This is the OEM Fuel Pulsation Damper (FPD) O-RIng that fits Nissan and Infiniti models equipped with a VQ37VHR engine. It is used to seal the top of the FPD on both the left and right sides of the fuel rail.
There are 2 required per vehicle.
- 2009+ Nissan 370Z (Z34)
- 2009+ Infiniti G37 (V36)
Item location illustrated below.