Description Reviews This MINI Cooper Vacuum Pump will fit all Gen 2 MINI Cooper S with the N18 engine. We see these seize up on cars that are run low on oil and it doesn't get enough oil to lubricate the vacuum pump. This is also the cause if your timing bolt broke off the end of the cam shaft and caused to motor to crash its valves into the pistons. Also, this is the only way to buy the nipple that the break booster attaches to if it breaks (if we do not have a used one in stock). This is a high quality aftermarket item that is as good as the OEM part, but at a lower cost!