In Wrath of the Lich King it is item level 238 and requires level 80. In MoP Classic it is item level 238, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files.
How Furious Gladiator's Linked Helm Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Furious Gladiator's Linked Helm suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Items Numbered Next to Furious Gladiator's Linked Helm
Blizzard numbers items as they are created, so the named items next to ID 41151 (41144 to 41157) were usually added in the same batch as Furious Gladiator's Linked Helm: the same quest line, zone, vendor or reward set.