{"product_id":"bilstein-21-030390-suspension-strut-cartridge-front","title":"Bilstein 21-030390 Suspension Strut Cartridge - Front","description":"\u003ch2\u003eReliable Suspension Strut Cartridge for Audi Vehicles\u003c\/h2\u003e\u003cp\u003eThe Bilstein B4 OE Replacement Suspension Strut Cartridge 21-030390 offers a direct-fit solution designed specifically for various Audi models. Engineered to restore original ride comfort and handling, this strut cartridge is ideal for maintaining your vehicle's suspension performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement suspension strut cartridge for Audi models\u003c\/li\u003e\n\u003cli\u003eBlack paint finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eTwintube internal design for consistent damping\u003c\/li\u003e\n\u003cli\u003eLower mount type: housing for secure installation\u003c\/li\u003e\n\u003cli\u003eUpper mount type: stem for precise fitment\u003c\/li\u003e\n\u003cli\u003eBoot not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Bilstein B4 OE Replacement Product Line\u003c\/h2\u003e\u003cp\u003eThe B4 OE Replacement line by Bilstein is engineered to meet or exceed original equipment specifications. This product line focuses on restoring the original driving characteristics of your Audi by using OE-quality components and designs. The B4 series is ideal for drivers seeking a reliable and durable suspension upgrade that matches factory performance without modification.\u003c\/p\u003e\u003ch2\u003eProduct Details and Features\u003c\/h2\u003e\u003cp\u003eThe Bilstein 21-030390 suspension strut cartridge features a twintube internal design, which provides consistent damping and improved ride quality. The black paint finish offers protection against corrosion, extending the service life of the strut. The lower mount type is housing, ensuring a secure and stable connection to the suspension assembly, while the upper mount type is stem, designed for precise fitment in compatible Audi models. Note that this strut cartridge does not include a boot.\u003c\/p\u003e\u003ch2\u003eCompatible Audi Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi 100 and 100 Quattro\u003c\/li\u003e\n\u003cli\u003eFits Audi 200 and 200 Quattro\u003c\/li\u003e\n\u003cli\u003eSuitable for Audi 5000 Quattro\u003c\/li\u003e\n\u003cli\u003eDesigned for Audi A6 and A6 Quattro\u003c\/li\u003e\n\u003cli\u003eCompatible with Audi S6 and V8 Quattro\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorn or leaking original strut cartridges causing poor ride quality\u003c\/li\u003e\n\u003cli\u003eReduced vehicle stability and handling performance\u003c\/li\u003e\n\u003cli\u003eUneven tire wear due to suspension component degradation\u003c\/li\u003e\n\u003cli\u003eExcessive body roll or noise from faulty struts\u003c\/li\u003e\n\u003cli\u003eRestoring factory suspension feel after component failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Bilstein 21-030390 suspension strut cartridge requires proper tools and knowledge of suspension systems. Ensure the vehicle is securely lifted and supported before removal of the old strut cartridge. Verify compatibility with your specific Audi model and year. Since the boot is not included, inspect the existing boot for damage and replace if necessary to protect the strut cartridge. Follow manufacturer torque specifications for mounting hardware.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eBilstein manufactures the 21-030390 suspension strut cartridge to meet OE standards, ensuring reliable performance and durability. The B4 OE Replacement line is designed for consistent quality and fitment. Warranty details should be confirmed with the supplier or manufacturer, as coverage may vary.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":51953730093237,"sku":"BBGL-21-030390","price":94.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/B5_21030390_Fro.jpg?v=1775061572","url":"https:\/\/www.partcatalog.com\/products\/bilstein-21-030390-suspension-strut-cartridge-front","provider":"PartCatalog","version":"1.0","type":"link"}