WAI WPR1174LMB Window Motor and Regulator Assembly - Rear Left

Reliable Window Motor and Regulator Assembly for BMW 528i and 540i

The WAI WPR1174LMB window motor and regulator assembly is designed specifically for BMW 528i and 540i models. This component ensures smooth and consistent operation of your vehicle's power windows, restoring functionality and convenience.

• Compatible with BMW 528i and 540i models
• Direct replacement window motor and regulator assembly
• Durable construction for long-lasting performance
• Part number WPR1174LMB for precise fitment

Product Details and Compatibility

This WAI window motor and regulator assembly (part number WPR1174LMB) is engineered to meet the specifications of BMW 528i and 540i vehicles. It replaces the factory-installed window motor and regulator, providing reliable power window operation. The assembly is designed to integrate seamlessly with the existing window system, ensuring proper alignment and smooth movement. This part is essential for maintaining the electrical and mechanical function of your vehicle's windows.

Common Applications and Problem Resolution

• Restores power window operation in BMW 528i and 540i models
• Replaces faulty or worn window motor and regulator assemblies
• Eliminates window sticking or slow movement issues
• Addresses non-responsive power window switches related to motor failure
• Prevents window from falling inside the door panel

Installation Notes and Tips

Installation of the WAI WPR1174LMB window motor and regulator assembly requires removal of the door panel and disconnection of the existing window motor. Ensure the vehicle's battery is disconnected before beginning work to avoid electrical hazards. Proper alignment of the regulator assembly is critical for smooth window operation. It is recommended to test the window function before reassembling the door panel to confirm correct installation.

Quality Assurance and Warranty

WAI manufactures this window motor and regulator assembly to meet OEM standards for fit and function. While specific warranty details are not provided, WAI products typically undergo quality control testing to ensure durability and performance. Using the correct part number WPR1174LMB guarantees compatibility with BMW 528i and 540i models, supporting reliable vehicle operation.