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. [Chevrolet Astro: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Chevrolet G10: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Chevrolet G20: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Chevrolet G30: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996] - [Chevrolet P20: 1985, 1986, 1987, 1988, 1989] - [Chevrolet P30: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [GMC G1500: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [GMC G2500: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [GMC G3500: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996] - [GMC P2500: 1985, 1986, 1987, 1988, 1989] - [GMC P3500: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [GMC Safari: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995]