The retaining ring for reverse gear 18x39.5x3.2 is specifically designed for the Citroën 11CV. This ring acts as a crucial fastening element that ensures components remain securely in place. It is made from high-quality material for durability and optimal performance. The ring helps stabilize movements during shifting into reverse gear and prevents unwanted play in the system. This retaining ring is essential for maintaining vehicle efficiency and safety, contributing to a smoother driving experience. Ensure that the exact model is compatible with your vehicle.