About this program

This fully-loaded program develops the skills necessary to repair, inspect, and maintain diesel-powered highway equipment.

Learn about diesel truck preventative maintenance and service, and the theory and skills needed to perform vehicle inspection and engine tune-up. You'll become skilled in overhauling engines, transmissions, and rear differentials, as well as repairing air-brakes, chassis and suspensions.

Earn your certificate in just 10 months full-time, or two-years part-time. And when you graduate you'll be ready to take the Pennsylvania Vehicle Safety Inspection examinations.

Graduates of this program interested in more advanced training can continue on in the Diesel Technology Associate of Applied Science degree with just an additional year of study. 

Extensive Hands-On Program

50+

Newer Model Diesel Engines

Full and Part-time Options Available

Careers

Entry-level heavy-duty commercial truck preventative maintenance technician for:

  • Dealerships
  • Independent garages
  • Truck fleets
  • Leasing companies
Courses

At Penn College, we believe your educational experience should go beyond specialized skills. Real-world ready means taking a broader approach that builds communication skills, inspires collaboration, and encourages exploration of arts, history, and science.

​​Specialization requires in-depth knowledge and high-level proficiency. Students learn and apply major-specific concepts, skills, and methods.

  • DSM154Diesel Engine Technology
  • DSM116Diesel Engine Laboratory
  • DSM119Fuel Systems
  • DSM117Introduction to Hydraulics
  • DSM120Basic Electricity
  • DSM140Truck Tractor Chassis & Alignment
  • DSM141Heavy Duty Brake Systems
  • DSM142Powertrain & Brake Systems Lab
  • DSM146Commercial Truck Power Train & State Inspection

​Perspectives are points of view, offering a variety of ways of understanding, interacting, and influencing the world. Students identify, explain, and utilize the approaches used by academics and professionals to study, analyze, or understand problems, and offer solutions.

​​Foundations are the practical, intellectual, and social skills: communication, collaboration, critical and ethical thinking, quantitative thinking, and technological literacy that are crucial to every student at every stage of education and at every stage of life.

  • MTHP3 Select One Course: MTH123 or MTH011
  • ENLP1 Select One Course: ENL010 or ENL111

Next steps...

You're on your way to becoming a tomorrow maker.

Featured Video

Virtual Tour

Join instructor Chris Weaver and explore fully loaded training spaces where students get tons of hands-on experience like tearing down engines and rebuilding them to perfection. You’ll get a rundown of degree options, see the advanced training grounds for each, and check out the latest and greatest equipment.

Facilities

Modern Fully-Equipped Labs

Gain hands-on experience in advanced learning labs where you’ll work on equipment just like you can expect to see after graduation.  

While you're here, you'll have an opportunity to earn certifications in: 

  • Stationary Refrigeration (608)
  • Motor Vehicle Air-Conditioning (609)
  • Allison Transmission Certification
  • Level 1 Eaton Hybrid Certification
Tour Schedule

Seeing is believing.

Think Penn College might be a good fit for you? Make plans to visit and discover what hands-on learning is all about.

Feb 21

Undergraduate Open House

Saturday, February 219 AM - 3 PM

Register

Apr 26

Undergraduate Open House

Sunday, April 269 AM - 3 PM

Register

More tour dates are on the way.

But let's customize a tour for you now. Call, chat, or email for options.

Need a different date?

Let's customize a tour for you now. Call, chat, or email for options.

Contact

Admissions Office

Industry Partners

Work with experts to become an expert

Penn College's strong partnerships impact every step of your journey – from your first day in the classroom and labs, to career placement (oftentimes before graduation) and beyond.

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CAT Logo

Career Fair Connections

Penn College graduates are in high demand. Employer participation at the Career Fair is proof. Attracting 400+ organizations, this popular event is hosted twice per year and introduces students to all types of businesses from startups to Fortune 500 companies. 

