A student works on a diesel engine in the Transportation center

Diesel Maintenance Technician - Technical Diploma

This one-year technical diploma will provide students with the basic entry level skills for successful employment as a maintenance technician in a diesel heavy equipment or truck repair facility.

Program Code: 304122
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Launch your career in diesel mechanics

Just think: You could be prepared for an entry-level career in diesel and heavy equipment maintenance in less than a year.

With this technical diploma, you'll gain hands-on skills with hydraulic, chassis, steering, suspension, brake, and electronic systems – the skills employers are looking for.

Advancement opportunities: All classes in this program are part of our two-year diesel programs (see "Follow Your Path" below). So when you're ready to increase your employment and earning potential, continue your education whenever it fits your schedule!

Program Costs & Financial Aid

See costs of tuition, books, and supplies.

This program is fully eligible for financial aid.

Estimates based on in-state residency. Learn more about tuition and fees.

Explore Locations

Offered At:

Follow Your Path

Credits from this technical diploma apply toward the following technical degree(s):

Diesel Medium and Heavy Truck Technician, 314128

Credits from this technical diploma apply toward the following associate degree(s):

Diesel Medium and Heavy Truck Technology, 104123

Credits from this technical diploma apply toward the following technical degree(s):

Diesel Heavy Equipment Technician, 314126

Credits from this technical diploma apply toward the following associate degree(s):

Diesel Heavy Equipment Technology, 104124


  • Day
  • Full-time

How do I get started in this program?

Requirements for Program Entry

  • Apply at www.nwtc.edu/apply.
  • Submit the following to transcripts@nwtc.edu: High school transcript (or GED/HSED transcript). College transcript.
  • If your cumulative GPA is below 2.6, complete or submit a placement evaluation.
  • Tip! Our admission advisors will assist you through every step. Have questions? Connect with NWTC Admissions at start@nwtc.edu or 920-498-5444.

What are my courses?


Students following the study plan below will complete the Automotive Maintenance Technician technical diploma in the number of semesters shown.

Total Credits 25
  • Curriculum Note: Students must earn a "C" or better in 31-804-304 Vocational Math A
  • The credit for 10-890-101, College 101, is an Institutional Requirement for graduation. Consequently, it is not part of the program credit requirements, but must be passed with a C or better.

Program Outcomes

  • Apply hydraulic systems fundamentals.
  • Manage chassis, steering, and suspension systems.
  • Perform required preventative maintenance.
  • Use welding and machine tools.
  • Maintain brake systems.
  • Analyze electronic/electrical systems.
  • Interpret schematic drawings.
  • Service vehicle systems.
  • Practice personal and professional work habits.
  • Document complaint, cause and correction.

What careers are in my future?


Graduate Employment

with 75% in field

Employment Potential

A graduate of the program will have the potential for employment in the following areas:

  • Diesel Service Technician
  • Diesel Mechanic Level 1
  • Diesel Technician Level 1
  • Fleet Mechanic
  • Diesel Sales
  • Diesel Parts Technician
  • Diesel Technician Apprentice
  • Diesel Set-Up Specialist

Classes wherever you have an internet connection. 

  • An in-person career experience, such as an internship, practicum, or credit for prior learning, may be required.
  • Some online courses may be held at specific dates/times.
Classes between the hours of 6:00 a.m. and 5:30 p.m.
Classes between the hours of 5:30 p.m. and 10:30 p.m.
A combination of online classes and Saturday and/or Sunday classes.
12 or more credits per term.
Fewer than 12 credits per term.