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. [Jeep CJ5: 1978, 1979, 1980, 1981, 1982, 1983] - [Jeep CJ7: 1978, 1979, 1980, 1981, 1982, 1983] - [Jeep Scrambler: 1981, 1982, 1983]