DSL · WA

Diesel Mechanic Schools in Washington

11 schools in Washington reported diesel mechanic graduates for 2023-24, 287 awards in all. Sorted by number of graduates.

Bates Technical College

1101 S Yakima Ave, Tacoma, WA · Public, 4-year

DSL 147
WELD 44
HVAC 31
CARP 20
ELEC 19
CNST 6
BODY 5
AUTO 5
CNC 2
CDL 1

Grads 2023-24: 147 diesel mechanic
In-state tuition/yr 2025-26: $5,874
Median pay 10 yrs, all: $56,009

Bellingham Technical College

3028 Lindbergh Ave, Bellingham, WA · Public, 4-year

DSL 45
WELD 65
ELEC 64
AUTO 36
CNC 21
HVAC 10
BODY 7

Grads 2023-24: 45 diesel mechanic
In-state tuition/yr 2025-26: $5,223
Median pay 10 yrs, all: $53,063

Walla Walla Community College

500 Tausick Way, Walla Walla, WA · Public, 4-year

DSL 20
HVAC 54
WELD 50
CNST 35
CDL 34
AUTO 16
BODY 2

Grads 2023-24: 20 diesel mechanic
In-state tuition/yr 2025-26: $5,442
Median pay 10 yrs, all: $48,220

Spokane Community College

1810 North Greene Street, Spokane, WA · Public, 4-year

DSL 19
AUTO 225
A&P 74
WELD 48
CARP 17
BODY 11
HVAC 10
CNC 9
ELEC 1

Grads 2023-24: 19 diesel mechanic
In-state tuition/yr 2025-26: $5,625
Median pay 1 yr out: $45,066 associate degree

Clark College

1933 Fort Vancouver Way, Vancouver, WA · Public, 4-year

DSL 19
WELD 88
AUTO 17

Grads 2023-24: 19 diesel mechanic
In-state tuition/yr 2025-26: $5,366
Median pay 1 yr out: $61,100 associate degree

Centralia College

600 Centralia College Blvd., Centralia, WA · Public, 4-year

DSL 17
CNST 79
CDL 21
WELD 10

Grads 2023-24: 17 diesel mechanic
In-state tuition/yr 2025-26: $5,452
Median pay 10 yrs, all: $45,534

Skagit Valley College

2405 E. College Way, Mount Vernon, WA · Public, 4-year

DSL 7
AUTO 9
WELD 9

Grads 2023-24: 7 diesel mechanic
In-state tuition/yr 2025-26: $5,700
Median pay 10 yrs, all: $50,327

Lake Washington Institute of Technology

11605 132nd Ave NE, Kirkland, WA · Public, 4-year

DSL 4
BODY 56
AUTO 51
WELD 32
CNC 28

Grads 2023-24: 4 diesel mechanic
In-state tuition/yr 2025-26: $10,701
Median pay 10 yrs, all: $56,471

Lower Columbia College

1600 Maple Street, Longview, WA · Public, 4-year

DSL 4
WELD 10
AUTO 6
CNC 5

Grads 2023-24: 4 diesel mechanic
In-state tuition/yr 2025-26: $4,795
Median pay 10 yrs, all: $45,498

South Seattle College

6000 16th Ave SW, Seattle, WA · Public, 4-year

DSL 4
AUTO 231
A&P 105
WELD 55

Grads 2023-24: 4 diesel mechanic
In-state tuition/yr 2025-26: $4,935
Median pay 10 yrs, all: $58,451

Grays Harbor College

1620 Edward P Smith Drive, Aberdeen, WA · Public, 4-year

DSL 1
WELD 14
CDL 11
LINE 7
CARP 5
AUTO 2

Grads 2023-24: 1 diesel mechanic
In-state tuition/yr 2025-26: $5,756
Median pay 10 yrs, all: $44,277

Diesel Mechanic Schools by city

Licensing in Washington

Requirements are set by Washington (and sometimes your city), not by the school. Look up the current rules for diesel technicians on CareerOneStop's License Finder for Washington. General path: Diesel Mechanic Schools overview.

BLS puts the median annual wage for bus and truck mechanics and diesel engine specialists in Washington at $77,900 (middle 80% from $54,720 to $102,800), May 2025. BLS Occupational Outlook Handbook.

Questions, answered from the data

How many diesel mechanic schools are there in Washington?

11 schools in Washington reported diesel mechanic graduates to the Department of Education for 2023-24, 287 awards in all (185 undergraduate certificates, 102 associate degrees).

How much does a diesel technician make in Washington?

The BLS median annual wage for bus and truck mechanics and diesel engine specialists in Washington was $77,900 in May 2025; the lowest-paid 10% earned under $54,720 and the top 10% over $102,800.

All trade schools in Washington

Sources: IPEDS Completions 2023-24 (C2024_A) and Directory (HD2024), NCES; College Scorecard institution data (2025-26 charges, released Nov 2, 2026) and field-of-study data (Oct 15, 2026); FMCSA Training Provider Registry (as of 2026-11-02); BLS Occupational Employment and Wage Statistics, May 2025. Checked 2026-11-02. How we build this list.