Primal Gladiator's Dreadplate Helm is part of the transmog set Primal Gladiator's Dreadplate Armor (Death Knight only), which the Appearances collection lists in 2 versions. The other 6 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Primal Gladiator's Dreadplate Helm Fits
Other Items Named Primal Gladiator's Dreadplate Helm
2 other items in the current build are also called Primal Gladiator's Dreadplate Helm. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Primal Gladiator's Dreadplate Helm
Blizzard numbers items as they are created, so the named items next to ID 115839 (115834 to 115844) were usually added in the same batch as Primal Gladiator's Dreadplate Helm: the same quest line, zone, vendor or reward set.