This is a 100% brand new power window motor. Each unit comes pre-tested and comes with a limited lifetime warranty. These perform exactly like the original units did when the car was new. Designed with extra strength to prevent premature failure that results from improperly lubricated window lift regulators.All window motors are lubricated with the precise amount of grease for quiet operation. Gears are made from reinforced composite materials which last longer and resist stripping. Window motors come with attaching hardware.