The alignment dowel for the Citroën 11CV and HY intake manifold, up to September 1963, is crucial for engine block assembly. This pin ensures precise alignment of the intake manifold with the cylinder head, which is essential for optimal air and fuel distribution to the engine. Made from high-quality, durable material, it offers reliability and longevity. Replace old or worn-out pins to maintain engine performance and prevent unwanted leaks or disruptions. A small but indispensable component for the classic car enthusiast.