{"product_id":"aci-81778-window-regulator","title":"ACI 81778 Window Regulator - Rear Left","description":"\u003ch2\u003eReliable Rear Left Power Window Regulator for Mercedes-Benz\u003c\/h2\u003e\u003cp\u003eThe ACI 81778 power window regulator is designed specifically for the rear left door of select Mercedes-Benz models. Engineered to meet or exceed OEM standards, this new window regulator ensures smooth and consistent window operation for your vehicle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Mercedes-Benz E55 AMG, E300, E320, E420, and E430 models\u003c\/li\u003e\n\u003cli\u003eRear left mounting position for precise fitment\u003c\/li\u003e\n\u003cli\u003ePower window operation type for effortless control\u003c\/li\u003e\n\u003cli\u003eNew part, not remanufactured\u003c\/li\u003e\n\u003cli\u003eMounting hardware and motor not included\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds original equipment manufacturer specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the ACI Window Regulator Product Line\u003c\/h2\u003e\u003cp\u003eThe ACI Window Regulator line focuses on delivering reliable and durable window regulators tailored to specific vehicle applications. This product line emphasizes quality construction and compatibility, providing replacement parts that maintain the original functionality of your vehicle’s power windows. The 81778 part number is part of this line, designed to restore proper window operation on the rear left door of compatible Mercedes-Benz models.\u003c\/p\u003e\u003ch2\u003eProduct Details and Features\u003c\/h2\u003e\u003cp\u003eThis power window regulator is a new replacement part intended for the rear left door of Mercedes-Benz E55 AMG, E300, E320, E420, and E430 vehicles. It operates with power window systems but does not include the motor or mounting hardware, which must be sourced separately. The part is manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. Installing this regulator will restore smooth window movement and proper alignment within the door frame.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Window Regulator\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWindow stuck in the up or down position\u003c\/li\u003e\n\u003cli\u003eSlow or uneven window movement\u003c\/li\u003e\n\u003cli\u003eWindow falling inside the door panel\u003c\/li\u003e\n\u003cli\u003eGrinding or unusual noises during window operation\u003c\/li\u003e\n\u003cli\u003eFailure of the rear left power window to respond\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify the mounting position as rear left before installation\u003c\/li\u003e\n\u003cli\u003eMotor and mounting hardware are not included; ensure you have compatible components\u003c\/li\u003e\n\u003cli\u003eHandle the regulator carefully to avoid bending or damaging the mechanism\u003c\/li\u003e\n\u003cli\u003eFollow vehicle-specific service manual instructions for removal and installation\u003c\/li\u003e\n\u003cli\u003eTest window operation before reassembling the door panel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe ACI 81778 window regulator is a new part that meets or exceeds OEM specifications, providing dependable performance for your Mercedes-Benz vehicle. While mounting hardware and motor are not included, the regulator itself is manufactured to strict quality standards. Please refer to the product warranty information provided by the manufacturer for coverage details.\u003c\/p\u003e","brand":"ACI","offers":[{"title":"Default Title","offer_id":45294360428725,"sku":"BDDV-81778","price":70.65,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WR_81778_Fro_ef7dfed4-bb7b-46e9-8aef-583548c60cdc.jpg?v=1775143038","url":"https:\/\/www.partcatalog.com\/products\/aci-81778-window-regulator","provider":"PartCatalog","version":"1.0","type":"link"}