Oil pressure switch - tapered or parallel thread - check the photo!

Hi Everyone

My oil pressure light has been flickering occasionally so Im going to change the oil pressure switch as its been in there since 1999 and dead easy to get out.

Typically, the TD5 had two different type threads for their oil pressure switch and this was decided during fitting on the production line so its not vin specific. NUC10003 Tapered and NUC1000020 Parallel.
Ive taken my one out and posted the picture below, so what is is the opinion of Landyzone?

Tapered.

oooooosh that was quick

Use a micrometer guage to check...

parallel thread one would have had a washer the tapered not

Just checked with micrometer and there is a taper

I should have done that in the first place! There was some oil dripping from it when it was in place so I hope that if it has been replaced it was replaced with the correct one!

I will order up a new tapered one anyway and keep an eye on it

Thanks for all your help

PTFE tape around the tapered bit, it will squish up and form a sort of PTFE washer. 5 wraps should do it.