8056. Cup. from VIN# 3BY250001. A component that isolates one part from another. An example would be a coil spring insulator. The insulator would isolate the coil spring and a mounting surface. Isolates the noise and vibration generated from the operation of the Air Injection Air Pump. Secondary Air Injection Pump Mount. A. I. R. pump buffer. A. I. R. pump bumper. A. I. R. pump insulator. A. I. R. pump isolator. Air pump buffer. Air pump bumper. Air pump damper. Bracket buffer. Cup. Mount bracket bumper. Secondary Air Injection Pump Insulator. Secondary Air Injection Pump Mount Insulator. Included with: AIR pump, Leak AIR pump.