Primal Gladiator's Linked Spaulders is part of the transmog set Primal Gladiator's Ringmail Armor (Shaman only), which the Appearances collection lists in 2 versions. The other 16 pieces:
Items Numbered Next to Primal Gladiator's Linked Spaulders
Blizzard numbers items as they are created, so the named items next to ID 115940 (115935 to 115945) were usually added in the same batch as Primal Gladiator's Linked Spaulders: the same quest line, zone, vendor or reward set.