The Vaico Expansion Tank Retainer - V201858 is a product designed to securely hold the expansion tank in place in a vehicle's engine compartment. It is made from durable materials to withstand the heat and vibrations of the engine. This retainer is specifically designed to fit and function with the Vaico Expansion Tank, ensuring a perfect fit and reliable performance. It is a crucial component in maintaining the proper functioning of the vehicle's cooling system and preventing potential damage.