The part that you want (it is the soldered on type) is available on Ebay http://www.ebay.com/sch/i.html?_from=R40... I do not know if they are the same for all Galaxy 4 7.0 models
Here is a link which shows how to replace the battery in your Tab. It is handy as it shows how to open your Tab. At 1:46 minutes into the video you can see the charging port (which is soldered on) on the right hand side of the Tab, as seen).
Here is a link which shows how to remove /replace the charging port on a similar model Tab (not the same model but hopefully good enough to give you an idea on how to do it).
Hopefully this will be of some help.
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