Cylinder Works 21003-K02 Big Bore Cylinder Kit

Name: Cylinder Works 21003-K02 Big Bore Cylinder Kit
Brand: Cylinder Works
SKU: awhd-us-b007rzvhdu
Price: 597.73 USD
Availability: InStock

Brand: Cylinder Works

Condition: Used

$597⁷³

$634²³

-6% Save $36⁵⁰

Updated: 2 days ago

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Description

Fits: Yamaha YFZ 450R 2009-2013, YFZ 450X 2010-2011

For those looking to create the ultimate high-performance machine, this 3mm over Big Bore Kit making 478cc with standard compression will give you the increase in horsepower and torque you are looking for

The cast aluminum cylinder is Nickel Silicon Carbide (NSC) electroplated, providing a durable, low friction, wear resistant surface with oil retention capabilities, and allows for greater heat dissipation to the water jacket

Cylinder Works kits come with a Vertex piston that is forged for superior strength and durability, and is molybdenum disulphide coating for reduced wear and faster break in

Kit includes cylinder, piston, rings, wristpin, circlips, and special gasket kit with full instructions; plus, no machine work to your engine or cases is required

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Product Details

SKU:: awhd-us-b007rzvhdu
Model:: 21003-K02
Country:: US
ASIN:: B007RZVHDU
GTIN:: 00182682921894
UPC:: 182682921894

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $37 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Cylinder Works products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.