The product is a genuine OEM rear left driver side spindle knuckle wheel hub for a 2017-2020 Mercedes SLC300. Made in Germany by Mercedes-Benz, this wheel hub and bearing assembly is a specific fitment for the rear left side of the vehicle. With OE/OEM part number A1720305, this high-quality part ensures proper steering and suspension performance for your Mercedes SLC300. Upgrade your vehicle with this reliable and durable wheel hub to maintain optimal driving performance.