Toyota 16346-50010, Engine Coolant Thermostat Gasket 1989-2010 4Runner, 1969-2007 Land Cruiser, 2002-2013 Sequoia, 2000-2013 Tundra A high quality OEM replacement toyota part Thermostat Gasket Backed by 1 year or 12k warranty which ever comes first A Genuine Toyota Product