Spell effects bound to this item, from first-party game data.
Where Spring Wilderling Harness Fits
Items Numbered Next to Spring Wilderling Harness
Blizzard numbers items as they are created, so the named items next to ID 186491 (186485 to 186497) were usually added in the same batch as Spring Wilderling Harness: the same quest line, zone, vendor or reward set.
Ascendant's AquilonID 186485 · Miscellaneous · item level 30"Teaches you how to summon this mount."