This febi bilstein Fuel Line Union, part number 19947, is an in-line filter designed for fuel injection systems. It features a spanner size of 17mm and external thread sizes of M12 x 1.5 and M14 x 1.5. The part weighs 0.023 kg. It is compatible with a wide range of Mercedes-Benz vehicles, including various models of the C-Class, E-Class, S-Class, G-Class, M-Class, SLK, SL, and Sprinter, as well as Vito. The original part numbers it replaces include A0000744686, A0000745786, A0000745986, and A0000746086. Please use the vehicle's make and model tool to confirm fitment or contact us for assistance. Ensure installation is carried out by a competent individual. Parts are typically supplied without fitting instructions. For any queries, please contact us via the provided seller link.