The MINI Factory replacement Crankcase Ventilation Valve, common referred to as the PCV valve. This is a frequently overlooked maintenance item.
2002-07/2004 R50 MINI Cooper and R53 Cooper S Hatchback
For 07/2004 production or later, see NME9601.
Note: The early version uses a separate bolt to secure the unit on the valve cover (bolt not included). The later version has a threaded body that is screwed into the valve cover directly. Inspect your factory pcv valve type before ordering.
For the vent hose, see NME7704.
If you are looking for the PCV Valve for the 2nd generation 2007+ MINIs, those cars do not have a separate PCV valve. Those cars have the PCV Valve 'built-into' the Valve Cover. The only way to replace the PCV Valve is to replace the Valve Cover.