Part Number:  03L 131 521 J is an OEM Audi/VW connecting pipe used in the Exhaust Gas Recirculation (EGR) system of certain diesel engines.
✔ Function: It forms part of the EGR circuit, linking the EGR valve to other EGR components so that a portion of exhaust gases can be recirculated back into the intake to reduce emissions.
✔ Material & Construction: Usually made of durable metal or steel tube to handle hot exhaust gases and high temperatures from the EGR system.
✔ OEM Quality: This is a genuine Volkswagen Group part (used by Audi), ensuring precise fit and durability