Radiator Cap 16401-31520 Compatible for Toyota - Avalon Camry Echo Highlander Prius C Sequoia Sienna Solara Tundra Venza Yaris ES300h ES350 GS300 GS430 IS300 LS430 RX300 SC430

The radiator cap holds the coolant inside the radiator, but it also works as a two-way valve that keeps the right pressure inside so the radiator does it work correctly. It is extremely important to always make sure to allow the engine to cool down before removing the radiator cap, as removing the cap from a hot system can cause sudden coolant spray and severe burns. A faulty radiator cap can have a huge impact on the cooling performance of your vehicle, once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it on. Fits the Following Vehicles: 2005-2008 Toyota Avalon 2013-2016 Toyota Avalon 1992-1993 Toyota Camry 2002-2009 Toyota Camry 2013-2016 Toyota Camry 2000-2005 Toyota Echo 2001-2007 Toyota Highlander 2011-2016 Toyota Highlander 2012-2016 Toyota Prius C 2008-2009 Toyota Sequoia 2007-2008 Toyota Sienna 2004-2008 Toyota Solara 1993-1998 Toyota Supra 2007-2011 Toyota Tundra 2013-2015 Toyota Venza 2007-2009 Toyota Yaris To 02/2009 Location: Upper Radiator Hose 2012-2016 Toyota Yaris From 02/2012 Location: Upper Radiator Hose 1992-1993 Lexus ES300 2013-2016 Lexus ES300h 2007-2016 Lexus ES350 1998-2005 Lexus GS300 1998-2000 Lexus GS400 2001-2003 Lexus GS430 2001-2005 Lexus IS300 1998-2000 Lexus LS400 2001-2006 Lexus LS430 2001-2003 Lexus RX300 2007-2008 Lexus RX350 2016 Lexus RX450h 1998-2000 Lexus SC300 1998-2000 Lexus SC400 2002-2005 Lexus SC430 Replaces Part #: 16401-31520, 1640131520. NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.