Thanks, but I am not looking to fix an old sensor. I'm looking for an adaptor fitting that would allow me to use an aftermarket EGT sensor in the OEM EGT bung in the turbo. The reason I said I couldn't find any used on Ebay is because I would have just cut the sensor off the wiring and used it as a plug for the odd sized EGT bung if I had to. I would rather utilize the bung if I can, but only can with an aftermarket egt sensor, hence the desire for an adaptor fitting.
preferably a m12x1.0 male to 1/8 in NPT female.
while I'm typing this I just read an email from Frankenturbo, which suggests I re-tap the bung to 1/4" NPT then fit a 1/4" NPT to 1/8" NPT threaded sleeve in to accommodate the aftermarket EGT sensor. This may be the cheapest route if I can find that 1/4" size tap I bought and only used once like 3 years ago...