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1978 Honda CB400TI Hawk I Engine Gaskets

For a 1978 Hawk I, replacing one leaking cover gasket and resealing a dismantled engine are different purchases. The separate Athena valve-cover gasket keeps a small repair focused; the overhaul set is the option to assess against a broader repair list.

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Honda CB400 Athena overhaul gasket set

1978-81 Honda CB400 Athena Overhaul Gasket Set

$119.95 USD
18-0103
Rebuild your CB400 engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda, Kawasaki, Suzuki, and...
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Honda CB450 CB400 valve cover gasket 12328-413-830

1978-86 Honda CB450 / CB400 Valve Cover Gasket ~ Replaces 12328-413-830

$31.95 USD
12-1014
Replace your CB400 or CB450 valve cover gasket with this Athena Brand Valve Cover Gasket, replacing OEM #12328-413-830. Fits the full CB400A/TI/TII/T range plus...
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1978 Honda CB400TI Hawk I · Engine Gaskets Buying guide

Match the gasket purchase to the opened joints

Two Athena options cover different repair scopes. Identify which engine joints will be disturbed, then compare the individual cover gasket or the overhaul set with that list.

Parts to consider

1978-86 Honda CB450 / CB400 Valve Cover Gasket ~ Replaces 12328-413-830 Athena valve-cover gasketSeparate Athena gasket for the valve cover, replacing Honda reference 12328-413-830.View part 1978-81 Honda CB400 Athena Overhaul Gasket Set Athena engine gasket setOverhaul gasket set with a specified 1978–79 CB400TI application. Match its contents to the joints being opened.View part

When the cover is the only leak

The separate valve-cover gasket avoids buying an overhaul set for a single joint. Check the cover and sealing surfaces during the repair; a new gasket cannot correct a damaged cover. Use the service manual for preparation and fastening specifications.

Prepare an overhaul list before buying

Choose the overhaul set by its CB400TI application and by the joints involved in your work. Its source description does not itemize every piece, so confirm any essential gasket or oil seal rather than treating the word overhaul as a complete parts inventory.

Common buying questions

Does the overhaul set include every engine oil seal?

A complete oil-seal inventory is not established for this set. Before an engine strip, have the current contents checked against the specific seals and gaskets your repair will disturb.

Is the separate cover gasket a Honda-branded part?

It is an Athena-brand replacement using Honda reference 12328-413-830 for identification. Choose it by the cover application and shape, rather than treating the reference number as a claim of Honda manufacture.

Which option suits a valve-cover-only repair?

The individual valve-cover gasket is the narrower purchase. The overhaul set is worth considering when several engine joints will be opened, after its contents have been compared with the repair plan.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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