{"product_id":"bilstein-2021-mercedes-benz-s500-s580-b4-oe-replacement-air-monotube-strut-front-left","title":"Bilstein 2021+ Mercedes-Benz S500\/S580 B4 OE Replacement (Air) Monotube Strut - Front Left","description":"\u003cdiv\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e44-400156\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 651860953748\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003eBilstein B4 OE Replacement (Air) Monotube Strut - Front Left for 2021+ Mercedes-Benz S500\/S580\/S580e\/Maybach S680\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eBilstein 44-400156\u003c\/strong\u003e B4 OE Replacement (Air) Monotube Strut is a direct, plug-and-play replacement for the front left air suspension strut on 2021+ Mercedes-Benz S-Class and Maybach models equipped with standard air suspension (without E-Active Suspension). As an OE supplier, Bilstein manufactures this strut to meet or exceed factory standards using 100% new parts for maximum reliability and safety. It connects directly to the vehicle’s original air lines and electrical connectors, restoring 100% original ride quality, self-leveling function, and comfort without any modifications. The monotube design with integrated air bladder delivers precise damping and long-term durability in a black painted finish.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRestores Original Functionality 100%\u003c\/li\u003e\n\u003cli\u003eManufactured with 100% New Parts for Maximum Reliability and Safety\u003c\/li\u003e\n\u003cli\u003e100% OE Quality and Comfort\u003c\/li\u003e\n\u003cli\u003eDirect Plug-and-Play Installation – No Modifications Required\u003c\/li\u003e\n\u003cli\u003eMonotube Internal Design with Integrated Air Bladder\u003c\/li\u003e\n\u003cli\u003eSelf-Leveling and Air Adjustable\u003c\/li\u003e\n\u003cli\u003eActive Suspension Compatible\u003c\/li\u003e\n\u003cli\u003eBlack Paint Finish for Corrosion Resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" width=\"100%\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e44-400156\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront Left\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eB4 OE Replacement (Air)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Type\u003c\/td\u003e\n\u003ctd\u003eAir Spring Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Design\u003c\/td\u003e\n\u003ctd\u003eMonotube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack Paint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Compression\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Rebound\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Ride Height\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Adjustable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-Leveling\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive or Passive Suspension\u003c\/td\u003e\n\u003ctd\u003eActive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBladder(s) Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBladder Heavy Duty Crimping Rings Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrut Mount Insulator(s) Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBladder Sleeve(s) Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes Bump Stop\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hardware Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade Type\u003c\/td\u003e\n\u003ctd\u003ePremium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProp 65 Warning\u003c\/td\u003e\n\u003ctd\u003eYes – Cancer \u0026amp; Reproductive Harm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 Years (Bilstein)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 18 to 22 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhats Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOne Front Left B4 OE Replacement (Air) Monotube Strut with Integrated Bladder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned exclusively for vehicles with standard air suspension (WITHOUT E-Active Suspension)\u003c\/li\u003e\n\u003cli\u003eDirect connection to factory air lines and connectors\u003c\/li\u003e\n\u003cli\u003eRestores factory ride height, comfort, and handling\u003c\/li\u003e\n\u003cli\u003eIdeal for replacing worn or leaking factory air struts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEstimated time: 1.5 to 3 hours (professional installation recommended)\u003c\/li\u003e\n\u003cli\u003eUtilizes factory mounting points and connectors – no modifications needed\u003c\/li\u003e\n\u003cli\u003eDepressurize air suspension system before removal per service manual\u003c\/li\u003e\n\u003cli\u003eProfessional alignment recommended after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2025\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd\u003eMaybach S680 4Matic\u003c\/td\u003e\n\u003ctd\u003eV12 6.0L\u003c\/td\u003e\n\u003ctd\u003eWithout E-Active Suspension \/ With Air Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2025\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd\u003eS500 4Matic\u003c\/td\u003e\n\u003ctd\u003eL6 3.0L\u003c\/td\u003e\n\u003ctd\u003eWithout E-Active Suspension \/ With Air Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2025\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd\u003eS580 4Matic\u003c\/td\u003e\n\u003ctd\u003eV8 4.0L\u003c\/td\u003e\n\u003ctd\u003eWithout E-Active Suspension \/ With Air Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2025\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd\u003eS580e 4Matic\u003c\/td\u003e\n\u003ctd\u003eL6 3.0L Plug-In Hybrid\u003c\/td\u003e\n\u003ctd\u003eWithout E-Active Suspension \/ With Air Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose Bilstein B4 OE Replacement (Air) Strut?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExact OE supplier quality and direct-fit reliability\u003c\/li\u003e\n\u003cli\u003e100% new parts no core charges or remanufactured components\u003c\/li\u003e\n\u003cli\u003eRestores factory ride comfort and safety with zero modifications\u003c\/li\u003e\n\u003cli\u003eBacked by Bilstein’s reputation for premium European vehicle suspension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my Mercedes-Benz S-Class? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, if your vehicle has factory air suspension and does NOT have E-Active Suspension. Verify your model year and options before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this include the air bladder? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the integrated air bladder is included and ready for direct connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Covered by Bilstein’s 2-year warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping and Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS \/ FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure protective packaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 18 to 22 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":44529162027087,"sku":"BIL44-400156","price":1299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/bilstein-44-400156-strut.png?v=1772483416","url":"https:\/\/www.blackopsautoworks.com\/products\/bilstein-2021-mercedes-benz-s500-s580-b4-oe-replacement-air-monotube-strut-front-left","provider":"Black Ops Auto Works","version":"1.0","type":"link"}