{"product_id":"bilstein-22-306623-suspension-strut-assembly-front-left","title":"Bilstein 22-306623 Suspension Strut Assembly - Front Left","description":"\u003ch2\u003eBilstein B4 OE Replacement Front Left Strut\u003c\/h2\u003e\u003cp\u003eThe Bilstein B4 OE Replacement suspension strut assembly is built to restore original ride quality and handling on select BMW applications. This front left unit uses a twin-tube internal design with a black painted finish and OE-style mounting points for a direct replacement on supported vehicles.\u003c\/p\u003e\u003cp\u003eFor drivers searching for a Bilstein 22-306623 front left strut for BMW 330i xDrive, M340i xDrive, 430i xDrive, or M440i xDrive, this B4 OE Replacement part is engineered to meet or exceed OE standards while maintaining factory ride characteristics.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBilstein B4 OE Replacement series\u003c\/li\u003e\n\u003cli\u003ePart number 22-306623\u003c\/li\u003e\n\u003cli\u003eFront left suspension strut assembly\u003c\/li\u003e\n\u003cli\u003eTwin-tube internal design\u003c\/li\u003e\n\u003cli\u003eBlack painted finish\u003c\/li\u003e\n\u003cli\u003eStem upper mount and base cup lower mount\u003c\/li\u003e\n\u003cli\u003eBoot not included\u003c\/li\u003e\n\u003cli\u003eOE-style replacement for factory ride and handling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details\u003c\/h2\u003e\u003cp\u003eThe Bilstein B4 OE Replacement line focuses on restoring original suspension behavior for vehicles that left the factory with a specific ride and damping feel. This series is aimed at drivers who want a direct OE replacement strut assembly rather than a performance-tuned upgrade, making it a practical choice for maintaining factory-like comfort and control.\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2021-2025 BMW 430i xDrive, front left, sport suspension without electronic suspension; B4 OE Replacement.\u003c\/li\u003e\n\u003cli\u003eFits 2025 BMW M440i xDrive, front left, sport suspension without electronic suspension; B4 OE Replacement.\u003c\/li\u003e\n\u003cli\u003eFits 2019-2024 BMW 330i xDrive, front left, sport suspension without electronic suspension; B4 OE Replacement.\u003c\/li\u003e\n\u003cli\u003eFits 2020-2024 BMW M340i xDrive, front left, without electronic suspension; B4 OE Replacement.\u003c\/li\u003e\n\u003cli\u003eFits 2021-2024 BMW M440i xDrive, front left, without electronic suspension; B4 OE Replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront-end ride harshness from a worn strut\u003c\/li\u003e\n\u003cli\u003eExcessive bouncing after bumps or dips\u003c\/li\u003e\n\u003cli\u003eReduced steering stability and road control\u003c\/li\u003e\n\u003cli\u003eUneven suspension response on the front left corner\u003c\/li\u003e\n\u003cli\u003eFactory ride quality loss on BMW xDrive sport suspension setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstall this strut on the front left position only and verify that the vehicle is equipped with the listed suspension configuration before ordering. This part cross-references BMW OE numbers 31 31 6 879 311 and 31 31 6 879 313 for the same application. Because the upper mount is stem-style and the lower mount is a base cup design, confirm the original mounting layout during service and inspect related suspension components at the same time.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eBilstein manufactures the B4 OE Replacement line to meet or exceed OE standards, with a focus on restoring original ride quality and handling characteristics. The part number 22-306623 is built as an OE-style replacement for supported BMW applications.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":52401904910517,"sku":"BBGL-22-306623","price":177.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/B5_22306623_Fro.jpg?v=1777762537","url":"https:\/\/www.partcatalog.com\/products\/bilstein-22-306623-suspension-strut-assembly-front-left","provider":"PartCatalog","version":"1.0","type":"link"}