{"product_id":"bilstein-21-031144-suspension-strut-cartridge-front","title":"Bilstein 21-031144 Suspension Strut Cartridge - Front","description":"\u003ch2\u003eBilstein B4 OE Replacement Suspension Strut Cartridge Overview\u003c\/h2\u003e\u003cp\u003eThe Bilstein shock absorbers part number 21-031144 is designed specifically for BMW 735i, 735iL, 740i, 740iL, and 750iL models. This suspension strut cartridge offers a reliable twintube internal design with a black paint finish, engineered to restore original ride comfort and handling characteristics.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 735i, 735iL, 740i, 740iL, and 750iL\u003c\/li\u003e\n\u003cli\u003ePart number 21-031144 for precise fitment\u003c\/li\u003e\n\u003cli\u003eTwintube internal design for consistent damping\u003c\/li\u003e\n\u003cli\u003eBlack paint finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eSpecial lower mount and stem upper mount types\u003c\/li\u003e\n\u003cli\u003eBoot not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the B4 OE Replacement Product Line\u003c\/h2\u003e\u003cp\u003eThe Bilstein B4 OE Replacement line is engineered to meet or exceed original equipment specifications. This product line focuses on restoring the original driving dynamics and comfort of your vehicle by using OE-style components and designs. The B4 series is ideal for drivers seeking a direct replacement that maintains factory performance without modification.\u003c\/p\u003e\u003ch2\u003eProduct Details and Features\u003c\/h2\u003e\u003cp\u003eThis Bilstein suspension strut cartridge features a twintube internal design, which provides reliable and consistent damping performance suitable for daily driving conditions. The black paint finish offers protection against corrosion, extending the service life of the strut. The special lower mount type and stem upper mount type ensure proper fitment and secure installation on compatible BMW models. Note that this strut cartridge does not include a boot.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores original ride comfort and handling on BMW 735i, 735iL, 740i, 740iL, and 750iL\u003c\/li\u003e\n\u003cli\u003eReplaces worn or leaking suspension struts causing poor vehicle stability\u003c\/li\u003e\n\u003cli\u003eEliminates excessive body roll and uneven tire wear\u003c\/li\u003e\n\u003cli\u003eAddresses noise and vibration issues related to faulty strut cartridges\u003c\/li\u003e\n\u003cli\u003eImproves overall suspension response and road feedback\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure compatibility with your specific BMW model before installation. The special lower mount and stem upper mount require proper alignment and torque specifications during installation. It is recommended to have suspension components inspected and replaced in pairs to maintain balanced handling. Professional installation is advised to ensure safety and optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBilstein B4 OE Replacement shock absorbers are manufactured to meet original equipment standards, providing consistent quality and durability. While specific warranty details are not provided here, Bilstein products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to official Bilstein documentation for exact warranty terms.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":51953730289845,"sku":"BBGL-21-031144","price":143.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/B5_21031144_Fro.jpg?v=1775061574","url":"https:\/\/www.partcatalog.com\/products\/bilstein-21-031144-suspension-strut-cartridge-front","provider":"PartCatalog","version":"1.0","type":"link"}