This oil filler cap, referenced on the rocker cover, is designed to replace a worn, damaged or missing cap on a wide range of Volkswagen models. It is suitable for petrol and diesel engines fitted in particular to the Volkswagen Golf 4, Volkswagen Passat B3, B4 and B5, Volkswagen Scirocco 1 and 2, Volkswagen Corrado as well as Volkswagen Polo 86C and Polo 6N. This type of part, often overlooked during restoration, nevertheless plays an essential role in the sealing of the lubrication circuit and in engine preservation. Having an original cap that complies with specifications guarantees rigorous maintenance, essential for keeping a classic vehicle in optimal condition.