Genuine OEM Volkswagen Engine Oil Sump Upper Part, part number 06J103603BD. This robust component forms the upper section of the engine's oil pan, often integrating structural elements and providing a critical sealing surface for the lower oil sump. It is positioned directly beneath the engine block. Constructed from durable cast aluminum, this part weighs approximately 3.174 kg and measures 0.445 m in length. Choosing a genuine OEM upper oil sump ensures precise machining, correct bolt patterns, and the structural integrity necessary to maintain engine block rigidity and prevent oil leaks.