In Wrath of the Lich King it is item level 258, requires level 80, sells to vendors for 11g 57s 83c and is named Judgement Cover. In MoP Classic it is item level 232, requires level 80, sells to vendors for 11g 57s 83c and is named Judgement Cover.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Judgment Cover Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Judgment Cover suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Judgment Cover 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 49323 (49318 to 49328) were usually added in the same batch as Judgment Cover: the same quest line, zone, vendor or reward set.