hello I need help figuring out what the difference is between these two part numbers for the rear iron of a 13brew.
are they interchangeable? Thank you

N3YC-10-C50

Vs

N3G1-10-C50

 

well obviously the big difference is that one is easy to get in the US and the other isn't.
difference #2 is the price, the US part is more money, as usual.

and then the only mechanical difference we know about is that the N3G1-10-C50 has a plug in the oil pressure sensor port, cause they just gave up on that

 

I accidently ordered the N3G10-C50 rear side housing by mistake for my 94 LHD RX7 will this housing work fine?
I hope the plug is threaded and removable, if I wan to hook up my oil pressure sensor.

 

Plug is threaded and removable, I assume it's the same part that is put on new factory REWs. Unscrew the plug, put pipe sealant on the pressure sender and torque it in.