AISIN's original equipment technology and know-how is applied to the design and engineering of its entire line of clutch hydraulic components. Their quick response design reacts rapidly, with a consistent and progressive feel, to the driver's clutch pedal inputs, as expected from an OEM component. Anodizing and "Kanizen" plating of cylinder bores strengthens the bore surface for long life, ensures smooth operation of the piston, and resists corrosion. Heat resistant and extended life Ethylene Propylene Rubber (EPDM) seals prevent leakage. Made in Japan. 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.