Diesel Heavy Equipment Technology Associate Degree

Diesel Heavy Equipment Repair

Program Code: 104124

Highly skilled technicians are needed to diagnose, service, and repair a variety of heavy equipment such as over-the-road trucks, off-the-road construction equipment, agricultural equipment, and potentially stationary power supply engines. As a graduate of the Diesel Heavy Equipment Technology associate degree program, you'll not only gain such high-tech skills and hands-on experience, you'll be prepared for management, ownership, supervisory level positions, and advanced educational options. Career opportunities include diesel and heavy equipment technician, related specialist technician, related parts support manager, industry related service manager/supervisor, industry related sales representative, business owner, and educational trainer. This program is accredited by The AED Foundation.

Follow Your Path

Some credits from the following technical diploma(s) apply toward this associate degree:
• Diesel Heavy Equipment Technician, 314126


Employment Potential

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

Diesel Heavy Equipment Technician: diagnoses, services, and repairs a variety of heavy equipment ranging from over-the-road trucks, off-road construction equipment, agricultural equipment, and potentially stationary power supply engines.

Related Specialist Technician: diagnoses, services, and repairs fuel injection systems, hydraulics systems, trailer service and other specialty areas.

Related Parts Support Manager: manages a parts department within a repair facility.

Industry Related Service Manager-Supervisor: manages technician performance, directs work flow, tracks work progress, coordinates service business profitability, reports to Operations level management.

Industry Related Sales Representative: sales position within the diesel and heavy equipment industry or support business to the industry.

Business Owner: owns own business related to the diesel and heavy equipment or support business.

Educational Trainer: With additional study and transfer to a four-year baccalaureate college, a graduate could pursue a four-year degree in secondary, post-secondary or technical training industry.


Requirements for Program Entry

• Completed application.
• High school transcript or equivalent .(For a list of equivalents, go to
• High school background in math, science and technology education would be beneficial.
• To be admitted to this program, learners must achieve a prior cumulative high school or college grade point average of 2.6 or higher OR a satisfactory academic skills assessment score. College grade point average must be based on 15 credits or more. To learn more about starting this program, please contact an academic advisor at (920) 498-5444 or (888) 385-6982.
• Additionally, admittance into the program will require an interview with the program Academic Advisor or Associate Dean.

