? on ordering donor Samsung HDD

[harddrivefix]

Hi to all I am new to this forum and I am wondering if anyone has info on ordering parts (head assembly).

I have info that states to get correct and matching parts, one needs to use the forth character in the alphabetic code printed on the label at the rear side of the drive should match and the country of manufacturing.

I know that you need to purchase a complete HDD and can not purchase just the head assembly. My question is what information do you use when ordering the donor HDD? IE...Model # Country of manufacturing, Serial #

Any help would greatly appreciated.