Dorman 740-484 Window Regulator - Front Left

Overview of Dorman Window Regulator 740-484

The Dorman 740-484 window regulator is designed for electric window operation in select BMW models. This replacement part offers a bolt-on attachment type and is engineered with a combination of metal and plastic frame materials to ensure reliable performance.

• Compatible with BMW 323i, 325i, 325xi, 328i, 330i, and 330xi models
• Electric window operation type without motor included
• Bolt-on attachment for straightforward installation
• Durable frame constructed from metal and plastic components
• Plastic gear material for smooth window movement
• Package includes one power regulator without mounting hardware or installation instructions

Detailed Product Description

The Dorman 740-484 window regulator is a direct replacement part designed specifically for BMW 3 Series models including the 323i, 325i, 325xi, 328i, 330i, and 330xi. This regulator supports electric window operation but does not include the motor, making it suitable for vehicles where the motor remains functional or is replaced separately. The frame combines metal and plastic materials to balance strength and weight, while the plastic gear material helps reduce noise and wear during window movement. The bolt-on attachment type allows for a secure fit using existing mounting points, although mounting hardware is not included in the package.

Common Applications and Issues Resolved

• Fixes windows that fail to move up or down smoothly
• Replaces broken or worn window regulators causing window misalignment
• Addresses issues with electric window operation where the regulator is faulty but motor is intact
• Eliminates window rattling or slipping due to damaged regulator gears
• Restores proper window function in BMW 3 Series models listed

Installation Notes and Tips

• Installation requires removal of the door panel and disconnection of the window motor if present
• Use existing mounting hardware or source compatible bolts as mounting hardware is not included
• Carefully align the regulator frame to ensure smooth window operation
• Professional installation is recommended if unfamiliar with door panel disassembly
• Verify window motor functionality before installation since motor is not included

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 740-484 window regulator undergoes quality checks to ensure durability and reliable operation in BMW 3 Series vehicles. Warranty coverage details should be confirmed at the point of purchase, as it may vary by distributor.