New Exhaust gas aftertreatment system catalogue

January 14, 2026

The new Exhaust gas aftertreatment system catalogue, a document developed by Cojali that goes beyond the traditional concept of a product catalogue, is now available on our website.

Heavy-duty transport has evolved to meet increasingly stringent environmental regulations, incorporating anti-pollution systems such as particulate filters (DPF) and SCR systems for NOx reduction, whose effectiveness depends on precise electronic control and correct AdBlue/DEF dosing.

The document lists the most representative references of the main components of the aftertreatment system, such as AdBlue/DEF gauges, solenoid valves, urea supply and dosing modules, ammonia sensors, pressure and temperature sensors, NOx sensors and lambda sensors.

However, the highlight of the catalogue is an interactive visual diagram of the aftertreatment system, which represents all components and their location. Through this diagram, the user can find out the function of each element and directly access the website to consult the complete catalogue of references of each typology, not just the most important ones that appear in the document.

In addition, the catalogue includes information on the Jaltest Tools AdBlue/DEF module cleaning kit and access to the technical document: "System failures, DPF in detail and resolution of recurring problems".

With this new catalogue, Cojali reinforces its commitment to quality, reliability and innovation in exhaust gas treatment systems, manufactured under the highest standards and subjected to rigorous functional and durability tests.