Genuine OEM Citroen Particle Filter Pressure Pipe, part number 9817040380. This pipe is designed to measure pressure related to the diesel particle filter, providing crucial data for the engine management system. It sits as an inlet pipe, connecting to the particle filter assembly. Constructed from durable metal, it is engineered to withstand high temperatures and exhaust gases. Choosing a genuine OEM pipe ensures precise pressure readings and correct routing, which is vital for maintaining the integrity and efficiency of the exhaust aftertreatment system.