Norcold Fridge Door Reinforcement Brackets Installed

pauldub wrote:
Do these reinforce the part of the hinge that is attached to the door or the part that attaches to the fridge box?

I believe the reinforcement component works by transferring much of the weight of the door directly to the fridge's "fixed" mating metal hinge bracket. I am sure the original plastic hinge still carries a load, but now nicely shared with the added bracket.