The oil channel/drain ring for a Citroën 15CV is a crucial component for effectively sealing the oil channel during maintenance or repairs. This ring prevents leaks and ensures that the oil circulates properly through the engine, which is essential for the motor's longevity and performance. It is specifically designed for the iconic Citroën 15CV model, with a precision fit that guarantees a good seal. Made from high-quality material, it withstands the temperatures and pressure typically found in the engine, contributing to the reliable operation of the vehicle.