Compatibility - Fits for Toyota Vehicles: 2010 - 2012 Camry 2.5L, 2012 Camry Hybrid 2.5L, 2009 - 2012 Highlander 2.7L, 2009 - 2012 Rav4 2.5L, 2011 - 2012 Sienna 2.7L, 2009 - 2012 Venza 2.7L. 2011 - 2012 Scion Tc 2.5L. Engine code: 1AR-FE, 2AR-FE. Replace Part Number - Intake variable valve timing (vvt) sprocket: 917-258, 130500V010, 130500V011, 1305036010, 1305036011, 917258. Exhaust variable valve timing (vvt) sprocket: 917-259, 13070-0V030, 130700V010, 130700V011, 130700V012, 130700V013, 1307036010, 917259. Package Include - Engine VVT Timing Camshaft Gear Sprocket Set: includes one each of the intake and exhaust variable valve timing sprockets for a complete and convenient installation. Function - The timing gear ensures the valve timing when the engine is running, so that the opening and closing of the intake and exhaust valves are consistent with the piston movement. Compatible Replacement for Toyota & Scion Vehicles FITMENTS: 2010 - 2012 Toyota Camry 2.5L 2012 Toyota Camry Hybrid 2.5L 2009 - 2012 Toyota Highlander 2.7L 2009 - 2012 Toyota Rav4 2.5L 2011 - 2012 Toyota Sienna 2.7L 2009 - 2012 Toyota Venza 2.7L 2011 - 2012 Scion Tc 2.5L