fuel carrier

This is probably a silly question, my local dealer has this discounted a lot. Anyone know what model it is for and where it is supposed to mount? https://autoparts.toyota.com/products/product/tank-assy-auxiliary-fuel-7711060011#popup-1

Hello - hoping to find a good home for this tire carrier and gas carrier. the tire carrier on the upper bolt/hinge had been welded to the body because it was tearing the body ( which is why I removed it). So .. that hinge is scoffed. I'm wanting $500 for the both. Shipping I on the buyer if...