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. Brake Master Cylinder. This part generally fits Mazda vehicles and includes models such as RX-7 with the trims of 10th Anniversary Coupe 2-Door,Base 2+2 Coupe 2-Door,Base Coupe 2-Door,Convertible Convertible 2-Door,GTU Coupe 2-Door,GXL 2+2 Coupe 2-Door,GXL Coupe 2-Door,LX 2+2 Coupe 2-Door,LX Coupe 2-Door,SE 2+2 Coupe 2-Door,SE Coupe 2-Door,Sport Coupe 2-Door,Turbo Coupe 2-Door.