Rear Shock Absorber for 2017-2021 BMW 230i & More - KYB 3448018

Help bring back the ride control, stability and handling your BMW was designed with using this KYB shock absorber, part number 3448018, a nitrogen gas-charged Excel-G unit for the rear suspension. It fits many vehicles, among them the 2017-2021 BMW 230i, 2017-2020 BMW 230i xDrive and 2017-2020 BMW 430i, as a direct-fit replacement for the listed applications.

Comfort matters, but the ride control, stopping, lane-change responsiveness and handling of the vehicle matter more. KYB is a leading supplier of shocks and struts to new-vehicle manufacturers. The KYB Excel-G shock absorber is built on the same KYB OE assembly lines with the same OE-quality components. It is calibrated to help restore the vehicle's original designed performance rather than change it. That earns it KYB's OEA (Original Equipment for the Aftermarket) classification, and KYB lists it as a recommended OE replacement.

• Twin-tube gas design: This KYB gas shock absorber is nitrogen gas-charged and uses a twin-tube layout.
• Triple-lip fluid seal: Designed to reduce the chance of oil and gas leaking out.
• Vehicle-specific damping valves: Hand-assembled in-house to manage tire contact, steering response and body movement.
• Internal anti-rollover spring: Built into the shock. It may make the extended length appear shorter when measured.

A suspension shock absorber controls spring and body motion. Electronic safety systems rely on the suspension, brakes and tires working as the vehicle manufacturer intended, and the Excel-G is designed to help keep those systems performing as designed. See the Buyer's Guide tab for the full list of vehicles and engines.

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