In Wrath of the Lich King it is item level 258, requires level 80, sells to vendors for 11g 62s 21c and is named Judgement Helmet. In MoP Classic it is item level 232, requires level 80, sells to vendors for 11g 62s 21c and is named Judgement Helmet.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Judgment Helmet Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Judgment Helmet suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Judgment Helmet is part of the transmog set Judgment Armor (Paladin only). The other 13 pieces:
Blizzard numbers items as they are created, so the named items next to ID 49324 (49319 to 49329) were usually added in the same batch as Judgment Helmet: the same quest line, zone, vendor or reward set.