Learn More About Career Fair
Student Life

Lead and put your skills to the test

Diesel Performance Technicians Association

Expand learning opportunities and meet others who share your interest in diesel performance.  

Learn more

Student Organizations at Penn College

Your college experience is about more than the classroom. Join one of 65+ clubs and organizations, or create your own.

Get Involved
Penn College News

Friday, October 10, 2025

Penn College Baja team competes in South Carolina

Although they didn’t achieve their typical top-10 finish, the Pennsylvania College of Technology team performed well at Baja SAE Carolina and is already working toward next season.

Wednesday, October 8, 2025

Diesel Performance Club’s ‘Accelerated Learning’ truck back on drag racing circuit

Pennsylvania College of Technology’s “Accelerated Learning” is at it again, and this time, the Diesel Performance Club’s 12,000-pound 1959 B-61 Mack truck advanced to the seventh-round finals of the Maple Grove Dragway’s 2025 Keystone Truckin’ Nationals. Narrowly missing the top prize by a margin of only .079 seconds, the crew has now celebrated two back-to-back years of success for a project 25 years in the making.

Wednesday, July 16, 2025

FedEx donates truck to Penn College diesel major

FedEx, a longtime supporter of Pennsylvania College of Technology’s diesel technology major, donated a 2014 Kenworth T680 semitrailer truck for students to utilize in a variety of hands-on diesel courses. “FedEx consistently supports our diesel technology program through advisory board, accreditation visits, diesel competitions and truck donations,” said Justin W. Beishline, corporate relations officer.

Study Abroad

Gain global experience

See the world via Williamsport. Take your education abroad and get hands-on experience learning about your industry on a global scale.

Learn More
More Information

Acceptance into this major is offered for the Fall semester only. This major has limited seat capacity. Acceptance is offered on a rolling basis until the seat capacity has been met. Students must accept their seat in the major by confirming their intent to enroll.

View general transfer information

Alternative Credit refers to academic credits earned through means other than traditional college course completion, including: credit by exam, articulation, proof of competency gained in high school, work/life experience, and advanced placement.

Visit the Alternative Credit Options page for requirements and procedures and for information on credit through Advanced Placement.

View the Diesel Equipment Technology Required Tools

Required for all labs:

  • uniform
  • leather work shoes or boots
  • glasses, safety, clear lens/black frames

Uniforms and tools are available for purchase through The College Store.

  • Mr. Don Casterline, '80, Owner, Casterline Diesel, Inc.
  • Mr. Christopher R Clary, Manager, Operations, IMG Midstream
  • Mr. Eric Faust, '09, Equipment Maintenance Foreman, Halliburton Energy Services
  • Mr. Zachary Gensimore, Regional Truck Service Operations Manager (East), Cleveland Brothers Equipment Co., Inc.
  • Mr. Christopher Malm, General Service Manager, Power Generation, West Branch Diesel
  • Mr. Frank Miller, Executive Vice President, Kenworth of PA
  • Mr. Daniel Mohlenhoff, '11, Working Foreman, Penn Power Group
  • Mr. Gregory A Moser, '99, Manager, FedEx Freight
  • Mr. Timothy B Moyer, Technical Trainer, Refrigeration, Penn Power Group
  • Mr. Eric Naugle, 2017, Equipment Manager, Kiewit
  • Mr. Jack Neidig, '86, Instructor, SUN Area Career & Technology Center
  • Mr. Justin E Ridings, Technical Training Specialist, Isuzu Commercial Truck of America, Inc.
  • Mr. Nevin Weaver, General Manager, Kenworth Of Pennsylvania
  • Mr. Douglas C Wetzel, '81, Engine Training Instructor, Cleveland Brothers Equipment Company, Inc.
  • Mr. Tyler White, '11, Service Manager, Ascendance Trucks Pennsylvania, LLC
  • Mr. Jeremy Wilson, General Manager, M&K Truck Centers
  • Mr. Tony Wiser, Director of Service, Motor Truck Equipment/ KW of PA