A radiator support for a Citroen 15CV and 11CV is a crucial component that helps secure the radiator in place. It prevents the radiator from shifting while driving, which can avert damages and extend its lifespan. The support is typically made from high-quality metal that withstands the vibrations and heat present in the engine compartment. Ensure that the support is correctly installed to guarantee optimal performance of the radiator and engine. Essential for maintaining classic Citroen vehicles.