Bilstein B1 Rear Mount (12-117123) - BMW 5, E39 HO and a firmer ride

and a firmer ride

Innovative technical designs

and handling precision—without stepping into full track-spec suspension

improved handling

Gas Pressure Technology: Prevents oil foaming and loss of damping power

Bilstein B1 Rear Mount (12-117123) - BMW 5, E39 HO and a firmer rideBilstein B1 Suspension Mounts OEM Quality, Perfect Fit Bilstein B1 mounts are high quality OE replacement components designed to support your shock or strut assembly while reducing vibration and noise. Built to the same standards as your vehicles original equipment, these mounts ensure precise fitment, optimal suspension performance, and long term durability. Direct OE Replacement: Engineered for a perfect fit on compatible vehicles. Reduced Noise &