Whether or not someone should buy used auto parts on eBay depends on that person's individual comfort level and preferences. The site allows users to purchase parts at a discounted rate compared to new parts, but doesn't offer the same protection against malfunction and fraud that other retailers do.
The first thing a buyer should consider when purchasing used parts on eBay is if she is willing to risk the possibility of the part not working. While some used parts do feature a warranty, many sellers do not offer services for returning faulty items. Buyers can take precautions to improve comfort, such as reading reviews to identify trustworthy sellers.