The product is a genuine OEM thermostat and gasket specifically designed for Toyota Lexus IS300 models from 2001-2005. Manufactured in Japan, this thermostat has the OE/OEM Part Number 90916-03093 and is a perfect fit for the vehicle. Made by the trusted brand Toyota, this high-quality component ensures optimal engine cooling performance and durability for the specified car model. Ideal for those looking to replace a faulty thermostat or want a reliable one for their maintenance needs.