Dorman's Vacuum Pumps are 100% new, not remanufactured. Since they are new, they do not contain any used components that could lead to premature failure. Most premature failures occur with the bearing. A bearing failure will prevent the pump from producing vacuum. Depending on the vehicle, this may result in a loss of vent or temperature control inside the cabin, impaired or partial loss of braking or 4WD. Product Features:Direct replacement for ease of installationVehicle try-on testing has been conducted on this part to ensure trouble-free performanceMechanical and electric vacuum pumps availableNo core return hassles
