Coolant Expansion Tank Cap (986, 996, 987, 997, 981)


Replacement coolant reservoir cap, OEM Porsche. Depending on your year model, this mounts either in the trunk or in the engine compartment, please see photo for reference. Our alternate version is half the price, but does not have the Porsche part number displayed on the cap, and the relief spring is slightly different but has been working fine on our project Boxster.


  • Boxster 97-16 (all models)
  • Cayman 06-16 (all models)
  • Carrera 99-12 (all models)


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