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CUMMINS Engine Aftertreatment System Course 

EPA 2007, 2010, 2021, 2025 and Euro III, IV, V, VI Technologies

Master the operation, diagnostics, and maintenance of emission control systems in Cummins engines for automotive applications: DOC/DPF/SCR/ASC.

This course is designed for technicians, fleet supervisors, and diesel industry professionals who want to gain an in-depth understanding of aftertreatment technology evolution and develop practical skills to reduce failures, optimize performance, and ensure regulatory compliance.

Modality: Virtual / In-Person / On-Site

Duration: 12 hours (Schedule and intensity adapted to the selected modality)

Language: English or Spanish

What you will learn: 

  • Understand emission standards and regulations for EPA and Euro engines

  • Learn how the following systems operate: DOC (Diesel Oxidation Catalyst), DPF (Diesel Particulate Filter), SCR (Selective Catalytic Reduction), ASC (Ammonia Slip Catalyst)

  • Understand the operation of DEF (Diesel Exhaust Fluid) and compliance with ISO 22241-1

  • Understand the different types of aftertreatment regeneration: Active, Passive, Parked (stationary), Cleaning machine

  • Interpret key parameters and sensor signals (NOx, temperature, differential pressure, NH₃)

  • Understand DPF regeneration strategies, DEF dosing, and emission control techniques

  • Diagnose common failures and apply structured troubleshooting methodologies

  • Implement best maintenance practices to reduce recurring failures and operational costs

  • Technicians

  • Shop Supervisors

  • Maintenance Supervisors​

Course content:

Designed for:

  • Module 1 – Emission Standards and Regulations EPA (2010, 2021, 2025) and Euro (V, VI)

  • Module 2 – Aftertreatment System Architecture and Operation DOC → DPF → SCR → ASC

  • Module 3 – Sensors and Control Parameters

  • Module 4 – DPF Regeneration, DEF Dosing, and Emission Control Strategies

  • Module 5 – Diagnostics and Troubleshooting

  • Module 6 – Best Practices for Operation and Maintenance

Includes: Certificate, Material, and Post-Training Technical Support

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