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CYLINDER KIT YFZ450R 09-18, WORKS CYLINDER 21003-K02 BIG BORE, 2009 - 2017 Yamaha YFZ 450R ATV,2010 - 2011 Yamaha YFZ 450X ATV

CYLINDER KIT YFZ450R 09-18, WORKS CYLINDER 21003-K02 BIG BORE, 2009 - 2017 Yamaha YFZ 450R ATV,2010 - 2011 Yamaha YFZ 450X ATV

£578.66 GBP
Taxes included.

Cylinder Works +3mm Big Bore Complete Cylinder Kit for the 2009-2018 Yamaha YFZ450R and 2010-2011 Yamaha YFZ450X increases displacement to 478cc. This direct bolt-on upgrade requires no re-plating and includes all necessary components for installation, featuring a matched Vertex piston for durability and performance.

Features

  • Direct bolt-on installation with no additional machining required
  • Nickel Silicon Carbide plated for extended lifespan
  • Honed to exact size for easy piston installation
  • Big bore cylinders do not require additional machine work (unless specified)
  • Includes all necessary components for installation

Included Items

  • Cylinder
  • Piston assembly
  • Top-end gasket set

Specifications

  • Bore: +3mm
  • Displacement: 478cc
  • Uses Vertex Piston #23403

Cross-Reference OEM Part Numbers

  • YAMAHA: 2S2-11311-10-00

Vehicle Fitments

  • 2009 Yamaha YFZ450R
  • 2010 Yamaha YFZ450R
  • 2011 Yamaha YFZ450R
  • 2012 Yamaha YFZ450R
  • 2013 Yamaha YFZ450R
  • 2014 Yamaha YFZ450R
  • 2015 Yamaha YFZ450R
  • 2016 Yamaha YFZ450R
  • 2017 Yamaha YFZ450R
  • 2018 Yamaha YFZ450R
  • 2009 Yamaha YFZ450RSE Special Edition
  • 2010 Yamaha YFZ450RSE Special Edition
  • 2011 Yamaha YFZ450RSE Special Edition
  • 2012 Yamaha YFZ450RSE Special Edition
  • 2013 Yamaha YFZ450RSE Special Edition
  • 2014 Yamaha YFZ450RSE Special Edition
  • 2015 Yamaha YFZ450RSE Special Edition
  • 2016 Yamaha YFZ450RSE Special Edition
  • 2017 Yamaha YFZ450RSE Special Edition
  • 2018 Yamaha YFZ450RSE Special Edition
  • 2010 Yamaha YFZ450X
  • 2011 Yamaha YFZ450X
  • 2010 Yamaha YFZ450XBB Bill Balance Edition
  • 2011 Yamaha YFZ450X SE