So my old trans died because my radiator died. So are the x308 radiators interchangeable?

 

Sure, but always take measurements in case someone has done some extra curricular work.

Here's a site to do some searches for used ones...https://www.car-part.com/

I'd take your old radiator to a radiator shop first to see if its salvageable. If you get a used one, I'd get it pressure checked by a shop before putting it in.

 

Bought a new one from a reputable seller on ebay. I think i'll keep the core of my old rad and trans , just incase the price of new/refurb parts gets higher than repairs though.

 

The rads on early X308s (up to VIN 832727) have a different part number (MNC4190AE). After that, they are all the same (MNC4190AG).