CYLINDER WORKS offers you a 480cc BIG BORE cylinder for your motocross YAMAHA YZ450F, YZF 450cc 4-stroke from 2006 to 2009 and YAMAHA WR450F, WRF 450cc 4-stroke from 2007 to 2014. This aluminum kit has the same characteristics as your original cylinder, except that you go from Ø95mm 450cc to Ø98mm 478cc without any adaptation or modification to your engine. You'll be able to fit it with your original cylinder head and camshaft. This complete top motor is of the highest quality and finish. The coating is made of silicon carbide nickel to guarantee a minimum friction surface and increase the reliability and life of your cylinder. But it also delivers more torque and performance than the original engine. Let's talk about the piston: it's made by VERTEX, one of the world's leading manufacturers of top-of-the-range pistons. The piston head is machined for excellent engine compression. It's also graphitized for better lubrication as it passes through. We recommend this top-of-the-range engine for those who want to give their machine more performance without having to make any modifications. This cylinder is of course sold complete. It includes cylinder, piston, ring, pin, clips and complete gasket pack. You won't need anything else to reassemble this product. A list of vehicles suitable for this kit can be found below. Contractual photo to come.

Fits on:

YAMAHA WR 450 F (CJ12) 2007

YAMAHA WR 450 F (CJ13) 2011

YAMAHA WR 450 F (CJ13) 2010

YAMAHA WR 450 F (CJ13) 2009

YAMAHA WR 450 F (CJ13) 2008

YAMAHA WR 450 F (DJ03) 2015

YAMAHA WR 450 F (DJ03) 2014

YAMAHA WR 450 F (DJ03) 2013

YAMAHA WR 450 F (DJ03) 2012

YAMAHA YZ 450 F (CJ10) 2009

YAMAHA YZ 450 F (CJ10) 2008

YAMAHA YZ 450 F (CJ10) 2007

YAMAHA YZ 450 F (CJ10) 2006