The Cylinder Works Replacement Cylinder Head Kit (CH2001-K01) is a high-performance, ready-to-install cylinder head designed for the Yamaha YZ250 (1999 onward) — featuring a durable construction that eliminates the cost and lead time of re-plating a damaged OEM head while maintaining the combustion chamber geometry required for correct engine performance.

A damaged or cracked cylinder head on a two-stroke engine can be a significant repair cost if you pursue OEM re-plating. Cylinder Works provides a direct bolt-on alternative that arrives ready to install — pre-machined to OEM combustion chamber dimensions, with correct squish clearance and head gasket surface finish for a straightforward drop-in assembly without further machining.

The YZ250 is a long-running competitive platform and the 1999-onward architecture is widely used in both competitive and recreational riding. Cylinder Works' experience with OEM-geometry two-stroke components makes this a trusted solution for engine builders who need reliability without the expense of genuine Yamaha replacement parts.

Features:

• Ready-to-install — no re-plating or additional machining required
• Direct bolt-on for Yamaha YZ250 (1999 onward)
• OEM combustion chamber geometry — correct squish and compression
• Cost-effective alternative to OEM cylinder head replacement
• Durable construction for long service life

Fitment: Yamaha YZ250 1999 onward. Please confirm model year before ordering.