Order Includes: 1 x Intake Valve, 1 x Inner Valve Spring, 1 x Valve Stem Seal, 2 x Valve Cotter. Compatible with Yamaha models: YZ450F 2014-2017. Part Number: Intake Valve: 1SL-12111-00-00, Inner Valve Spring: 33D-12113-00-00, Valve Stem Seal: 51Y-12119-00-00, Valve Cotter: 3LD-12118-00-00. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
