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Cylinder Works Big Bore Cylinder Kits for 2001-2013 WR250F, YZ250F - 422-21002K
Part Number: CLW-21002-K01
Cylinder Works Big Bore Cylinder Kits
Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Yamaha, Motorcycle, Kit
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Estimated Ship Date: Oct 19, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
422-21002K
Part Type:
Product Line:
Summit Racing Part Number:
CLW-21002-K01
Cylinder Included:
Yes
Pistons Included:
Yes
Piston Material:
Forged aluminum
Piston Rings Included:
Yes
Piston and Ring Oversize (mm):
3.000mm
Wrist Pin Included:
Yes
Wrist Pin Bearing Included:
No
Head Gaskets Included:
Yes
Base Gaskets Included:
Yes
Cam Chain Tensioner Gaskets Included:
Yes
Exhaust Gaskets Included:
Yes
Valve Cover Gaskets Included:
No
Quantity:
Sold as a kit.
Cylinder Works Big Bore Cylinder Kits
Eliminate the wait with Cylinder Works big bore cylinder kits. They arrive ready to install, eliminating the hassle of sending out your cylinder for re-plating or boring, and they're competitively priced compared to typical re-plating costs. These Cylinder Works cylinders look virtually identical to your OEM parts and are conveniently available in "stealthy" big bore sizes. Cylinder Works big bore cylinder kits come in a variety of sizes, so choose the one that best fits your application.
Features include:
* Super-convenient--just purchase and install
* Nickel silicon carbide plated for long life
* Honed to exact size for easy piston installation
* Complete with gaskets, cylinder, and piston kit
* No machine work required
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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