2Bros Parts

CYLINDER KIT BIG BORE 2004-2013 YAMAHA YFZ450 WORKS CYLINDER 23001-K01

$852.66

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Delivery to United States 5–8 business days

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The +3mm Big Bore Complete Cylinder Kit offers increased displacement without additional machining. It is designed to look similar to OEM components and features Nickel Silicon Carbide plating with exact honing for easy piston installation. This kit includes a +3mm big bore cylinder, piston, ring set, two circlips, gasket set, and piston pin. Displacement is 468cc for 2004-2005 models and 478cc for 2006-2012 models. Compression is standard. Compatible piston is Vertex #23403.

Specifications
SKU
56-K133.98.CKW1
Brand
Cylinder Works
Availability
In Stock (2)

Fitments (26)

MakeModelYear
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
General Product Group
Engine
General Product Type
Cylinder Kits
Variant Id
283294
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Cylinder Works Big Bore Cylinder Kit - Enhanced Yamaha YFZ450 Performance

Upgrade your Yamaha YFZ 450's performance with this Big Bore Complete Cylinder Kit. Engineered by Cylinder Works for the 2004-2013 models, this kit offers a significant displacement increase as a direct bolt-on solution, eliminating the need for additional machining or replating. The kit is designed to maintain a factory appearance while providing superior durability and performance.

Key features include advanced Nickel Silicon Carbide plating for exceptional cylinder longevity and precise honing for effortless piston installation. This kit provides a substantial performance boost without compromising the original look of your ATV.

Key Features:
  • Direct bolt-on design for straightforward installation.
  • No replating is required, simplifying the upgrade process.
  • Durable Nickel Silicon Carbide plating ensures extended cylinder life.
  • Precision honed to exact dimensions for smooth piston movement.
  • Offers a big bore upgrade with no machining needed for most applications.
  • Complete kit includes all essential components for a full installation.
Included Components:
  • Big bore cylinder (+3mm)
  • Piston
  • Ring set
  • Two circlips
  • Complete gasket set
  • Piston pin
Specifications:
  • Displacement: 468cc (for 2004-2005 models) or 478cc (for 2006-2012 models)
  • Compression: Standard
  • Compatible Piston: Vertex #23403
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

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.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. 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.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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