited school

    No diploma needed

    Bates Technical College, TacomaShort course or single class · Accredited schoolIn person · No diploma needed

    Earned a year, estimated$39,400
    Price if you pay yourselfNot reported
    Program website, Truck and Heavy Equipment Electrical Systems at Bates Technical College
    More details about Truck and Heavy Equipment Electrical Systems at Bates Technical College
    Finished
    70%
    Working at 6 months
    59%
    Earned in a quarter
    $9,851
    Length
    Not reported
    Cost of supplies
    Not reported
    Students counted
    49
    Earned a year, estimated
    $39,400
    Price if you pay yourself
    Not reported
    Program website, Truck and Heavy Equipment Electrical Systems at Bates Technical College

  • Diesel mechanic apprenticeshipHybridHigh school diploma or equivalent

    Coach Heavy Duty Mechanic

    Pierce Transit/ATU Local #758 Apprenticeship Committee

    Lakewood

    High school diploma or equivalent

    Pierce Transit/ATU Local #758 Apprenticeship Committee, LakewoodDiesel mechanic apprenticeshipHybrid · High school diploma or equivalent

    Earned a year, estimated$88,400
    Price if you pay yourselfNot reported
    Program website, Coach Heavy Duty Mechanic at Pierce Transit/ATU Local #758 Apprenticeship Committee
    More details about Coach Heavy Duty Mechanic at Pierce Transit/ATU Local #758 Apprenticeship Committee
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    $22,100
    Length
    200 weeks, 40 hours a week
    Cost of supplies
    Not reported
    Students counted
    14
    Earned a year, estimated
    $88,400
    Price if you pay yourself
    Not reported
    Program website, Coach Heavy Duty Mechanic at Pierce Transit/ATU Local #758 Apprenticeship Committee

  • Heavy equipment mechanicIn personPrerequisite courses

    Diesel & Heavy Equipment Tech

    South Seattle College

    Seattle

    Accredited school

    Prerequisite courses

    South Seattle College, SeattleHeavy equipment mechanic · Accredited schoolIn person · Prerequisite courses

    Earned a year, estimatedNot reported
    Price if you pay yourself$6,117
    Program website, Diesel & Heavy Equipment Tech at South Seattle College
    More details about Diesel & Heavy Equipment Tech at South Seattle College
    Finished
    82%
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    65 weeks, 13 hours a week
    Cost of supplies
    None listed
    Students counted
    13
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $6,117
    Program website, Diesel & Heavy Equipment Tech at South Seattle College

  • Diesel technology (associate degree)In personHigh school diploma or equivalent

    Diesel and Heavy Equipment Tech

    South Seattle College

    Seattle

    Accredited school

    High school diploma or equivalent

    South Seattle College, SeattleDiesel technology (associate degree) · Accredited schoolIn person · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourself$6,588
    Program website, Diesel and Heavy Equipment Tech at South Seattle College
    More details about Diesel and Heavy Equipment Tech at South Seattle College
    Finished
    82%
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    70 weeks, 19 hours a week
    Cost of supplies
    None listed
    Students counted
    13
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $6,588
    Program website, Diesel and Heavy Equipment Tech at South Seattle College

  • Diesel mechanic apprenticeshipHybridHigh school diploma or equivalent

    Trailer, Container, and Van Repair Mechanic

    Northwest Machinists Apprenticeship Committee

    Seattle

    High school diploma or equivalent

    Northwest Machinists Apprenticeship Committee, SeattleDiesel mechanic apprenticeshipHybrid · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourselfNot reported
    Program website, Trailer, Container, and Van Repair Mechanic at Northwest Machinists Apprenticeship Committee
    More details about Trailer, Container, and Van Repair Mechanic at Northwest Machinists Apprenticeship Committee
    Finished
    100%
    Working at 6 months
    100%
    Earned in a quarter
    Not reported
    Length
    200 weeks, 40 hours a week
    Cost of supplies
    Not reported
    Students counted
    12
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    Not reported
    Program website, Trailer, Container, and Van Repair Mechanic at Northwest Machinists Apprenticeship Committee

  • Diesel technology (associate degree)HybridHigh school diploma or equivalent

    Diesel & Heavy Equipment Technician

    Lake Washington Institute of Technology

    Kirkland

    Accredited school

    High school diploma or equivalent

    Lake Washington Institute of Technology, KirklandDiesel technology (associate degree) · Accredited schoolHybrid · High school diploma or equivalent

