CYLINDER WORKS Yamaha YZ450F & WR450F Complete Big Bore Cylinder Kit - Part 21003-K01

Upgrade your Yamaha YZ450F or WR450F with the Cylinder Works Part 21003-K01 complete big bore cylinder kit, designed to enhance performance and durability. This kit includes a high-quality cylinder, piston kit, and gaskets, providing a comprehensive solution for engine refurbishment and power boosting. The cylinder features a nickel silicon carbide plating that significantly extends its lifespan and resists wear, ensuring reliable performance over time. With a stock-looking appearance, it maintains the original aesthetic while delivering increased displacement and power. The kit is engineered for easy installation, requiring no machine work when replacing the standard bore, making it a convenient upgrade for experienced enthusiasts and professional mechanics alike. Matched with Vertex pistons, this kit ensures optimal longevity and reduces engine noise, contributing to smoother operation and improved engine efficiency. The included gasket set is a top-end gasket kit, excluding valve stem seals, designed to provide a tight seal and prevent leaks, which is critical for maintaining engine integrity under demanding conditions. This versatile kit is compatible with various Yamaha models from 2006 to 2013, including the YZ450F and WR450F, making it a reliable choice for restoring or upgrading your dirt bike's engine. Whether you're looking for a replacement cylinder or aiming to increase your bike’s power output, the Cylinder Works Yamaha YZ450F & WR450F complete big bore cylinder kit offers a proven solution that combines high performance with durability and ease of installation.

Features:

• Complete standard bore kits for easy replacement

• High compression kits designed for increased power

• Big bore kits for enhanced displacement and performance

• Includes cylinder, piston kit, and gaskets for a full upgrade

• Top end gasket kit excludes valve stem seals

• Matched with Vertex pistons for longevity and reduced noise

• Availability of replacement pistons, gaskets, and ring sets

• Cylinder maintains stock appearance for seamless integration

• Nickel silicon carbide plating for longer service life

• No machine work needed for installation when replacing standard bore

Fits,
Yamaha WR450F 2007
Yamaha WR450F 2008
Yamaha WR450F 2009
Yamaha WR450F 2010
Yamaha WR450F 2011
Yamaha WR450F 2012
Yamaha WR450F 2013
Yamaha WR450F 2014
Yamaha WR450F 2015
Yamaha YZ450F 2006
Yamaha YZ450F 2007
Yamaha YZ450F 2008
Yamaha YZ450F 2009