Fits: ES350 2007-2019 GS350 2007-2018 IS250 2006-2015 IS300 2016-2018 IS350 2006-2018 RC300 2016-2018 RC350 2015-2018 RX350 2007-2017 4RUNNER 2003-2020 AVALON 2005-2019 FJ 2007-2014 SIENNA 2007-2020 TACOMA 2005-2020 TUNDRA 2005-2014 VENZA 2009-2015 Replacement belt tensioner pulley idler for use with specified vehicle models.16604-31030.Designed to maintain proper belt tension in engine accessory drive systems. This component is not from the brand.References to models are used only to indicate fitment.