CYLINDER WORKS Yamaha YFZ450R Big Bore Cylinder Kit with Piston and Gaskets

Upgrade your Yamaha YFZ450R ATV with the CYLINDER WORKS Part Number 21003-K02 Big Bore Cylinder Kit designed for enhanced performance and durability. This comprehensive kit includes a precisely engineered cylinder, high-performance piston, and gasket set, providing an excellent solution for restoring or boosting your engine's power. The cylinder features a nickel silicon carbide plating, which significantly extends its lifespan and maintains optimal performance under demanding conditions. Built to resemble stock dimensions, this cylinder ensures a perfect fit without the need for machining, simplifying installation and reducing downtime. The kit's matched components, including Vertex pistons, are selected to reduce engine noise, improve longevity, and maximize power output, making it ideal for serious ATV enthusiasts seeking reliable upgrades. It is compatible with several Yamaha YFZ450R models from 2009 through 2017, as well as the YFZ450X from 2010, ensuring a broad fitment range. Whether you're rebuilding your ATV or looking for a performance boost, this kit offers a straightforward, high-quality solution to enhance your vehicle's engine efficiency and lifespan.

Features:

• Complete standard bore kits for Yamaha YFZ450R and YFZ450X

• High compression kits for increased power output

• Big Bore Kits for significant performance upgrades

• Includes cylinder, piston kit, and gaskets for comprehensive rebuilds

• Top end gasket kit excludes valve stem seals for targeted repairs

• Matched with Vertex pistons to ensure longevity, performance, and reduced engine noise

• Replacement piston, gasket, and ring sets available for maintenance

• Cylinder designed to look just like stock for seamless fitment

• Nickel silicon carbide plating for longer service life

• No machine work needed for installation

• Replacement cylinder compatible with standard bore only

Product Type: Engine
Segment: ATV/UTV
Division: Engine
Class: Cylinder Kits & Components
Sub Class: Cylinder & Cylinder Kits

FITMENT:
2009 Yamaha YFZ450R
2010 Yamaha YFZ450R
2010 Yamaha YFZ450X
2011 Yamaha YFZ450R
2011 Yamaha YFZ450X
2012 Yamaha YFZ450R
2013 Yamaha YFZ450R
2014 Yamaha YFZ450R
2015 Yamaha YFZ450R
2016 Yamaha YFZ450R
2017 Yamaha YFZ450R