coolant tank ???
 

recently bought one on amazon, for 100 just got it in came in an original box i think, has the oem mazda sticker on the side of the box. My question is should the part be wrapped in plastic with the part number sticker on the plastic bag or do some parts come like that, not wrapped in plastic.?? also anyone know what they charge at the dealer for one? should have checked first.

They could have just taken it out of the bag.