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Cylinder Works
Cylinder Works 2017 Yamaha YFZ 450 450cc Standard Bore High Compression Cylinder Kit
SKU: C0BU 20003-K02HC
Moderate — 2–4 hours
Description
Part #: 20003-K02HC
OEM-style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options.
Fitment
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Specifications
| Brand | Cylinder Works |
| Part Number | C0BU 20003-K02HC |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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