CYLINDER KIT YAMAHA 2006-2009 YZF450 2007-2015 WR450F 480CC WORKS CYLINDER 21003-K01
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The Cylinder Works +3 mm big bore complete cylinder kit (21003-K01) increases engine displacement to 478 cc during a full top-end rebuild. This direct bolt-on cylinder and piston package requires no replating or additional machining. The plated cylinder is designed for durability and wear resistance, and is supplied honed to specification for straightforward piston installation. The kit includes the cylinder, piston, wrist pin, two cir-clips, top ring, two oil rings, a spacer ring, cylinder head gasket, cylinder gasket, exhaust gasket, and case gasket. Bore increase is +3 mm. Engine displacement is 478 cc. Cylinder plating is Nickel Silicon Carbide. Manufacturer: The Cylinder Works. Part number: 21003-K01.
- SKU
- 56-K108.98.CKW
- Brand
- Cylinder Works
- Availability
- In Stock (2)
Fitments (107)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 450F | 2003 |
| YAMAHA | WR 450F | 2004 |
| YAMAHA | WR 450F | 2005 |
| YAMAHA | WR 450F | 2006 |
| YAMAHA | WR 450F | 2007 |
| YAMAHA | WR 450F | 2008 |
| YAMAHA | WR 450F | 2009 |
| YAMAHA | WR 450F | 2010 |
| YAMAHA | WR 450F | 2011 |
| YAMAHA | WR 450F | 2012 |
| YAMAHA | WR 450F | 2013 |
| YAMAHA | WR 450F | 2014 |
| YAMAHA | WR 450F | 2015 |
| YAMAHA | WRF 450 | 2007 |
| YAMAHA | WRF 450 | 2008 |
| YAMAHA | WRF 450 | 2009 |
| YAMAHA | WRF 450 | 2010 |
| YAMAHA | WRF 450 | 2011 |
| YAMAHA | WRF 450 | 2012 |
| YAMAHA | WRF 450 | 2013 |
| YAMAHA | WRF 450 | 2014 |
| YAMAHA | WRF 450 | 2015 |
| YAMAHA | YFZ 450 Bill Balance Edition | 2010 |
| YAMAHA | YFZ 450R | 2009 |
| YAMAHA | YFZ 450R | 2010 |
| YAMAHA | YFZ 450R | 2011 |
| YAMAHA | YFZ 450R | 2012 |
| YAMAHA | YFZ 450R | 2013 |
| YAMAHA | YFZ 450R | 2014 |
| YAMAHA | YFZ 450R | 2015 |
| YAMAHA | YFZ 450R | 2016 |
| YAMAHA | YFZ 450R | 2017 |
| YAMAHA | YFZ 450R Special Edition | 2010 |
| YAMAHA | YFZ 450R Special Edition | 2011 |
| YAMAHA | YFZ 450R Special Edition | 2012 |
| YAMAHA | YFZ 450R Special Edition | 2013 |
| YAMAHA | YFZ 450X | 2009 |
| YAMAHA | YFZ 450X | 2010 |
| YAMAHA | YFZ 450X | 2011 |
| YAMAHA | YFZ 450X | 2012 |
| YAMAHA | YFZ 450X | 2013 |
| YAMAHA | YFZ 450X | 2014 |
| YAMAHA | YFZ 450X | 2015 |
| YAMAHA | YFZ 450X Special Edition | 2011 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2010 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2011 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2012 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2013 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2014 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2015 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2016 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2017 |
| YAMAHA | YFZ BILL BALANCE EDITION 450 | 2018 |
| YAMAHA | YFZ R 450 | 2009 |
| YAMAHA | YFZ R 450 | 2010 |
| YAMAHA | YFZ R 450 | 2011 |
| YAMAHA | YFZ R 450 | 2012 |
| YAMAHA | YFZ R 450 | 2013 |
| YAMAHA | YFZ R 450 | 2014 |
| YAMAHA | YFZ R 450 | 2015 |
| YAMAHA | YFZ R 450 | 2016 |
