The BMW 550i is a part of the 5 series line of cars and falls into the seventh generation in the lineup, which is the current generation that is in production. Sales of the vehicle began in 2017.
Your BMW 550i is going to need replacement parts at some point. It's inevitable: wear and tear will occur on your vehicle at some point. Maybe you'll even get into an accident or fender bender and need some new parts. When this happens, you want to make repairs with the best quality components so that you can extend the life and performance of your car. This is where OEM parts come into play - aka, original equipment manufactured. These parts are exactly the same as the ones your vehicle was built with in the first place. This means that you Don't have to worry about if They'll fit your BMW or not. They will - they're from the same factory. they're also guaranteed (usually with a warranty) to work identically.
Don't spend too much time looking around for the OEM parts you need. The process doesn't have to be complicated - we've simplified it here on our web store by breaking things into category and allowing you to narrow your search by model year.