Coolant Vent Valve. Porsche Boxster 986 / Boxster 987 / Cayman 987C / 996 / 997

Replacement 8-bolt vent valve cap with gasket. This vent cap restores the proper seal and pressure regulation to the coolant vent valve on Porsche 996, 997, Boxster, and Cayman models. It mounts to the coolant distribution housing and ensures a secure, leak-free closure of the system's vent point. Porsche part number 99610634700, 99610634701.

• Porsche 997 MK1 Carrera 2 3.6L (2005–2008)
• Porsche 997 MK1 Carrera 2S 3.8L (2005–2008)
• Porsche 997 MK1 Carrera 4 3.6L (2005–2008)
• Porsche 997 MK1 Carrera 4S 3.8L (2005–2008)
• Porsche 997 MK1 TURBO (2007–2009)
• Porsche 997 MK1 GT3 (2007–2009)
• Porsche 997 MK1 GT2 (2007–2009)

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