Bilstein B4 Shock Absorber (Front Left) - BMW 3 Series E90 20-1640 4AN ORB drain

4AN ORB drain

30psi boost

The iE polymer lid comes with pre-threaded mounting points and includes a complete set of stainless bolts and washers for a hassle-free installation

EVA Molded

Bilstein B4 Shock Absorber (Front Left) - BMW 3 Series E90 20-1640 4AN ORB drainBilstein B4 The Bilstein B4 is available for practically any model of passenger car in both mono tube and twin tube shock absorber versions! Product Features High power reserves for maximum safety Optimum driving experience as on day one Constant damping power under any load High traction and precise handling thanks to Bilstein gas pressure technology Vehicle Fitment BMW 3 Series E90 2004 2013 RWD FL