Window Glasses Lifter Motor Window Actuator for Buick for Excelle. The regulator gear and the assist spring will help to move window as the motor moves forward or backward. Replace the damage window motor in time so that no worry about stucked window. After installing this glass regulator, the windows can be raised and lowered as smooth as silk. This glass regulator low noise eliminates the trouble of using the window lifter, providing a comfortable experience for drivers and passengers., Manufacturer: SASAKLY