This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Ford Mustang: 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [Ford Thunderbird: 1987, 1988] - [Mercury Cougar: 1987, 1988]