5509699
Inlet Catalyst Module
Cummins®

The Inlet Catalyst Module (Part Number: 5509699) manufactured by Cummins is a crucial component of the exhaust aftertreatment system found in commercial trucks. It is designed to reduce harmful emissions and meet stringent emission regulations set by environmental authorities. The primary function of the Inlet Catalyst Module is to treat the exhaust gases produced by the engine before they are released into the atmosphere. As the name suggests, this module is located at the inlet section of the aftertreatment system, where it receives the hot exhaust gas. Within the module, there are specialized catalyst materials, such as precious metals like platinum, palladium, and rhodium. These catalysts facilitate chemical reactions that convert harmful pollutants in the exhaust gas into less harmful substances. The Inlet Catalyst Module primarily focuses on reducing nitrogen oxides (NOx), which are a major contributor to air pollution. By exposing the exhaust gas to the catalyst materials, the Inlet Catalyst Module promotes chemical reactions that break down and convert NOx into nitrogen and water vapor, which are far less detrimental to the environment. This process is known as selective catalytic reduction (SCR), which helps ensure compliance with emission standards. In summary, the Inlet Catalyst Module (Part Number: 5509699) manufactured by Cummins plays a vital role in reducing emissions by employing catalyst materials to convert harmful pollutants, particularly nitrogen oxides, into less harmful substances.