It is very nice that you still can buy spare parts for your more then 20 year old fridge. The fridge is made to last forever, but the hinge broke after 18 years. Now I bought twice a ne hinge set, but that is a very poor quality that lasts somewhere between six weeks and a few months.
the metal innerparts just breaks. Of course a fridge door gets opened a lot of times a day, but it should be 'up to the jobb'.