Genuine OEM Audi Fuel Filter, part number 4N0127401A. This essential component ensures clean fuel delivery to the engine by effectively removing contaminants and debris from the fuel supply. It is typically located in the fuel line between the fuel tank and the engine. Weighing 0.416 kg and measuring 0.21 m in height, this is a canister-style filter. Using a genuine OEM fuel filter guarantees the correct filtration level and flow rate, preventing damage to sensitive fuel system components.