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The Bilstein B4 OE replacement shock for 2014–2018 BMW 640i xDrive (rear) is a twin-tube absorber that restores original ride comfort and handling for xDrive models. B4 dampers meet or exceed OE standards to return factory steering feel while providing Bilstein’s reliable construction. Twin-tube design delivers dependable damping, high power reserves for safety and a straightforward direct-fit replacement solution.
Bilstein 14-18 BMW 640i xDrive B4 OE Replacement Shock Absorber - Rear
