{"product_id":"dorman-749-621-window-regulator","title":"Dorman 749-621 Window Regulator - Front Left","description":"\u003ch2\u003eOverview of Dorman 749-621 Window Regulator for BMW Models\u003c\/h2\u003e\u003cp\u003eThe Dorman 749-621 window regulator is designed for electric window operation in select BMW vehicles. This replacement part is compatible with BMW 318i, 318is, 323i, 323is, 325i, 325is, 328i, 328is, and M3 models, providing reliable window control without the motor included.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGear material constructed from durable plastic\u003c\/li\u003e\n\u003cli\u003eBolt-on attachment type for secure mounting\u003c\/li\u003e\n\u003cli\u003eFrame made from a combination of metal and plastic for strength and flexibility\u003c\/li\u003e\n\u003cli\u003eElectric window operation compatible, motor not included\u003c\/li\u003e\n\u003cli\u003eIncludes one power regulator per package\u003c\/li\u003e\n\u003cli\u003eNo mounting hardware or installation instructions included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 749-621 window regulator is engineered to restore smooth and consistent window movement in compatible BMW vehicles. Featuring a plastic gear and a mixed metal and plastic frame, this part balances durability with lightweight design. The bolt-on attachment type ensures a straightforward and secure installation process. While the motor is not included, this regulator is designed to work seamlessly with the existing electric motor system in your BMW 318i, 318is, 323i, 323is, 325i, 325is, 328i, 328is, and M3 models. This part number 749-621 is a direct replacement component that maintains factory specifications for window operation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores electric window functionality in BMW 3 Series and M3 models\u003c\/li\u003e\n\u003cli\u003eReplaces worn or broken window regulators causing window misalignment or failure\u003c\/li\u003e\n\u003cli\u003eEliminates window noise or sticking during operation\u003c\/li\u003e\n\u003cli\u003eAddresses issues with window movement that is slow or unresponsive\u003c\/li\u003e\n\u003cli\u003eProvides a reliable solution for power window failure without replacing the motor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Dorman 749-621 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware and installation instructions are not included, it is recommended to have professional installation or consult a repair manual specific to your BMW model. Ensure the existing motor is functioning properly before installation, as this part does not include a motor. Use appropriate tools to bolt the regulator securely in place to avoid future issues.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards, ensuring compatibility and durability. The 749-621 window regulator undergoes quality checks to provide consistent performance in BMW 3 Series and M3 vehicles. Please refer to Dorman's official warranty policy for specific coverage details related to this part.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44076165628085,"sku":"BKKY-749-621","price":106.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_749621_Fro_6f4b1074-e27c-44f3-a13c-a2f41ce6f0eb.jpg?v=1775011168","url":"https:\/\/www.partcatalog.com\/products\/dorman-749-621-window-regulator","provider":"PartCatalog","version":"1.0","type":"link"}