    Earned a year, estimated$48,600
    Price if you pay yourself$10,997
    Program website, Diesel & Heavy Equipment Technician at Lake Washington Institute of Technology
    More details about Diesel & Heavy Equipment Technician at Lake Washington Institute of Technology
    Finished
    90%
    Working at 6 months
    100%
    Earned in a quarter
    $12,144
    Length
    60 weeks, 20 hours a week
    Cost of supplies
    None listed
    Students counted
    11
    Earned a year, estimated
    $48,600
    Price if you pay yourself
    $10,997
    Program website, Diesel & Heavy Equipment Technician at Lake Washington Institute of Technology

  • Diesel mechanic apprenticeshipHybridHigh school diploma or equivalent

    Heavy Duty Equipment Mechanic

    Northwest Machinists Apprenticeship Committee

    Seattle

    High school diploma or equivalent

    Northwest Machinists Apprenticeship Committee, SeattleDiesel mechanic apprenticeshipHybrid · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourself$11,700
    Program website, Heavy Duty Equipment Mechanic at Northwest Machinists Apprenticeship Committee
    More details about Heavy Duty Equipment Mechanic at Northwest Machinists Apprenticeship Committee
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    200 weeks, 40 hours a week
    Cost of supplies
    None listed
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    $11,700
    Program website, Heavy Duty Equipment Mechanic at Northwest Machinists Apprenticeship Committee

  • Diesel mechanic apprenticeshipIn personHigh school diploma or equivalent

    Coach Heavy Diesel Mechanic

    Community Transit/I.A.M. District 160 Apprenticeship Committee

    Everett

    High school diploma or equivalent

    Community Transit/I.A.M. District 160 Apprenticeship Committee, EverettDiesel mechanic apprenticeshipIn person · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourselfNot reported
    More details about Coach Heavy Diesel Mechanic at Community Transit/I.A.M. District 160 Apprenticeship Committee
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    200 weeks, 40 hours a week
    Cost of supplies
    Not reported
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    Not reported

  • Diesel mechanic apprenticeshipIn personHigh school diploma or equivalent

    Heavy Duty Bus Mechanic

    King County Metro Transit/ATU 587 Apprenticeship Committee

    Tukwila

    High school diploma or equivalent

    King County Metro Transit/ATU 587 Apprenticeship Committee, TukwilaDiesel mechanic apprenticeshipIn person · High school diploma or equivalent

    Earned a year, estimatedNot reported
    Price if you pay yourselfNot reported
    More details about Heavy Duty Bus Mechanic at King County Metro Transit/ATU 587 Apprenticeship Committee
    Finished
    Not reported
    Working at 6 months
    Not reported
    Earned in a quarter
    Not reported
    Length
    200 weeks, 40 hours a week
    Cost of supplies
    Not reported
    Students counted
    Not reported
    Earned a year, estimated
    Not reported
    Price if you pay yourself
    Not reported

How to pay for diesel mechanic training in Seattle

WIOA funding can pay for diesel mechanic training in Seattle

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.

Other training in Seattle

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

Where the Seattle diesel mechanic program numbers come from

Which Seattle diesel mechanic programs are on this list?

These are the diesel mechanic programs with classes in the Seattle-Tacoma-Bellevue area that are 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. Online programs are left out here; they are on the Washington page. Schools that never applied for approval are missing, so this is a part of what the area offers.

How the prices and results of Seattle 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.

Sources for the facts about diesel mechanic training in Seattle

Show the 10 sourcesHide the sources
  1. US Bureau of Labor Statistics, Occupational Outlook Handbook: Diesel Service Technicians and Mechanics
  2. Electronic Code of Federal Regulations: 40 CFR part 82, subpart B, Servicing of motor vehicle air conditioners
  3. US Department of Labor, TrainingProviderResults.gov: About This Site
  4. US Department of Labor: WIOA Adult Program
  5. Code of Federal Regulations, title 20, part 680, sections 680.220, 680.230 and 680.310: career services before training, other grants such as Pell Grants first, and limits on Individual Training Accounts (GovInfo, 2024 edition)
  6. US Department of Labor: American Job Centers
  7. US Department of Education, Federal Student Aid: Eligibility for Federal Student Aid
  8. US Department of Education, Federal Student Aid: Don't Miss Out on Federal Pell Grants
  9. US Department of Veterans Affairs: GI Bill benefits for non-college degree programs
  10. US Department of Labor, Training and Employment Guidance Letter 8-19, Attachment I: Requirements for Training Providers, Program Eligibility, and the State Eligible Training Provider (ETP) List