The Engine Coolant Overflow Bottle Reservoir Cap Lid by Chevyparts is a vintage part made of plastic specifically designed for Chevy and GMC trucks from 1973 to 1984. This cap is included in the package and is a perfect fit for the specified vehicles, ensuring the proper seal and function of the coolant overflow reservoir. It is a genuine replacement part that is not universal and does not offer enhanced performance, making it a reliable choice for classic Chevy and GMC trucks.
