Pièces pour motos Honda
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1978 Honda CB400A · Gaskets & Valve Seals Buying guide
The separate Athena cover gasket and CB400A-specific valve-stem seal provide clear repair choices. Keep top-end sealing work separate from the Hondamatic’s crankcase and transmission-cover requirements when planning a larger rebuild.
The Athena gasket replaces reference 12328-413-830 and is specifically listed for the 1978 CB400A. Compare the cover outline and the existing gasket before ordering, particularly if the engine or cover has been replaced during the motorcycle’s life.
The CB400A valve-stem seal is sold each under reference 12209-413-003. Count the seal positions included in your planned work. For a broader overhaul, obtain a component list that covers the Hondamatic joints you will actually open before choosing an assortment.
No. The CB400A-specific replacement is sold individually. Order for the positions being serviced; do not use a quantity printed for a different Honda engine.
Choose the separate Athena valve-cover gasket with reference 12328-413-830. It is listed for the 1978 CB400A and lets you order for that joint without assuming overhaul-set contents.
Check an itemized contents list against every joint being opened, including Hondamatic-specific covers. A CB400 family application does not describe which individual case gaskets, seals or O-rings are supplied.
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