Students following the study plan below will complete the Diesel Heavy Equipment Technology associate degree in the number of semesters shown.
10-890-101 COLLEGE 101 ...Students will utilize digital tools and resources to assess, explore, practice, apply, and evaluate both employability and learning skills. By establishing NWTC cultural values as hallmarks of success in academic, career, and personal settings the course encourages reflective, personalized development of a growth mindset and emphasizes the importance of making wise choices. To maximize the return on investment, students should take this course in their first semester as it identifies key expectations (hidden rules) of higher learning and professional employment.
10-412-125 TRANSPORTATION SERVICE OPERATIONS ...introduces the auto and diesel shop environment, safety and the use of basic hand/power tools in accordance with industry standards, use of manufacturer's service information and literature, handling hazardous materials, and emphasizes general shop safety and general shop practices.
10-412-100 DIESEL LAB OPERATIONS ...diesel shop safety, basic equipment operation, rigging and lifting, hand and power precision tools, fasteners and hazard material handling procedures.
10-412-170 WELDING TRANSPORTATION 1 ...focuses on welding and cutting safety; develops skills in welding and cutting of metals used in the transportation trades. Methods of welding include gas metal arc welding (MIG) in the horizontal, vertical, and overhead positions. Methods of cutting include oxy-fuel and plasma arc cutting of metals. Students will learn to set up and maintain welding equipment and weld and cut a variety of types and thicknesses of materials commonly used in the transportation trades.
10-412-171 TRANSPORTATION WELDING 2 ...This course provides the opportunity for the learner to develop the knowledge, skills, process, and understanding of GMAW (MIG) welding equipment set-up, use, and maintenance and GMAW (MIG) welding on various thicknesses of steel in the flat, vertical, horizontal, and overhead position. (Corequisite: 10-412-170, Transportation Welding 1)
10-412-108 INTERNAL COMBUSTION ENGINE TECHNOLOGY - INTRO TO ...basic internal combustion (IC) engine types, IC engine classifications and applications, IC engine theory and operation, IC engine construction and careers in IC engine service and repair.
10-412-102 DIESEL ENGINE SERVICE FUNDAMENTALS ...diesel engine theory and service procedures; lubrication, cooling, fuel intake and exhaust systems, bearings, seals and basic diesel engine diagnosis; safety.
10-412-153 INTRO TO ELECTRICAL SYSTEMS ...focus on the theory of electricity. This will include studying Ohms, Kirchoff's, and Newton's Laws and how they apply to the circuits on various electrical systems on a vehicle. Students will apply these theories to troubleshoot simple circuits.
10-412-103 DIESEL ELECTRICAL SYSTEMS 1 ...electronic components, electrical safety, storage batteries, charging and starting systems. Safety. (Corequisite: 10-412-153, Introduction to Electrical Systems)
10-809-198 INTRODUCTION TO PSYCHOLOGY ...survey of theoretical foundations of human behavior such as sensation and perception, motivation, emotions, learning, personality, psychological disorders, therapy, stress, and human diversity in personal, social and vocational settings. (Prerequisite: Cumulative GPA of 2.6 or greater OR satisfactory reading and writing assessment scores OR 10-831-107, College Reading and Writing 1 with "B" or better OR Corequisite: 10-831-102, English Comp Prep)
10-804-134 MATHEMATICAL REASONING ...This course provides an alternative pathway to earning credit for a college level liberal arts mathematics course. All college students, regardless of their college major, need to be able to make reasonable decisions about fiscal, environmental, and health issues that require quantitative reasoning skills. An activity based approach is used to explore numerical relationships, graphs, proportional relationships, algebraic reasoning, and problem solving using linear, exponential and other mathematical models. Students will develop conceptual and procedural tools that support the use of key mathematical concepts in a variety of contexts. This course is not designed for Science, Technology, Engineering, or Math (STEM) students and/or others who require calculus. (Prerequisite: Next Gen Arith score greater/equal to 250 AND Rdg score greater/equal to 250; OR TABE A 9/10 Math greater/equal to 12.7 AND Rdg greater/equal to 8.8; OR TABE 11/12 Math greater/equal to 780 AND Rdg greater/equal to 567; OR ACT Math score greater/equal to 15 AND ACT Reading score greater/equal to 16; OR prep courses-contact an academic advisor 920-498-5444)
10-412-104 DIESEL CHASSIS, SUSPENSION, AND BRAKES ...theory and procedures in repairing and maintaining vehicular/off highway steering systems, heavy-duty axles, suspension systems, wheels and tires, and coupling systems. Safety. (Prerequisite: 10-412-100, Diesel Lab Operations)
10-412-105 DIESEL HEAVY EQUIPMENT PREVENTATIVE MAINTENANCE...theory and procedures in repairing and maintaining vehicular/off highway clutches, brakes, wheels and rims, steering, suspension, electrical, air systems, and hydraulic systems. Safety. (Prerequisite: 10-412-100, Diesel Lab Operations)
10-412-123 DIESEL ELECTRICAL SYSTEMS 2 ...will cover but not be limited to: electronic components, electrical safety, storage batteries, charging and starting systems. Knowledge, skills and understanding required for employment in the diesel field. (Prerequisite: 10-412-103, Diesel Electrical Systems 1)
10-412-146 POWER GENERATION ...this course is designed to familiarize diesel technician students with the basics of home standby and commercial generators. Electrical fundamentals, alternators, permanent magnet generators, circuit breakers, generator switchgear, auto transfer switches and automatic voltage regulators will be covered emphasizing home standby and commercial use generators.
10-801-136 ENGLISH COMPOSITION 1 ...learners develop knowledge/skills in planning, organizing, writing, editing. Students will also analyze audience/purpose, use elements of research, format documents using standard guidelines, and develop critical reading skills. (Prerequisite: High school GPA greater/equal to 2.6; OR ACT Reading score greater/equal to 16 AND English greater/equal to 18; OR Next Gen Reading score greater/equal to 250 AND Writing score greater/equal to 260; OR "preparatory course(s)", contact academic advisor at 920-498-5444)
