This is a brand new master cylinder gasket for 1967-68 Buick Riviera Electra Wildcat models. It is an original equipment manufacturer (OEM) part with part numbers 5462700 and 807-E, and is suitable for vintage cars. The gasket is made by Delco, a trusted brand in the automotive industry. This item is perfect for those who need to replace their old or worn out gasket to ensure their brakes are working properly.