Sometimes people think that second hand auto parts are of low quality or they don’t have the efficiency required or something of that sort. This could be true and could also not be true depending on where you buy the second hand auto part from. There are rules that govern the use of spare parts in vehicles and every supplier of sound mind normally adheres to parts that are going to make your car roadworthy and have a stunning performance. You actually don’t have to buy it from the quacks because that is where second hand parts are cheap and they could end messing the quality of your car. Source send hand parts from the reliable suppliers who value quality and efficiency instead of the money they take.
It also depends on which part you want you want to buy. Some parts are better bought when new rather than when already used. Think of brake pads, you would be putting yourself into great danger if you buy used break pads. Think of the engine parts, engine is the most vital part of every car. If you buy a second hand engine that means the performance of your car is not going to be outstanding for a long time. You can buy second hand windscreens, side mirrors or steering because they are dependent parts that do not determine the performance of a car and its safety.
You can have the car tested for safety and efficiency once the new second hand part has been installed. This is to be sure that the installed part is within the line of excellence. If not, you can ask for its uninstallation to avoid threatening your life at all times.