I have been looking for months for an adapter for my Autometer water temp gauge sender. I belive the stock water temp sender(gauge one) in the GA16DE head is M10X1.25, My Autometer sender is 1/8"NPT. The only adapters I can find are(Autometer,Equus) are M10X1.00. So I am asking for your help. Does anyone know where I can find an adapter? Is there anyone here who could machine one for me? For those of you who have aftermarket water temp gauges with 1/8"NPT senders, how/where did you install them?