Vacuum Switching Valves (VSV) are controlled by the Engine Control Module (ECM) or other control systems, which receives input from various engine management sensors to determine the appropriate flow of vacuum to the engine components. High-quality AISIN Vacuum Switching Valves are technologically designed using magnetic field analysis simulation and tested using bench evaluation technology to ensure accurate, reliable performance. Resin material allows for light-weight and compact product while fluorine rubber makes the valve heat and chemical-resistant. AISIN vacuum switches are application specific, please make sure the color and physical appearance, i.e. the number of ports, connector type, etc. of the part you are replacing matches the part you are ordering. 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.