The Bilstein B8 Performance Plus 24-143981 is a rear right monotube shock absorber for the BMW X5, listed for the 2007 X5 3.0si. It uses a 46mm monotube body from Bilstein's B8 line, which is the platform behind the brand's sport-tuned shock packages. If your stock shock is worn, this is a stronger choice than a budget unit when you want consistent damping and better body control on spirited back roads or track days. Expect to pay more than generic replacements, and buy it as a matched pair with the left side so both rear shocks respond the same way.
Before ordering, confirm fitment against your VIN, since the X5 trim, drivetrain, and suspension setup all affect which shock applies. Replace rear shocks in pairs, and support the rear securely on jack stands with a hydraulic jack under the trailing arm to hold the wheel carrier while the shock is removed. Searching for 2007 BMW X5 3.0si rear shock, Bilstein B8 24-143981 rear right, E70 X5 monotube shock upgrade, or BMW X5 rear shock DIY replacement will help you find matching install guidance.
This is a moderate-difficulty rear job that most home mechanics can complete with a standard socket set, a torque wrench, a wire brush, penetrating oil, and a hydraulic jack. Chock the front wheels, loosen the wheel bolts before lifting, and raise and support the rear on jack stands. Clean the lower and upper fasteners thoroughly before removal, since seized hardware is the most common delay. Replace self-locking nuts and worn mount hardware when the shock comes out, and check the torque specification in a BMW repair manual before final tightening.
