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Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02

  • Part #:
    145308
  • Manufacturer Part #:
    21003-K02

MSRP Price: $649.95

Our Price: $584.96

You Save:
$64.99 (10%)
Ships In 4-5 Business Days

Overview of Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02

  • Direct bolt-on, ready-to-install cylinders; require no replating and look virtually identical to the OEM
  • Nickel Silicon Carbide plated for long life
  • Honed to exact size for easy piston installation
  • Big bore cylinders do not require machine work (unless noted)
  • Big bore cylinder kits come complete with gaskets, cylinder, piston, rings, pin and clips

    Included Items:
    1. (1) Cylinder
    2. (1) Piston assembly
    3. (1) Top end gasket set

Specs for Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02

Type Big Bore Kit
Units Each
Weight 4.15 lbs

Cross reference number(s):

09310378

Specs for Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02

Type Big Bore Kit
Units Each
Weight 4.15 lbs

Fitment for Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02

See if this part fits your ride

Part 145308 fits the following machines

Yamaha
  • 2018 Yamaha YFZ450R
  • 2017 Yamaha YFZ450R
  • 2016 Yamaha YFZ450R
  • 2015 Yamaha YFZ450R
  • 2014 Yamaha YFZ450R
  • 2013 Yamaha YFZ450R
  • 2012 Yamaha YFZ450R
  • 2011 Yamaha YFZ450R
  • 2010 Yamaha YFZ450R
  • 2009 Yamaha YFZ450R
  • 2018 Yamaha YFZ450RSE Special Edition
  • 2017 Yamaha YFZ450RSE Special Edition
  • 2016 Yamaha YFZ450RSE Special Edition
  • 2015 Yamaha YFZ450RSE Special Edition
  • 2014 Yamaha YFZ450RSE Special Edition
  • 2013 Yamaha YFZ450RSE Special Edition
  • 2012 Yamaha YFZ450RSE Special Edition
  • 2011 Yamaha YFZ450RSE Special Edition
  • 2010 Yamaha YFZ450RSE Special Edition
  • 2009 Yamaha YFZ450RSE Special Edition
  • 2011 Yamaha YFZ450X
  • 2010 Yamaha YFZ450X
  • 2011 Yamaha YFZ450X SE
  • 2010 Yamaha YFZ450XBB Bill Balance Edition
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Instructions and Manuals for Cometic +3mm Big Bore Complete Cylinder Kit - 478cc - 21003-K02