Have you tried RockAuto? Or are you looking for OEM? OEM mounts will cost you a fortune, around $100+ each IIRC. Also, Ma Mopar calls them insulator engine mounts.
https://www.rockauto.com/en/catalog/dodge,2004,ram+2500+pickup,5.7l+v8,1424674,engine,motor+mount+kit,11844...