2 inlet + 2 exhaust valve CRF 450 R 02-20 03 04 CRF450X 05 06 07 08 09 12 13 14 15 16 17 19 20 CRF 450R X 17 18 19 20 -- Buyer 002: For Honda CRF450R 2007 2008 OEM Reference Number: 14711-MEB-67014721-MEN-A00005: For Honda CRF450R 2002-2006 OEM Reference Number: 14711-MEB-67014721-MEB-670009: For Honda CRF 450R 2009-2012 Reference number OEM:14711 -MEN-A3014721-MEN-A30010: For Honda CRF450R 2013-2016 OEM reference number: 14711-MEN-A3014721 - MEN-A70011: For Honda CRF450R 2017-2020 For Honda CRF450RX 2017-2020 For Honda CRF45 0X 2019-2020 OEM reference number: 14711-MKE -A0114721-MEN-A70012: For Honda CRF450X 2005-2009 2012-2017 OEM reference number: 14711-MEY-67014721-MEY-670 Condition: New intake exhaust valve kit, never installed. Material: Intake valve: 4Cr10SI3Mo valve exhaust: 5Cr21Mn9Ni4NAAll products approved in excellent performance Package including: 2 x intake valves 2 x exhaust vavles