The Bilstein B6 24-291231 is a rear shock absorber from the manufacturer's B6 line, sold as a replacement for the Mazda CX-5. The manufacturer describes B6 units as using a velocity-sensitive, digressive piston, and each B6 unit is tuned for its specific application. For a driver replacing a tired rear damper, that application-specific tuning is the main reason to choose this over a generic bolt-on unit or a budget shock that was not matched to the vehicle. The B6 design targets consistent, fade-free performance, which matters on mountain roads, repeated hard stops, and loaded highway trips where a worn stock damper loses control first.
Pricing is the trade-off to weigh. The manufacturer's B6 line carries a limited lifetime warranty, which helps justify the spend over a short-warranty aftermarket shock. This unit is non-adjustable and finished in yellow, so it suits buyers who want a drop-in, OE-style upgrade rather than a coilover-style damping kit. Search terms like "Bilstein B6 CX-5 rear shock replacement," "CX-5 velocity sensitive rear damper," and "2017 CX-5 rear shock upgrade" match what this product delivers. Because a CX-5 rear shock swap is a common DIY job, confirm the model year and trim against your VIN before ordering, since listed fitment varies between sources. Replace in pairs so both rear corners damp the same way.
Fitment information varies. Some listings name 2017-2020 CX-5 models, while others list 2017-2024 with specific submodels. Confirm the year and trim with the manufacturer before ordering.
The manufacturer lists the B6 shock of this type as non-adjustable, so there are no external damping settings to change.
The manufacturer offers a limited lifetime warranty on the B6 line, which covers defects and premature failure.