Cylinder Works Big Bore Gasket Kit - Yamaha 21003-G01

• Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders
• Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noise
• Nickel Silicon Carbide plated for long life
• Kits come complete with gaskets, cylinder, piston, rings, pin and clips
• Big bore cylinders do not require machine work
• Made in the U.S.A.

Yamaha -- WR 450 F -- (2007, 2009, 2008, 2013, 2015, 2010, 2014, 2011, 2012); Yamaha -- YZ 450 F -- (2008, 2006, 2009, 2007); Yamaha -- YFZ 450R SE 4x2 -- (2012, 2013, 2021, 2010, 2020, 2011, 2017, 2009, 2022, 2015, 2019, 2014, 2016, 2018, 2023); Yamaha -- YFZ 450R 4x2 -- (2020, 2021, 2018, 2022, 2019, 2017, 2014, 2010, 2023, 2009, 2011, 2013, 2012, 2015, 2016); Yamaha -- YFZ 450 X 4x2 -- (2010, 2011); Yamaha -- YFZ 450 X Bill Balance Edition 4x2 -- (2010); Yamaha -- YFZ 450 4x2 -- (2017)