What's The Difference Between OEM And Aftermarket Parts?

Posted on: 28 June 2021

If you decide that you want to start working on your car, you need to figure out where to get the parts you need. For example, you can get them at auto shops, online, or even at salvage yards. Once you know where you are going to get the parts, there are other things that you are going to have to figure out. One of those things is the differences between OEM and aftermarket parts. Knowing the differences between the two things can help you decide which part is the right one for you and your needs. So, what are OEM and aftermarket parts and what are their differences?


OEM stands for original equipment manufacturer. These parts are made by the same company that made the parts that came in your car, whether that's the auto company or the company that provides the auto company with those parts. The part will be exactly like the part that is already in your car. You know that it will fit, you know that it will work, and it shouldn't be an issue when it is installed. You may pay more for these parts because they are made by the original manufacturer. You also may have a hard time finding the OEM part for certain cars. For example, if you have an older car, they may not make the part anymore, so it's going to be a lot harder for you to find it. 


Aftermarket parts are made by different companies. They are similar to the parts that came in your car, but they won't be the exact same thing. The goal of aftermarket parts is generally to fit into as many models of cars as possible. So, if your care needs a specific part, the aftermarket part will fit your particular model of car, as well as other models by the same company, and possibly cars made by other companies. Because the parts are designed to fit into as many makes and models as possible, the parts are generally less expensive because there are going to be many more choices, made by many more companies. 

If you are going to start working on your own car, you need to make sure that you are getting the right parts. There are a number of places where you can get your car parts. In addition to figuring out where you are going to get your parts, you are also going to need to decide whether you want OEM or aftermarket parts.