Cylinder Head Cover Gasket For CD250 CB250 Nighthawk Two Fifty Police CM250 CMX250 CA250 12391-KB4-670 Performance: Prevents leakage and maintains engine performance The Cylinder Head Cover Gasket helps maintain engine performance by providing a seal for the cylinder head cover.Constructed from rubber, it is built to endure regular operating conditions and support consistent engine function.Its resilient design supports long-term use under typical riding conditions, helping smooth whether used in urban commuting or longer rides. Designed for compatibility with various models including CD250, CB250, CM250, CMX250, and CA250, this gasket fits multiple model years and configurations.It offers a direct fit for applications requiring 12391-KB4-670.Installation is straightforward and can be completed with basic mechanical knowledge, making it a practical replacement option for maintaining engine integrity. Important: This is an independent aftermarket part.Brand/model references serve only to show compatibility.