Im zeroing in on an oil temp sending unit but am unable to find the correct thread/size for it. Ive searched the service repair manual with no results. I found this bolt is the correct replacement fromAuto parts wharehouse, part number W0133-1643669.

2004-2005 Chrysler Crossfire - Febi Oil Drain Plug





Im looking at this sending unit

from egauges thats m14x 1.5 but there's also one thats m16x1.5 (that doesnt appear to come with the brass o ring)

Temperature Senders: 300 Farenheit / 150 Celsius - VDO Ohm Range - egauges.com

can anyone tell me what size and/or thread I need?