THE RISKS OF CHOOSING AFTERMARKET AUTO PARTS
Using parts that are from a third-party parts manufacturer or from a company that's not certified can go one of two ways. The parts may work well and they may serve the purpose you're looking for — or they may not. Parts and fluids that are not certified may or may not work, and are not guaranteed to work with your car while those that are certified are guaranteed. It's an important distinction to make as parts that don't fit are going to have to be sent back, or are going to have to be ordered again from another company to help make sure they're going to work.
Buick GMC OEM Parts vs. Aftermarket Parts