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CYLINDER WORKS

Big Bore Cylinder Kit

MPN: 21009-K01 SKU: 422-21009K
$1,255.75
In Stock
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Product Description

Big Bore Cylinder Kit

  • SKU: 422-21009K
  • Manufacturer part number: 21009-K01
  • UPC:

Vehicle compatibility is shown in the fitment information below.

Features:

  • Complete standard bore kits
  • Complete standard bore high compression kits
  • Complete Big Bore Kits
  • Includes cylinder, piston kit and gaskets
  • Top end gasket kit does not include valve stem seals
  • Matched with vertex pistons to ensure longevity, performance and reduce engine noise
  • Replacement piston, gaskets, and ring sets available
  • Cylinder looks just like stock
  • Nickel silicon carbide plated for longer life
  • No machine work needed *
  • Replacement cylinder for standard bore only

Product Specifications

BrandCYLINDER WORKS
Manufacturer Part Number21009-K01
ATD SKU422-21009K
Class Cylinder Kits & Components
Division Engine
Product Type Engine
Segment Offroad
Sub Class Cylinder & Cylinder Kits

Vehicle Fitment

Confirmed catalog applications for this product.

27 applications
Yamaha
YZ250
1999–2025
✓ Confirmed

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