Water Temp Sending Unit
 

Hey all, I need a little clarity on installing a new Water Temp Sending Unit (928 606 201 01). My question is, does this require a metal seal ring? Looking at the Porsche diagrams it does not look like this part uses a seal ring. The DME Temp Sensor, blue top (944 606 125 00) shows it needing a metal seal ring (900 123 101 30). If the Water Temp Sending Unit does need one, can you let me know the correct PN or size so I can order. Many thanks.

Yes, needs an aluminum washer (14 x 18 x 1.5 mm). Part 900.123.007.30

Thank you, I will get it on order today! Much appreciated.