You only need the wow model viewer.
- 1.- Open the wow model viewer.
- 2.-Click on character, then select any of them.
- 3.-Equip the items. In the filter you can put both the name as the item id:
- 4.- Now file>Export textures:
- 5.- Search the textures of the item and select export:
- 6.- In the folder where is installed wow model viewer must be one named Export , in it there is the texture :