Porsche 986 987 Boxster Cayman 996 997 Carrera coolant header expansion tank cap. 996 106 447 04. ((LB239))

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Porsche 986 987 Boxster Cayman 996 997 Carrera coolant header expansion tank cap.

Genuine Porsche 986, 987, Boxster, Cayman, 996, 997 coolant expansion tank cap and header tank lid.

This cap seals your coolant system. They also act as a pressure safety valve. The lid keeps the whole cooling system pressurised and operating at a predetermined pressure. Excess pressures are relieved through the lid's integral safety valve.
A faulty lid can lead to engine overheating and excessive gas build up and pressurisation of your expansion tank.

This will fit 

986 Boxster (1997-2004) & Boxster S (2000 and 2004)
996 C2 Carrera 2, C4 Carrera 4, C4S Carrera 4S (3.4L & 3.6L) (1998 and 2005)
987 Boxster (2005-2012) & 987 Boxster S (2005-2012)
987 Cayman (2006-2012) & 987 Cayman S (2006-2012)
997 Carrera 2 (2005-2012)
997 Carrera 2S (2005-2012)
997 Carrera 4 (2005-2012)
997 Carrera 4S (2005-2012)

Porsche part number 996.106.447.04 / 996 106 447 04