WAI WPR4770LB Window Regulator - Rear Left

Reliable Window Regulator for BMW 5 Series Models

The WAI WPR4770LB window regulator is designed specifically for BMW 525i, 528i, 530i, 540i, and M5 models. This replacement part ensures smooth and consistent window operation, restoring functionality to your vehicle's door system.

• Compatible with BMW 525i, 528i, 530i, 540i, and M5 models
• OEM-quality window regulator for precise fit and performance
• Durable construction to withstand regular use
• Part number WPR4770LB for easy identification and ordering

Product Details and Compatibility

The WAI WPR4770LB window regulator is engineered to meet the specifications of BMW 5 Series vehicles, including the 525i, 528i, 530i, 540i, and M5. This part replaces the original window regulator, ensuring proper alignment and smooth window movement. Designed for the door assembly, it restores the ability to raise and lower the window glass reliably. The part number WPR4770LB helps confirm compatibility and simplifies the replacement process.

Common Issues Addressed by This Window Regulator

• Window glass stuck in one position or failing to move
• Intermittent or slow window operation
• Unusual noises during window movement
• Window falling down inside the door panel
• Complete window regulator failure preventing window control

Installation Notes and Tips

Installation of the WAI WPR4770LB window regulator requires removal of the door panel and careful handling of the window glass. It is recommended to disconnect the vehicle battery before beginning to avoid electrical issues. Proper alignment during installation is critical to ensure smooth window operation. Refer to the BMW service manual for detailed instructions specific to your model.

Quality Assurance and Warranty

WAI manufactures this window regulator to meet industry standards for durability and performance. While specific warranty details are not provided, WAI products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the supplier or manufacturer for your purchase.