The fuel tank gas cap prevents gas or diesel vapors from escaping while the vehicle is in operation. By doing so, it reduces vapor emissions and aid to fuel economy. The gas cap on your Camry, Tacoma, Tundra, Solara or Prius does more than just closing the tank. It provides a tight seal ensured by a clicking sound once it is closed. If your vehicle is experiencing a Check Engine Light (CEL) and a code about EVAP leaks, gas cap wont click when closed or it is simply worn then you have to replace your gas tank cap. Compatible with the following vehicles: 2002-2003 ES300 ( From 11/2001 ) 2004-2006 ES330 2006 GS300 2013-2014 GS350 2006-2007 GS430 2003-2009 GX470 2004-2006 RX330 2005 Vibe 2010 tC 2003-2009 4Runner 2005-2006 Avalon 2002-2006 Camry 2004-2006 Corolla Built 05/04-08/05 2004-2007 Highlander Built up to 06/06 2004-2006 Matrix Built 05/04-08/05 2004-2009 Prius 1.5L 2004-2007 Sequoia Built from 08/04 2004-2006 Sienna Built from 06/03 2004-2006 Solara Built from 08/03 2005-2008 Tacoma 2003-2006 Tundra Replaces part numbers: 77300-33070, 7730033070, 31839 This is a compatible replacement part manufactured by AA Ignition. This Fuel gas tank cap is NOT a genuine OEM part. Vehicle makes and their associated vehicle models and part numbers are used in this listing only to identify the vehicles this fuel gas tank cap fits.