Genuine, OEM, Replacement, Or Aftermarket?

If you’ve ever had a part fail on your vehicle, you may know that there are a few different types of replacement parts. From OEM auto parts, to replacement, aftermarket, and genuine - this selection alone can be overwhelming. What does all of these terms mean?

Genuine: This is a part that was originally put on your car when it was brand new. These are usually the most expensive parts and we suggest only using them when they’re still under warranty and you don’t have to pay for it. While some people think they have to use a genuine part so that they don’t void their warranty, this simply isn’t true.


OEM: Like we’ve mentioned before, these parts were built by the company that originally made it for the car / car company. It’s the exact same part that came in or on your car when you bought it. If your car is less than 3 or 4 years old select an OEM part when the repair is not covered under warranty and you have to pay for it yourself.


Aftermarket: These parts are not made by the original car manufacturer but rather another company with no relation to the original manufacturer. Oftentimes these companies buy the rights to make these auto parts. Sometimes, if your car is older than 3 or 4 years old, an aftermarket auto part may be the best choice for you.

Rebuilt or Re-manufactured: These are parts that have been cleaned and possibly even slightly repaired when needed (replaced nuts or gaskets). Compared to new parts, these are very inexpensive but they will have some level of wear.