Bilstein B4 2004 BMW 525i Base Front Twintube Strut Assembly

Bilstein shocks and suspension are stocked at Black Ops Auto Works across the full product range, including B4 OE replacement shocks, B6 performance shocks, B8 5100 ride height adjustable shocks, B8 6112 and 8112 suspension kits, B8 TerraSport lift kits, B12 Pro-Kit systems, B14 coilovers, B16 DampTronic suspension, and EVO Series kits. Every product is filterable by year, make, model, trim, and drivetrain so the correct Bilstein part ships the first time. Black Ops Auto Works carries 2,108 Bilstein SKUs spanning trucks, SUVs, crossovers, and European performance platforms. What This Collection Covers Bilstein is a monotube shock and suspension manufacturer known for consistent damping control across a wide range of applications, from OE-style replacement to serious off-road lift setups to European performance suspension. Product Categories B4 OE replacement shocks and struts, B6 performance shocks, B8 5100 and 5160 shocks, B8 6100 and 6112 suspension kits, B8 8100 and 8112 rese...

Shocks and struts for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop front and rear shocks, loaded strut assemblies, monotube shocks, twin-tube shocks, reservoir shocks, and steering dampers for daily drivers, lifted trucks, tow rigs, off-road builds, and muscle cars on Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and EcoBoost platforms. Every shock and strut is filterable by year, make, model, trim, drivetrain, front or rear position, and ride height so the correct part ships the first time. Black Ops Auto Works carries 5,188 shock and strut SKUs across construction type, application, and vehicle use. What This Category Covers Shocks and struts damp spring oscillation so the tire stays planted on the road and are the most common suspension replacement job on any vehicle. A shock absorber is a standalone damping unit that bolts between the chassis and axle or lower control arm. A strut is a structural suspension member that combines damping with the sp...

Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...