Clutch Booster Seal
Suit most Nissan Patrol GQ and GU's.
This is the Seal located at the very front of the Clutch Booster.
If you have a vacuum leak, it might be because this Seal is worn and may have a small hole.
This is a 34mm Seal, please make sure the Seal you are replacing is 34mm.
You will need to remove this seal and measure it to be sure which size you need.