Just like repairing your car with used parts can save you a lot of money, so can repairing your RV with salvaged parts. Especially since new RV parts seem to cost way more than they are worth.
I have replaced, a furnace and a fifth wheel landing gear motor with salvage parts, and purchased replacements and additional light fixtures from RV salvage yards at bargain prices.
For older RVs, RV salvage yards may be the only source for special parts like Luan panels, ceiling panels, windows, doors, interior trims, exterior molding and fender skirts.
RV Salvage yards do there best to check electrical and mechanical parts they sell but if you’ll be picking the parts up at the yard, ask for a bench test before paying.
If you will need to have the parts shipped, try to buy from the closest salvage yard to reduce shipping costs. Always pay with a credit card so you can contest the purchase if the parts arrive D.O.A.