Replace your CB650 valve cover gasket with this Valve Cover Gasket (cylinder cover), replacing OEM #12391-460-770.
Key Features
• Valve cover (cylinder cover) gasket
• Replaces OEM #12391-460-770
• Interchangeable with Honda 12391-426-000
Fitment / Compatibility
• Honda CB650 (1979‑82)
• CB650C (1980‑81) Custom
• CB650SC (1982) Nighthawk
Part Number: 18-6995
Check the listed model and year, then read any fitment notes in the description.
| Make | Model | Year |
|---|---|---|
| Honda | CB650 | 1979 |
| Honda | CB650 | 1980 |
| Honda | CB650 | 1981 |
| Honda | CB650 | 1982 |
| Honda | CB650SC Nighthawk | 1982 |
| Honda | CB650C Custom | 1980 |
| Honda | CB650C Custom | 1981 |
No listed models match your search.
Free ground shipping over $50
To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.
| Destination | Delivery time |
|---|---|
| USA | 4–7 business days |
| Canada | 2–6 business days |
Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.
60-day returns on eligible parts
No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.
Electrical parts are excluded from standard returns. Check return eligibility.
Start your return below. Wait for our instructions before mailing a part back.
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Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.
Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.
Frequently Asked Questions
What does CB650 gasket 18-6995 seal?
It is the valve-cover or cylinder-cover gasket for the listed 1979-1982 CB650-family engines.
Which Honda valve-cover gasket does 18-6995 replace?
One gasket is included and cross-references Honda OEM 12391-460-770.
Is this the cylinder-head gasket?
No. It seals the removable top cover; the cylinder-head gasket below the head is a separate part.