This is where exhaust gases from the engine enter the DPF system. These gases contain harmful pollutants, including soot (particulate matter), hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx).

Before reaching the DPF, the exhaust gases pass through the Diesel Oxidation Catalyst. This component converts carbon monoxide (CO) and hydrocarbons (HC) into carbon dioxide (CO₂) and water vapor (H₂O), reducing emissions and preparing the gases for effective filtration in the DPF.

The DPF captures and traps fine particulate matter (soot) from the exhaust. Over time, this soot accumulates, and the filter undergoes regeneration, a process that burns off the soot at high temperatures, turning it into ash and keeping the filter clean.

This is the connection point where the filtered exhaust exits the DPF system. The Marmon clamp ensures a secure, leak-free connection to the rest of the exhaust system, directing the now-cleaner gases towards the tailpipe.

After passing through the DPF, the exhaust emissions are significantly cleaner, with most of the soot, hydrocarbons, and carbon monoxide removed. This process helps diesel engines meet strict emission standards while reducing environmental impact.