In The Burning Crusade it is item level 159 and requires level 70. In Wrath of the Lich King it is item level 159, requires level 70 and sells to vendors for 1c. In MoP Classic it is item level 159, requires level 70 and sells to vendors for 1c.
Read from the World of Warcraft client build files.
How Brutal Gladiator's Plate Helm Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Brutal Gladiator's Plate Helm suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Brutal Gladiator's Plate Helm is part of the transmog set Brutal Gladiator's Plate Armor (Warrior only). The other 8 pieces:
Items Numbered Next to Brutal Gladiator's Plate Helm
Blizzard numbers items as they are created, so the named items next to ID 35068 (35063 to 35073) were usually added in the same batch as Brutal Gladiator's Plate Helm: the same quest line, zone, vendor or reward set.