| YAMAHA | YFZ R 450 | 2017 |
| YAMAHA | YFZ R 450 | 2018 |
| YAMAHA | YFZ R SPECIAL EDITION 450 | 2010 |
| YAMAHA | YFZ R SPECIAL EDITION 450 | 2011 |
| YAMAHA | YFZ R SPECIAL EDITION 450 | 2012 |
| YAMAHA | YFZ R SPECIAL EDITION 450 | 2013 |
| YAMAHA | YFZ S 450 | 2004 |
| YAMAHA | YFZ S 450 | 2005 |
| YAMAHA | YFZ S 450 | 2006 |
| YAMAHA | YFZ S 450 | 2007 |
| YAMAHA | YFZ S 450 | 2008 |
| YAMAHA | YFZ S 450 | 2009 |
| YAMAHA | YFZ S 450 | 2010 |
| YAMAHA | YFZ S 450 | 2011 |
| YAMAHA | YFZ X 450 | 2009 |
| YAMAHA | YFZ X 450 | 2010 |
| YAMAHA | YFZ X 450 | 2011 |
| YAMAHA | YFZ X 450 | 2012 |
| YAMAHA | YFZ X 450 | 2013 |
| YAMAHA | YFZ X 450 | 2014 |
| YAMAHA | YFZ X 450 | 2015 |
| YAMAHA | YFZ X 450 | 2016 |
| YAMAHA | YFZ X 450 | 2017 |
| YAMAHA | YFZ X 450 | 2018 |
| YAMAHA | YFZ X 450 | 2019 |
| YAMAHA | YFZ X 450 | 2020 |
| YAMAHA | YFZ X 450 | 2021 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2011 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2012 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2013 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2014 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2015 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2016 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2017 |
| YAMAHA | YFZ X SPECIAL EDITION 450 | 2018 |
| YAMAHA | YZ 450F | 2003 |
| YAMAHA | YZ 450F | 2004 |
| YAMAHA | YZ 450F | 2005 |
| YAMAHA | YZ 450F | 2006 |
| YAMAHA | YZ 450F | 2007 |
| YAMAHA | YZ 450F | 2008 |
| YAMAHA | YZ 450F | 2009 |
| YAMAHA | YZF 450 | 2006 |
| YAMAHA | YZF 450 | 2007 |
| YAMAHA | YZF 450 | 2008 |
| YAMAHA | YZF 450 | 2009 |
- General Product Group
- Engine
- General Product Type
- Cylinder Kits
- Variant Id
- 252630
FULL DESCRIPTION
Cylinder Works 478cc Big Bore Complete Cylinder Kit
This Cylinder Works +3 mm big bore complete cylinder kit is engineered to enhance your motorcycle's performance. It serves as a direct bolt-on replacement for your existing cylinder and piston assembly, increasing engine displacement to 478 cc. This kit is designed for a full top-end rebuild and includes all necessary gaskets and internal components for a straightforward installation, eliminating the need for replating or additional machining.
Key Features:
- Increases engine displacement to 478 cc.
- Direct bolt-on design for easy installation.
- Requires no replating or additional machining.
- Features a durable Nickel Silicon Carbide plated cylinder for enhanced wear resistance.
- Cylinder is honed to specification for simple piston installation.
- Complete kit ensures a full top-end rebuild.
Specifications:
- Manufacturer: The Cylinder Works
- Part Number: 21003-K01
- Bore Increase: +3 mm
- Engine Displacement: 478 cc
- Cylinder Plating: Nickel Silicon Carbide
Included Components:
- Cylinder
- Piston
- Wrist pin
- Cir-clips (2)
- Top ring
- Oil rings (2)
- Spacer ring
- Cylinder head gasket
- Cylinder gasket
- Exhaust gasket
- Case gasket
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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