Built to raise and lower the front right window glass, the Dorman power window motor and regulator assembly 741-645 is an OE FIX replacement with added cable guides and sheathing that help resist reel binding. It fits many vehicles, among them the 1999-2006 Chevrolet Silverado 1500, 1999-2006 Chevrolet Silverado 2500 and 1999-2006 GMC Sierra 1500, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
Dorman notes that the original regulator can fail when its cable stretches over time. This window regulator and motor assembly addresses that weakness with several changes over the factory part:
Signs this part may need replacing include a window that moves slowly, stops partway, drops into the door, or grinds or clicks when the switch is pressed. If a failed regulator or motor is the cause, this front right assembly replaces both in a single unit.
What does the Dorman window regulator do?
It moves the front right window glass up and down. This assembly pairs the regulator with its power window motor, so both are replaced together.
Does this replace the 1999-2006 Chevy Silverado 1500 window motor?
Yes. It is listed for the front right position on the 1999-2006 Chevrolet Silverado 1500, and the "Vehicles it fits" section shows the full application details.
Which other trucks does it fit?
It also fits the 1999-2006 Chevrolet Silverado 2500 and the 1999-2006 GMC Sierra 1500, among many other vehicles. The "Vehicles it fits" section has the full list.
How is this Dorman window motor assembly improved over the original?
It adds cable tension springs and sheathing to help resist reel binding from a stretched cable, plus cable guides intended to reduce high cable tension and cable stretching.
What are signs the window regulator may be failing?
The window may move slowly, stop partway, drop into the door, or grind or click when you press the switch. Diagnose the cause before replacing the assembly.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
