The variable valve timing sprocket is key to ensuring an engine's performance and clean running. Replace a worn factory VVT sprocket with this quality engineered sprocket to restore lost performance. Designed to install and perform like the original. Vehicle model years this part fits: Pontiac Vibe: 2009, 2010 Scion xD: 2008, 2009, 2010, 2011, 2012, 2013, 2014 Toyota Corolla: 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Toyota Matrix: 2009, 2010, 2011, 2012, 2013, 2014 Toyota Yaris: 2017