Order Includes: 2 x Exhaust Valve, 2 x Outer Valve Spring, 2 x Valve Stem Seal, 4 x Valve Cotter. Compatible with Yamaha models: Rhino 660 4x4 2004-2007. Part Number: Exhaust Valve: 3YF-12121-00-00, Outer Valve Spring: 3YF-12114-00-00, Valve Stem Seal: 5H0-12119-00-00, Valve Cotter: 4G0-12118-00-00. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
