2Bros Parts

CYLINDER KIT 03-05 YZF450 98, WORKS CYLINDER 23001-K02, WRF450 03-06

£768.23Only 1 left

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The +3mm Big Bore Complete Cylinder Works Kit increases engine displacement to 478cc. This direct bolt-on kit requires no replating or additional machining, offering a ready-to-install solution with OEM-like performance and quality. Features include a +3mm big bore cylinder, direct bolt-on replacement with no additional machining required, Nickel Silicon Carbide plating for durability and long life, and precisely honed cylinders for straightforward piston installation. The complete kit includes cylinder, piston, gasket set, piston pin, circlips (2), and ring set. Specifications include 478cc displacement, standard compression, and a Vertex #23404 piston type.

Specifications
SKU
56-K114.98.CKW
Brand
Cylinder Works
Availability
In Stock (1)

Fitments (53)

MakeModelYear
YAMAHAWR 450F2003
YAMAHAWR 450F2004
YAMAHAWR 450F2005
YAMAHAWR 450F2006
YAMAHAWR 450F2007
YAMAHAWR 450F2008
YAMAHAWR 450F2009
YAMAHAWR 450F2010
YAMAHAWR 450F2011
YAMAHAWR 450F2012
YAMAHAWR 450F2013
YAMAHAWR 450F2014
YAMAHAWR 450F2015
YAMAHAWRF 4502003
YAMAHAWRF 4502004
YAMAHAWRF 4502005
YAMAHAWRF 4502006
YAMAHAYFZ 4502004
YAMAHAYFZ 4502005
YAMAHAYFZ 4502006
YAMAHAYFZ 4502007
YAMAHAYFZ 4502008
YAMAHAYFZ 4502009
YAMAHAYFZ 4502010
YAMAHAYFZ 4502011
YAMAHAYFZ 4502012
YAMAHAYFZ 4502013
YAMAHAYFZ 450S2004
YAMAHAYFZ 450S2005
YAMAHAYFZ 450S2006
YAMAHAYFZ 450S2007
YAMAHAYFZ 450S2008
YAMAHAYFZ 450S2009
YAMAHAYFZ 450S2010
YAMAHAYFZ 450S2011
YAMAHAYFZ S 4502004
YAMAHAYFZ S 4502005
YAMAHAYFZ S 4502006
YAMAHAYFZ S 4502007
YAMAHAYFZ S 4502008
YAMAHAYFZ S 4502009
YAMAHAYFZ S 4502010
YAMAHAYFZ S 4502011
YAMAHAYZ 450F2003
YAMAHAYZ 450F2004
YAMAHAYZ 450F2005
YAMAHAYZ 450F2006
YAMAHAYZ 450F2007
YAMAHAYZ 450F2008
YAMAHAYZ 450F2009
YAMAHAYZF 4502003
YAMAHAYZF 4502004
YAMAHAYZF 4502005
General Product Group
Engine
General Product Type
Cylinder Kits
General Size
98mm
Variant Id
283285
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Cylinder Works 478cc Big Bore Complete Cylinder Kit

Enhance the power and performance of your Yamaha WR450F or YZ450F with this +3mm Big Bore Complete Cylinder Kit from Cylinder Works. This kit is engineered to directly replace your stock cylinder, increasing engine displacement to a potent 478cc. Designed for a seamless installation, it requires no replating or additional machining, providing a convenient and high-quality upgrade.

The cylinder features a durable Nickel Silicon Carbide plating, ensuring longevity and resistance to wear. It is precisely honed to facilitate easy piston installation. This comprehensive kit includes all the essential components needed for a complete engine rebuild, offering OEM-like performance and reliability.

Key Features:

  • Increases engine displacement to 478cc via a +3mm big bore cylinder.
  • Direct bolt-on design; no additional machining required.
  • Nickel Silicon Carbide plated cylinder for exceptional durability.
  • Precisely honed for easy piston fitting.
  • Complete kit for a straightforward installation.

Included Components:

  • Cylinder
  • Piston
  • Gasket set
  • Piston pin
  • Circlips (2)
  • Ring set

Specifications:

  • Displacement: 478cc
  • Compression: Standard
  • Piston Type: Vertex #23404
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call us0330 133 3748
Email us[email protected]

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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

More answers in our FAQ.

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