The factory drain plug at the bottom of the radiator on my 2004 525i broke at the neck. The whole piece should look like the picture attached

I plan to take this broken piece out, but concerned about the two "hooks" at the tail end of the part may keep me from puling it out. They may function like clips which you can insert in but hard to take out. Anybody had prior experience of removing this kind of drain plug out?

Thanks!

the picture did not get uploaded somehow. Here is the link

http://www.ebay.com/itm/BMW-e60-e63-...ht_1124wt_1139

or

http://www.koperformance.com/online_ordering/make_n_model_search_catalog4.php?make_select=BMW&y ear_select=2004&model_select=E60525M54|||40e1bb5d5 f231761f9b63b0b0918f96a&model_select_text=525i%20M 54%20%28E60%20chassis%29&group_id=C2&group_text=Co oling%20System&group_log=58725489&cat_select=8018& cat_text=Drain%20Plug%20-%20Radiator&cat_log=58733912