In Wrath of the Lich King it is item level 258, requires level 80, sells to vendors for 11g 66s 47c and is named Judgement Helm. In MoP Classic it is item level 232, requires level 80, sells to vendors for 11g 66s 47c and is named Judgement Helm.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Judgment Helm Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Judgment Helm suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Judgment Helm 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 49325 (49320 to 49330) were usually added in the same batch as Judgment Helm: the same quest line, zone, vendor or reward set.