The product is a genuine OEM brake booster and master cylinder assembly for a 1990-1993 Acura Integra RS LS model with non-ABS system. The assembly has a 15/16 bore size and is designed for Acura vehicles. It is specifically designed for the 1991 Acura Integra model and comes with the necessary components for installation. The part number is 540 and is interchangeable with part number 540-58281. Made by the brand Acura, this master cylinder with reservoir is a reliable and high-quality replacement part for your vehicle's braking system.
