This valve cover nut is specifically designed for the classic Citroen 11CV 11D. Measuring 17x6mm, this fastening nut is crucial for the optimal functioning of the engine system. It provides a secure seal, minimizing the risk of oil leaks and protecting vital engine components. This original valve cover nut meets the high standards of Citroen vehicles and is essential for owners wanting to keep their vehicle in top condition. Made from high-quality materials, it offers durability and reliability for long-term use. With this nut, the authentic look and functionality of the Citroen are preserved.