Subject: generic part for a mitsubishi tecnica 1997 1.8
Question:

I need to know if i can find a generic part for a mitsubishi tecnica 1997 1.8 standard, i need a rear break disk, where can i find this if it could be found and where? 

Answer: Mattie.
I've honestly never heard of a 'Tecnica' model. Your best bet would be to check with the dealership you purchased the vehicle from. If a Mitsubishi dealership doesn't have disk brakes for your car, I couldn't really tell you where to find them.
Good luck!