Order Includes: 2 x Exhaust Valve, 2 x Outer Valve Spring, 2 x Valve Stem Seal, 4 x Valve Cotter. Compatible with Yamaha models: YZ250F 2002-2013. Part Number: Exhaust Valve: 5NL-12121-10-00, 5NL-12121-00-00, Outer Valve Spring: 5NL-12114-00-00, 5NL-12114-10-00, Valve Stem Seal: 4SV-12119-00-00, Valve Cotter: 1WG-12118-00-00. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
