sender oil / air seperator

[allen l]

After waiting for over two months I received an oil temperature sender for my oil / air seperator. However, the thread (?) is to big so it won't fit. The part number I got is 71167.
Anyone got a clue about this one? According to Caterham it should fit. Unfortunately it simply doesn't.

[allen l]

Hi, thanks. The link is actually the same part number handwritten on the package.
Only the thread of this one was bigger, so it didn't fit.

I got some things written on this sender:
21/9
6811
- 03-

Are these of any help?

[allen l]

The only thing I know is that someone said it probably should be 1/8 and that the one I got from Caterham (Netherlands) was 1/10. I decided to send the sender back. Hopefully I get the right one now, otherwise I'm going to try to call Caterham in uk.
I'm slowly getting used to getting the wrong parts. Had to send my rs14 brakepads back to Dartford today as they gave me some pads I've never seen before. Wouldn't even need to remove the pins of the calipers if I wanted to slot these into place.