Experience the ultimate in ride comfort and control with the Bilstein B4 Rear Left Air Suspension Strut, part number 44-239985. Specially engineered as an OE replacement, this air strut integrates seamlessly with your Mercedes-Benz S550, precisely matching the original factory standards. Crafted with Bilstein’s renowned quality, this strut employs a monotube shock absorber design, providing consistent dampening performance and better handling dynamics. Perfect for both DIY enthusiasts and professional mechanics, this air suspension strut ensures a straightforward modification-free installation. With no need for additional components or adjustments, it restores your vehicle's original handling characteristics and comfort levels. Ideal for those experiencing suspension sag, excessive bouncing, or uneven tire wear, replacing your worn-out strut with the Bilstein B4 guarantees superior stability and an enhanced driving experience.

• OE replacement ensures perfect fit for Mercedes-Benz
• Monotube shock absorber for better control
• Direct connect to original vehicle connectors
• Black paint finish for long-lasting durability
• Designed to restore original ride quality

Boot Included:	No
California Proposition 65:	WARNING Cancer & Reproductive Harm - www.P65Warnings.ca.gov
Finish:	Black Paint
Internal Design:	Monotube
Lower Mount Type:	Eye
Series:	B4 OE Replacement (Air)
Upper Mount Type:	Multiple Studs
Dimensions:	39in. x 7.9in. x 7.9in.
Weight:	25.1 lbs

• Bilstein: 222 320 73 13
• Bilstein - ThyssenKrupp Automotive Group_Bilstein: 222 320 73 13 89
• Bilstein: 222 320 53 13
• Bilstein - ThyssenKrupp Automotive Group_Bilstein: 222 320 53 13
• Bilstein - ThyssenKrupp Automotive Group_Bilstein: 222 320 73 13
• Bilstein: 222 320 73 13 89

• 2014-2017 Mercedes-Benz S550 | Position: Rear Left
• 2014-2017 Mercedes-Benz S550 | Position: Rear Left | Note: Without Active Body Control
• 2015-2017 Mercedes-Benz S550e | Position: Rear Left