In Wrath of the Lich King it is item level 226 and requires level 80. In MoP Classic it is item level 200, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Dreadnaught Gauntlets Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Heroes' Dreadnaught Gauntlets suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Heroes' Dreadnaught Gauntlets is part of the transmog set Heroes' Dreadnaught Battlegear (Warrior only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Heroes' Dreadnaught Gauntlets Fits
Other Items Named Heroes' Dreadnaught Gauntlets
1 other item in the current build is also called Heroes' Dreadnaught Gauntlets. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Heroes' Dreadnaught Gauntlets
Blizzard numbers items as they are created, so the named items next to ID 39609 (39604 to 39614) were usually added in the same batch as Heroes' Dreadnaught Gauntlets: the same quest line, zone, vendor or reward set.