The Vaico Expansion Tank Cap - V2000981 is a high-quality replacement cap for the expansion tank of a vehicle's cooling system. It is designed to fit securely and prevent any leaks or pressure loss in the system. This cap is made from durable materials and is built to withstand high temperatures and pressure. It is a direct fit for a variety of vehicle makes and models, ensuring easy installation and a perfect fit. This expansion tank cap is an essential component for maintaining the proper functioning of a vehicle's cooling system.