{"product_id":"bilstein-44-239985-air-suspension-strut-rear-left","title":"Bilstein 44-239985 Air Suspension Strut - Rear Left","description":"\u003ch2\u003eBilstein B4 OE Replacement Air Suspension Strut Overview\u003c\/h2\u003e\u003cp\u003eThe Bilstein 44-239985 air suspension strut is engineered for precise fitment on Mercedes-Benz S550 and S550e models. Designed to restore original ride comfort and handling, this monotube air strut offers reliable performance with a durable black paint finish.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMonotube internal design for consistent damping\u003c\/li\u003e\n\u003cli\u003eBlack paint finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eLower mount type: Eye for secure attachment\u003c\/li\u003e\n\u003cli\u003eUpper mount type: Multiple studs for stable installation\u003c\/li\u003e\n\u003cli\u003eBoot not included\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercedes-Benz S550 and S550e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the B4 OE Replacement (Air) Product Line\u003c\/h2\u003e\u003cp\u003eThe B4 OE Replacement (Air) series by Bilstein is developed to meet original equipment specifications for air suspension components. This product line focuses on delivering direct-fit air suspension struts that maintain factory ride quality and handling characteristics. The 44-239985 part number is part of this line, ensuring compatibility and performance aligned with Mercedes-Benz standards.\u003c\/p\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis Bilstein air suspension strut features a monotube internal design, which provides consistent damping and improved heat dissipation compared to twin-tube designs. The black paint finish offers protection against corrosion, extending the service life of the strut. The lower mount is an eye type, while the upper mount uses multiple studs, ensuring a secure and precise fit on the vehicle. Note that this strut does not include a protective boot.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores factory ride height and suspension performance on Mercedes-Benz S550 and S550e\u003c\/li\u003e\n\u003cli\u003eAddresses uneven or sagging suspension due to worn air struts\u003c\/li\u003e\n\u003cli\u003eImproves vehicle handling and stability compromised by faulty suspension components\u003c\/li\u003e\n\u003cli\u003eEliminates air suspension warning lights caused by defective struts\u003c\/li\u003e\n\u003cli\u003eReplaces damaged or leaking air suspension struts to prevent further suspension system issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure compatibility with Mercedes-Benz S550 or S550e before installation. The multiple stud upper mount and eye-type lower mount require proper alignment and torque specifications as per manufacturer guidelines. Since the boot is not included, inspect the existing boot for damage and replace if necessary to protect the strut. Professional installation is recommended to maintain suspension integrity and safety.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBilstein manufactures the 44-239985 air suspension strut to meet OE standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Bilstein products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer for complete information.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":51955984040117,"sku":"BBGL-44-239985","price":1519.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/B5_44239985_Fro.jpg?v=1775061892","url":"https:\/\/www.partcatalog.com\/products\/bilstein-44-239985-air-suspension-strut-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}