Package includes: 3× intake valves & 2× exhaust valves Fit for Yamaha: For WR450F 2003-2015 For YZ450F 2003-3009 For YFZ450 2004-2009 2017 2019 For YFZ450R 2009-2020 For YFZ450X 2010-2011 For YFZ450 SPECIAL EDITION 2005-2008 For YFZ450R SPECIAL EDITION 2010-2020 For YFZ450X BILL BALLANCE EDITION 2010 For YFZ450X SPECIAL EDITION 2011 For YFZ450 LIMITED EDITION 2004 For YFZ450V BILL BALLANCE EDITION 2006 For YFZ450 BILL BALLANCE EDITION 2007 Replace part number: 5TA-12112-00-00, 5TA-12111-00-00, 5TA-12121-00-00.