This is a genuine OEM Honda cylinder head cover designed for classic horizontal single-cylinder OHC 90cc engines. Made from durable die-cast aluminum, it features cooling fins for heat dissipation and the original HM616B casting mark for factory-correct fitment. * Genuine OEM Honda cylinder head cover * Material: Die-cast aluminum * Casting Mark: HM616B * OEM Numbers: 12301-028-010, 12331-028-000, 12331-028-010 * Finned design supports engine cooling and original vintage appearance Fitment & Compatibility * Honda CT90 Trail 90: 1966-1979 * Honda S90 / Super 90: 1964-1969 * Honda CL90 / Scrambler 90: 1967-1969 * Honda SL90 / Motosport 90: 1969 * Honda ST90 / Trailsport 90: 1973-1975 * Honda ATC90: 1970-1978 * Honda C90 / Cub 90: Vintage OHC variants Please verify your model, year, OEM number, and casting mark before purchase.
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used stain remover
Worldwide shipping available
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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
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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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