O2 Thread Size

[vjm530]

Hello Everyone,

I have been searching endlessly for an answer to my question and hope someone here can help.

I have a '97 LR Range Rover 4.0 (P38) and I'm trying to find out the thread size of my Oxygen Sensors (2 Forward). My searches have revealed a contradiction of 12mm or 18mm. My parts search has only revealed PN #'s but not size. I hope someone can help this confused Yank.

Cheers.

 

[eightinavee]

They are 12mm Titania ones on the 95-99 Gems injected cars.The sensors are 5-0v so do not fall into the trap of using cheap 0-1v Zirconia ones.