Dorman 742-449 Window Motor - Front Right

Reliable Window Motor Replacement for Chevrolet, GMC, and Isuzu

The Dorman 742-449 window motor is designed to restore smooth and efficient window operation for select Chevrolet, GMC, and Isuzu models. This window lift motor provides a direct replacement solution for vehicles requiring a durable and compatible motor assembly.

• Compatible with Chevrolet Canyon and Colorado models
• Fits GMC Canyon and Colorado vehicles
• Also compatible with Isuzu i-280, i-290, i-350, and i-370 models
• Includes window lift gear for seamless integration
• Hardwired/plug-in connection for straightforward installation
• Does not include regulator, mounting hardware, or wiring harness

Product Features and Specifications

The Dorman 742-449 window motor is engineered without embedded logic control, focusing on reliable mechanical operation. It comes with the window lift gear included, ensuring compatibility with the window regulator system of the specified vehicles. The motor uses a hardwired or plug-in connection type, facilitating a secure electrical connection without the need for additional wiring harnesses. Note that this part does not include the regulator or mounting hardware, so those components must be sourced separately if needed.

Applications and Common Issues Addressed

• Restores power window function on Chevrolet Canyon and Colorado trucks
• Replaces faulty window motors in GMC Canyon and Colorado models
• Solves slow or non-responsive window movement in Isuzu i-280, i-290, i-350, and i-370 vehicles
• Addresses grinding or unusual noises caused by worn window lift gears
• Eliminates intermittent window operation due to motor failure

Installation Notes and Tips

Installation requires removal of the door panel and disconnection of the existing window motor. Since mounting hardware and wiring harness are not included, retain original components or acquire replacements as necessary. The hardwired/plug-in design allows for direct electrical connection without splicing. Verify compatibility with your vehicle’s make and model before installation to ensure proper fitment.

Quality Assurance and Warranty Information

Dorman window motors are manufactured to meet or exceed OEM standards for fit and function. The 742-449 part number undergoes quality checks to ensure durability and reliable performance. Warranty coverage details should be confirmed through the original purchase source or Dorman’s official documentation.