10-412-180 DIESEL HEAVY EQUIPMENT INTERNSHIP ...the application of theory, skills, and techniques in the diesel heavy equipment technician profession. (Prerequisite: Instructor approval required)
10-412-124 DIESEL EQUIPMENT & ENGINE SYSTEMS SOFTWARE ...engine, drive train, chassis, and cab computer systems software.
10-412-106 DIESEL ENGINE SYSTEMS ...basic internal combustion (IC) engine types, IC engine theory and operation, IC engine construction and components. Practical experience and procedures for maintenance and repair of engine systems including valve train and fuel systems including pumps, governors, injectors, unit injectors, unit pumps, timing gears. High-pressure common rail theory and operation; safety.
10-412-136 DIESEL MOBILE HYDRAULICS SYSTEMS hydraulics system components safety, principles of operation, diagnosis, and service.
10-412-137 DIESEL SCHEMATIC INTERPRETATION ...electronic/hydraulic schematics, applications of schematics, system similarities, components, review of systems operation, practical applications in diagnosing system problems, use of special test equipment/schematics to solve problems. (Prerequisite: 10-412-123, Diesel Electrical Systems 2)
10-412-138 DIESEL TRACK DRIVE SYSTEMS ...track shop safety, track drive component parts, system operation, inspection, system diagnoses, system repair, system service, and system maintenance. (Corequisite: 10-412-100, Diesel Lab Operations)
10-412-115 DIESEL EQUIPMENT SERVICE AND MAINTENANCE safety; service manuals; preventive maintenance forms; federal inspection policy; preventive maintenance for trucks, trailers, engine brakes/retarders, construction, and agricultural equipment; and electronic trouble shooting trees. (Corequisite: 10-412-100, Diesel Lab Operations)
10-419-169 HYDRAULICS TECHNOLOGY ...will cover the following but not be limited to hydraulics principles, system schematics and symbols, pumps, valves, cylinders, motors, accumulators, filters, reservoirs, hydraulic seals, fluids, maintenance, and safety rules.
10-801-196 ORAL/INTERPERSONAL COMMUNICATION ...the communication process, perception and self-concept, language, listening, nonverbal communication, interpersonal relationships, communication in groups and public communication; prepare and deliver an oral presentation. (Prerequisite: Next Gen Rdg score greater/equal to 250 AND Writing score greater/equal to 237; OR ACT Rdg score greater/equal to 16 AND English score greater/equal to 16; OR preparatory course-contact an academic advisor at 920-498-5444)
10-412-107 DIESEL ENGINE TROUBLESHOOTING ...diesel engine troubleshooting steps, major check points when inspecting or operating a diesel engine, causes of poor engine performance and failure, perform engine diagnostic tests, dyno test an engine. (Prerequisite: 10-412-102, Diesel Engine Service Fundamentals)
10-412-110 DIESEL POWER TRAIN THEORY ...theory of power train components, coupling systems, hydraulic retarders, mechanical transmissions, drive shafts, final drives, gear reduction boxes, planetary gear sets, chain-type final drive, belt drive systems. (Prerequisite: 10-412-102, Diesel Engine Service Fundamentals)
10-412-113 DIESEL POWER TRAIN APPLICATIONS ...practical experience and procedures for maintenance and repair of power train components, coupling systems, hydraulic retarders, mechanical transmissions, drive shafts, final drives, gear reduction boxes, planetary gear sets, chain-type final drive, belt drive systems. (Corequisite: 10-412-110, Diesel Power Train Theory)
10-412-145 MOBILE HVAC; basics of air conditioning; refrigerants and oil; basic system and its functions; environmental safety practices; inspection, diagnosing, and using service tools. (Corequisite: 10-412-100, Diesel Lab Operations)
10-412-114 EMERGENCY POWER GENERATION ...governor fundamentals, control and monitoring systems, gaseous and diesel fuel systems, generator and system grounding, generator applications and interconnection of on-site synchronous generation with electric power systems. (Prerequisite: 10-412-146, Power Generation)
10-458-100 CDL LICENSE TRAINING ...this course is designed to prepare students for the Wisconsin Class A Commercial Drivers License (CDL) pre-trip inspection, air brake and skills test. Preparation will also be given for taking the State DOT written test including general knowledge, air brakes and combination vehicles.
10-809-172 INTRO TO DIVERSITY STUDIES...basic American values of justice and equality by teaching vocabulary, history of immigration/conquest, transcultural communication, legal liability, multicultural majority/minority relations, ageism, sexism, gender, sexual orientation, the disabled/ADA. (Prerequisite: Next Gen Rdg score greater/equal to 250 AND Writing score greater/equal to 237; OR ACT Rdg score greater/equal to 16 AND English greater/equal to 15; OR 10-831-107, College Reading and Writing with a B or better)
Curriculum Note
. 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
• Explain diesel engine systems
• Explain diesel engine service fundamentals
• Perform required preventive maintenance
• Maintain brake systems
• Analyze electronic/electrical systems
• Manage heating - A/C systems
• Comprehend power train systems
• Interpret schematic drawings
• Diagnose engine systems
• Service vehicle systems
• Communicate effectively with the customer
• Complete customer repair orders accurately
• Organize a daily work schedule
• Tabulate a daily time sheet of technician's repair work


Start here. Finish at a four-year.

NWTC transfer programs are offered through collaborative agreements with our four-year college and university partners. See where your associate degree credits will transfer >> EXCLUDEEND



• The NWTC Diesel Heavy Equipment Technology program is an AED Foundation (Associated Equipment Dealers) Certified Program.


• A three to five page paper or specialty assignments are required for courses applied to an associate degree. Individual instructor requirements will be received at program orientation and listed in each course syllabus.
• Diesel program students are able to enroll in a four-credit Power Generation program enhancement certificate. Please call (920) 746-4919 for more details.

Study Abroad Opportunities

The International Programs staff continually seeks opportunities for students to travel abroad for educational experiences that may be offered in association with program courses. To find out more about which of your program courses may offer an opportunity during this academic year, contact your academic advisor or visit