This brake master cylinder reservoir cap gasket is designed to match the fit and function of the original gasket on specified vehicles, and is engineered for durability and reliable performance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford Country Squire: 1987] - [Ford LTD Crown Victoria: 1987] - [Ford LTD: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986] - [Lincoln Continental: 1980] - [Lincoln Mark VI: 1980, 1981, 1982, 1983] - [Lincoln Town Car: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989] - [Mercury Colony Park: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [Mercury Grand Marquis: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [Mercury Marquis: 1979, 1980, 1981, 1982]