Genuine OEM Volkswagen Engine Oil Sump, part number 03L103603H. This critical engine component is positioned at the bottom of the engine, functioning as the reservoir for the engine's lubricating oil. It encloses the crankshaft and other lower engine components, collecting oil as it drains from the engine. Constructed from robust cast metal, it measures approximately 0.43 meters in length and weighs 2.31 kg. Using a genuine OEM oil sump ensures precise fitment, proper sealing, and the structural integrity required to protect the engine's vital internal components and prevent oil leaks.