This genuine OEM Honda cylinder head valve cover (Part Number: 12311-415-000) is designed for classic Honda 500cc longitudinal V-twin engines. Made from durable cast aluminum, it features horizontal cooling fins that help dissipate heat while protecting the valvetrain and sealing engine oil inside the cylinder head. It is suitable for factory restorations, cafe racer projects, and custom vintage builds. Compatible Models & Fitment * Honda GL500 / GL500D Silver Wing — 1981–1982 * Honda GL500I Silver Wing Interstate — 1981–1982 * Honda CX500 Standard / Custom / Deluxe — 1978–1982 * Honda CX500EC Eurosport — 1982 The symmetrical mounting pattern allows use on either cylinder head. Verify the finish and exact application for your specific model year before installation.
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used degreaser
Worldwide shipping available
Express shipping available at checkout
Estimated delivery: 2-5 business days
All items are carefully packaged for safe transit
Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
Contact support for return authorization
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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