Genuine OEM Volkswagen EGR Cooler Pipe, part number 03P131521D. This rigid metal pipe is a crucial component within the exhaust gas recirculation (EGR) system, connecting it to the engine's cooling system. Its function is to facilitate the cooling of exhaust gases before they are recirculated, which helps reduce emissions and engine temperatures. The pipe measures 0.21 m in length and weighs 0.117 kg. Using a genuine OEM EGR cooler pipe ensures precise fitment, resistance to high temperatures and corrosive exhaust gases, and proper sealing for effective emissions control.