Diesel Technology, Associate in Applied Science

Forest Park

The AAS degree Diesel Technology program is designed to prepare graduates for careers as medium/heavy truck repair technicians. Graduates will be qualified for positions requiring diagnosis and repair of the following truck systems: diesel engines, suspension and steering; brakes, electrical and electronics, preventive maintenance, drive train; and heating, ventilation and air conditioning. Graduates will be competent for entry-level positions in new vehicle dealerships, truck and bus leasing companies, street and highway departments, transit maintenance facilities, fleet carriers, and miscellaneous other vehicle-based operations.

Interested in this program? Start the enrollment process by visiting the Apply to STLCC page.   

At the completion of the program, students are expected to:

  1. diagnose, service, and repair truck engines.
  2. diagnose, service, and repair truck braking systems.
  3. diagnose, service, and repair truck steering and suspension systems.
  4. diagnose, service, and repair truck electrical and electronic systems.
  5. diagnose, service, and repair truck HVAC systems.
  6. perform truck preventive maintenance.
  7. diagnose, service, and repair truck drivetrains and axles.

Program of Study

Career General Education
ENG 101College Composition I (MOTR ENGL 100)3
MTH 108Elementary Applied Mathematics (or higher)3
BUS 104Introduction to Business Administration3
COM 101Oral Communication I (MOTR COMM 100)3
PSI 101Physical Science (MOTR PHYS 110)3
XXX xxxSocial & Behavioral Sciences: Civics Requirement3
Program Requirements
DIE 100Introduction to Diesel Technology3
DIE 101Diesel Engine Operation and Repair3
DIE 102Medium/Heavy Truck Suspension and Steering3
DIE 103Medium/Heavy Truck Electricity3
DIE 105Diesel Fuel Systems3
DIE 106Medium/Heavy Truck Brakes3
DIE 107Medium/Heavy Truck Electronics3
DIE 201Preventive Maintenance Inspection3
DIE 206Medium/Heavy Truck Drivetrains3
DIE 203Truck Heating, Ventilation and Air Conditioning3
DIE 204Service and Parts Management3
DIE 202Co-op Work Experience I-Diesel Technology3
DIE 205Co-op Work Experience II - Diesel Technology3
ME 101Welding Technology3
Total Credit Hours60
New PlanGrids
First Year
Fall Credit Hours Prerequisites Milestones/Notes
DIE 100 Introduction to Diesel Technology3MTH 020 with a grade of "C" or better or satisfactory score on placement test and Reading Proficiency.First 8 weeks
DIE 103 Medium/Heavy Truck Electricity3Reading Proficiency.First 4 weeks
DIE 107 Medium/Heavy Truck Electronics3DIE 103 and Reading Proficiency.Second 4 weeks
DIE 201 Preventive Maintenance Inspection3DIE 100 and Reading Proficiency.Third 4 weeks
DIE 102 Medium/Heavy Truck Suspension and Steering3DIE 100 and Reading Proficiency.Fourth 4 weeks
Credit Hours15
Spring Credit Hours Prerequisites Milestones/Notes
DIE 106 Medium/Heavy Truck Brakes3DIE 100 and Reading Proficiency.First 4 weeks; Apply for CS
DIE 101 Diesel Engine Operation and Repair3DIE 100 and Reading Proficiency.Second 4 weeks
DIE 105 Diesel Fuel Systems3DIE 100, DIE 101, DIE 107, and Reading Proficiency.Third 4 weeks
DIE 203 Truck Heating, Ventilation and Air Conditioning3DIE 100 and Reading Proficiency.Fourth 4 weeks
ME 101 Welding Technology3Reading Proficiency.
Credit Hours15
Summer Credit Hours Prerequisites Milestones/Notes
DIE 202 Co-op Work Experience I-Diesel Technology3 DIE 102, DIE 106, DIE 107, and Reading Proficiency.First 4 weeks
DIE 205 Co-op Work Experience II - Diesel Technology3Reading Proficiency.Second 4 weeks
Credit Hours6
Second Year
Fall Credit Hours Prerequisites Milestones/Notes
DIE 206 Medium/Heavy Truck Drivetrains3DIE 100 and Reading Proficiency.First 4 weeks
DIE 204 Service and Parts Management3Reading Proficiency.Second 4 weeks
MTH 108 Elementary Applied Mathematics (or higher)3MTH 020 with a grade of "C" or better or satisfactory score on placement test and Reading Proficiency. All prerequisite courses must have been completed within the last 3 years.
COM 101 Oral Communication I (MOTR COMM 100)3Reading Proficiency or concurrent enrollment in RDG 030 or ENG 070.
Credit Hours12
Spring Credit Hours Prerequisites Milestones/Notes
ENG 101 College Composition I (MOTR ENGL 100)3ENG 030 or ENG 070 with a grade of "C" or better or recommendation of department and Reading Proficiency or concurrent enrollment in RDG 030.Apply for graduation
BUS 104 Introduction to Business Administration3Reading Proficiency.
PSI 101 Physical Science (MOTR PHYS 110)3MTH 030 or higher with a minimum grade of "C" and Reading Proficiency.
Social & Behavioral Sciences: Civics Requirement3  
Credit Hours12
Total Credit Hours60

*Click on the hyperlinked course number to view additional information about the course.

**Students completing a course that has been assigned a MOTR number may transfer that course to any public institution in Missouri. Those who complete CORE 42 requirements will have that verification on their transcript.

*** It is your responsibility to verify that the courses listed above will transfer to the four-year institution of your choice.  Maximize your transfer credits/classes by meeting with an academic advisor.