NEED TO REPLACE ECU. 143BHP

[ukheman]

Hi, i have a 2007 Mazda 6 2.0 TS 143BHP. the car has no warranty and was involved in a flood.

I need to replace the powetrain control module Part RF7K 18 881S

the old one i have opened up and its damp.

Can i replace the part from a Donor car and have it reprogrammed from the Dealers.

so a far i have traced

RF7K 18881H from an 2006 Mazda 6 2.0 TS 143BHP.

Or will it have to be a new Part Part.

ie once programmed they cant be programmed for a different car.

Thansk