AISIN Manual Window Regulators offer exact fitment, through precision reverse-engineering of the OE manufacturer's original design, while incorporating improvements that enhance durability and quality. With superior OE technology and know-how, AISIN ensures that every window regulator provides perfect form, fit and function, and is ready to install, right out of the box - no modifications required. AISIN window regulators undergo rigorous testing - more than 30 validation tests - throughout the entire design and manufacturing process, to guarantee the highest quality component possible. All window regulators come with AISIN's comprehensive installation instructions - in multiple languages - which include helpful images of the AISIN part, OE part, and 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.