CYLINDER WORKS KIT CYLINDER YAMAHA YZ450F 03-05, WR450F 03-06,YFZ450 04-11

The +3mm Big Bore Complete Cylinder Works Kit increases engine displacement to 478cc for Yamaha WR450F and YZ450F models. This direct bolt-on kit requires no replating or additional machining, offering a ready-to-install solution with OEM-like performance and quality.

Features:

• Increases displacement to 478cc with a +3mm big bore cylinder.
• Direct bolt-on replacement with no additional machining required.
• Nickel Silicon Carbide plated for durability and long life.
• Precisely honed for straightforward piston installation.
• Complete kit includes all necessary components for installation.

Included Components:

• Cylinder
• Piston
• Gasket set
• Piston pin
• Circlips (2)
• Ring set

Specifications:

• Displacement: 478cc
• Compression: Standard
• Piston type: Vertex #23404

Vehicle Fitments:

• Yamaha WR450F: 2003–2006
• Yamaha YZ450F: 2003–2005

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.