Auctions: Auctions are fantastic places to find parts that are gently used. People strip their cars down for parts all the time (for various reasons) and many people sell those car parts online to the highest bidder. The best way to find auctions for the parts you are looking for is to search for the car part itself. If el pulpo auto parts do a car part auction search, the number of results you will get will be incredibly overwhelming. So first locate the part you want and then check out the auction sites listed for it. It will save you mountains of time.