
When I worked as a mechanic, I would be very hesitant to put cheap replacement parts in cars, and it wasn’t because I was trying to make more money. You might think you’re being savvy by choosing a cheap part, but that’s not always the case. Most mechanics won’t even let you bring your parts in. That’s because cheap parts can compromise safety, performance, and even your wallet in the long run. Not to mention, it can harm the mechanic’s reputation if things go wrong. Here are 10 reasons that mechanics fear cheap replacement parts, and likely won’t even use them.