A1 CARDONE Remanufactured Vacuum Brake Boosters, Hydro-Vac Boosters, and Hydraulic Boosters, offer your vehicle reliable stopping performance, every time. Each unit is reverse engineered, based off 40 years of CARDONE Engineering expertise, where original design weaknesses are identified, corrected and where applicable upgraded to provide a more durable part then the original unit. Every unit is remanufactured to meet or exceed OEM performance, providing a quality product both you and your vehicle rely on. Product Features:100% O.E. quality seals, diaphragms and check valves are installed on every unit for like-new performance and reliabilityExclusive rust-prohibitive finishing process extends unit lifeMaster cylinder output rods are pre-adjusted (when included) for easier and faster installationNew mounting nuts and washers ensure proper, hassle-free installationAll units are 100% tested to ensure reliable performanceGuaranteed fit and functionMeets or exceeds O.E.M performance