Bilstein B3 Rear Coil Spring (40-231990) - BMW E39AM HO and uneven surfaces—ideal for adventure

and uneven surfaces—ideal for adventure

Bilstein B6 4600 is the trusted choice for upgrading suspension performance without compromising everyday comfort—engineered to work as hard as your vehicle does

and load handling—especially when towing or carrying cargo

As the industry’s leading gas pressure shock absorbers

Bilstein B3 Rear Coil Spring (40-231990) - BMW E39AM HO and uneven surfaces—ideal for adventureIf you're looking for quality, look no further. By choosing BILSTEIN springs, you're backing an uncontested champion: a successful motor sports fitter and a leading original equipment manufacturer of automotive springs. The benefits of BILSTEIN B3 shock absorbers are: Innovative technical designs, such as Pigtail ends, Minibloc forms and central force design High quality chrome vanadium or chrome silicone steel for an extremely high level of break