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Cylinder Works 05-21 Yamaha YZ 125 125cc Standard Bore Cylinder Head

Cylinder Works Part number: CH2005-K01 Out of Stock - on backorder and will be dispatched once in stock.
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$138.65
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Availability: Out of Stock - on backorder and will be dispatched once in stock.
Part number: CH2005-K01
Manufacturer: Cylinder Works
Cylinder Works 05-21 Yamaha YZ 125 125cc Standard Bore Cylinder Head
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Special order — availability will be confirmed after purchase.

OEM-style cast aluminum replacement cylinder head comes complete with cam caps and bolts for an out-of-the-box, ready-to-go installation. The unshrouded combustion chamber is designed to improve airflow, featuring a blended bowl and competition-grade valve job.

Shortened valve guides accept high lift cams for greater torque and enhanced power

C630 nickel/aluminum valve seats and guides are easier on valve to reduce wear

Cylinder Works 05-21 Yamaha YZ 125 125cc Standard Bore Cylinder Head

Valves, springs, retainers and lifters are sold separately

Stock-shaped ports deliver high performance

No vehicle listing found We do not have a vehicle-specific fitment row for this product yet.

This does not automatically mean the part is universal. Send us your year, make, model, trim, and the part number before ordering.

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