An OEM auto part essentially means a part that is made specifically made by the original manufacturer. This means that you’re getting the original car part rather than an aftermarket car part. OEM can be seen as a certain standard, and it can be beneficial to look for OEM car parts because it essentially getting a spare part that was built specifically for your car.
These parts will be approved by all safety standards, and it’s important to look straight for these parts rather than cheaper and perhaps less safe car parts.
Each car manufacturer will supply various parts and its common for car parts to break over time, and seeking an OEM part will essentially mean you don’t have to worry about the part being unofficial or fake.