Dorman 749-178 Window Regulator - Front Left

Overview of Dorman Window Regulator 749-178

The Dorman 749-178 window regulator is designed for electric window operation in select Toyota and Scion vehicles. This power window regulator provides reliable functionality for the Toyota RAV4 and Scion xA models, ensuring smooth window movement without the motor included.

• Compatible with Toyota RAV4 and Scion xA models
• Electric window operation type
• Durable metal and plastic frame construction
• Plastic gear material for consistent performance
• Bolt-on attachment type for secure installation
• Includes one power regulator unit

Product Features and Specifications

The Dorman 749-178 window regulator features a combination of metal and plastic frame materials that balance strength and weight. The plastic gear material is engineered to provide smooth engagement and reduce wear over time. This part is designed for electric window systems but does not include the motor, making it suitable for replacing the regulator mechanism only. The bolt-on attachment type allows for straightforward mounting using existing hardware, although mounting hardware and installation instructions are not included in the package.

Compatible Vehicles and Applications

This window regulator is compatible with electric window systems on the Toyota RAV4 and Scion xA models. It is intended for use when the existing window regulator has failed or is malfunctioning, restoring proper window operation without the need to replace the motor.

• Resolves window sticking or failure to move up and down
• Eliminates grinding or unusual noises during window operation
• Fixes window misalignment or uneven movement
• Addresses broken or stripped gears within the regulator
• Restores smooth electric window functionality

Installation Notes and Tips

Installation of the Dorman 749-178 window regulator requires removal of the door panel and careful handling of the window glass. Since mounting hardware and installation instructions are not included, it is recommended to retain original bolts and fasteners during disassembly. Professional installation or reference to a vehicle-specific repair manual is advised to ensure proper alignment and secure attachment of the regulator.

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 long-lasting service. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.