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The Bilstein B4 OE replacement air suspension strut for 2018–2019 Mercedes‑Benz S450 (rear left) replaces the original rear air unit and plugs into the factory connectors to recover the vehicle’s designed ride. Combining an air spring with a monotube shock absorber, this OE-quality damper is built from new components to restore original comfort, handling and reliable long-term function.
Bilstein 18-19 Mercedes-Benz S450 B4 OE Replacement Air Suspension Strut - Rear Left
