Dorman 740-416 Window Regulator - Rear Left

Reliable Window Regulator for BMW 528i and 540i

The Dorman 740-416 window regulator is designed to restore smooth electric window operation in your BMW 528i or 540i. Engineered with durable materials, this power window regulator offers a bolt-on attachment for straightforward replacement.

Key Features of Dorman 740-416 Window Regulator

• Gear material constructed from plastic for consistent performance
• Frame made of both metal and plastic components for strength and durability
• Bolt-on attachment type ensures secure mounting without modification
• Electric window operation compatible with factory power systems
• Includes one power regulator unit without motor or mounting hardware

Detailed Product Description

The Dorman 740-416 window regulator is specifically designed for BMW 528i and 540i models, providing a direct replacement for the factory electric window regulator. The combination of a metal and plastic frame offers a balance of rigidity and lightweight construction, while the plastic gear material reduces noise and wear during operation. This part is intended for vehicles with electric window systems and does not include a motor, making it ideal for users who need to replace the regulator mechanism only. The bolt-on attachment type allows for a secure fit using existing mounting points, simplifying the installation process.

Common Issues Addressed by This Window Regulator

• Window glass failing to move up or down smoothly
• Intermittent or complete loss of electric window function
• Grinding or unusual noises during window operation
• Window becoming stuck in one position
• Worn or broken regulator gears causing window misalignment

Installation Notes and Tips

Installation of the Dorman 740-416 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware is not included, retain original bolts or source compatible fasteners. This part does not come with a motor, so ensure the existing motor is functional or replaced separately. Refer to vehicle-specific repair manuals for detailed instructions, as installation complexity can vary depending on the BMW 528i or 540i model year.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. While this window regulator does not include a motor or mounting hardware, it is built with durable materials to provide reliable service. Please consult the product packaging or Dorman’s official resources for warranty details applicable to part number 740-416.