Cylinder Works Big Bore Cylinder Kit Compatible with/Replacement for For Yamaha YZ 450 F 03 04 05, WR 450 F 03 04 05 06 23001-K02

**Verify the part fits before purchasing**Spec:Description: Big Bore Cylinder KitCompression Ratio: 12.5:1Cylinder Diameter: 98mmCylinder Kit Type: Big BoreDisplacement: 478ccEngine Type: 4-CycleKit Includes: Cylinder, Piston Kit, & Top-End Gasket KitNotes: Uses Vertex #23404.Fits:Yamaha WR 450 F 2003-2006, YZ 450 F 2003-2005

• Specs: Big Bore Cylinder Kit, Compression Ratio: 12.5:1, Cylinder Diameter: 98mm, Cylinder Kit Type: Big Bore, Displacement: 478cc, Engine Type: 4-Cycle, Kit Includes: Cylinder, Piston Kit, & Top-End Gasket Kit, Notes: Uses Vertex #23404.
• Meets or Exceeds OEM Specs for Fit and Performance
• Compatible With/Replacement For: Yamaha WR 450 F 2003-2006, YZ 450 F 2003-2005
• 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. But in a rare case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you, contact us for a replacement.
• 100% New aftermarket Big Bore Cylinder Kit built to meet OEM specifications