Look Through Pictures For Any Imperfections. The product is an OEM BMW 4x Hub Center Cap endeckel Felgendeckel, with the manufacturer part number 6850834. This wheel center cap is designed for BMW vehicles and features the BMW emblem. Made in Germany, this hub cap has an outside diameter of 55mm. Perfect for replacing missing or damaged hub caps, this genuine BMW part ensures a perfect fit and sleek appearance for your vehicle's wheels.