Ensures perfect fitment through reverse-engineering from Original Equipment's design. Many design improvements enhance the durability and the quality of the regulators and motors. From design through manufacturing more than 30 validations tests s the highest quality possible. All window regulators come with AISIN's fitting Instructions in multiple languages, AISIN's product image, the OE product image and an image of the inside of the door. Founded in 1965 to produce original equipment automotive parts, Aisin has grown into a 25+ billion global enterprise with approximately 70, 000 employees worldwide. Superior products through engineering excellence, progressive technological development, and dedication to service are some factors which have contributed to bringing Aisin to its position as a multiple-award-winning global leader in automotive parts.