Genuine OEM Audi Rear Engine Crankshaft Seal Flange, part number 06K103171P. This critical component is installed at the rear of the engine to prevent oil leakage from the crankshaft, maintaining proper engine lubrication and preventing contamination. The assembly includes the seal integrated into a mounting flange. Constructed from durable materials, it measures approximately 0.165 m in length and weighs 0.179 kg. Using a genuine OEM seal flange ensures precise fitment and material integrity, which is vital for preventing catastrophic engine oil leaks.