This seems like a noob question but ...

There is what I assume is an oil pressure sending switch on top of engine near the oil cooler.

I was going to replace this when I do the oil cooler but can not seem to find part number or even a diagram showing it. Looks like there is a similar unit at the taco plate that shows up in a lot of places.

Any guidance in what part to order?

Thanks

http://www.porsche.com/all/media/pdf/origi...914_KATALOG.pdf

The one in the taco plate is temperature.

http://www.amazon.com/Porsche-Pressure-War...g/dp/B00CGALC5E

Autoatlanta has a great set of hard parts diagrams for the 914-4 and the 914-6 on their website. I looked there and found the part number for the 914-4 oil pressure sensor is 021919081D. You should confirm this before you order the part.

The link I posted above is the single most important item to have if you work on a 914.

Page 53 items 26 & 27

26 - 021 919 081 D oil pressure switch

http://www.pelicanparts.com/More_Info/0219...1-919-081-D-OEM

27 - 039 919 268 sender

http://www.pelicanparts.com/More_Info/0399...039-919-268-OEM