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Exemple : oil filter (filtre à huile) ou une référence OEM.

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Pièces pour motos Honda

Choisissez votre modèle et l’année pour voir les pièces répertoriées pour votre moto.

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-254-000

$3.42 USD
17-2812
Replace one exhaust port gasket on your CB750 or big-bore DOHC CB with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-254-000 / #18291-MM5-860....

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-MM5-860

$6.84 USD
18-7013
Replace one cylinder-head-to-exhaust-headpipe gasket on your big-bore Honda with this Cylinder Head to Exhaust Headpipe Gasket, 1 piece, replacing OEM #18291-MM5-860. Exceptionally broad fitment...

1985 Honda CB700SC · Headpipe Sealing Gaskets Buying guide

Check the gasket reference and individual quantity

Use the joint location and current specification to choose the gasket. Both listings cover the CB700SC headpipe application; compare their overlapping references and ask about any material difference that matters to the order.

Separate quantity from engine layout

Each selected listing supplies one gasket. Resealing all four CB700SC cylinder-head exhaust ports therefore requires four individual pieces. If only some joints are disturbed, order for those locations and inspect the sealing faces and mounting hardware before assembly.

Match the gasket reference and specification

Their stated CB700SC applications and replacement references overlap. If material or a dimensional difference matters to your choice, obtain that specification before ordering. An alternate catalog handle alone does not establish a different construction or a different place on the motorcycle.

Buying questions

Can an old exhaust-port gasket be left in place under a new one?

No. The replacement guidance calls for removal of the old crush gasket from the disturbed port before installing a fresh one. Check the seat carefully rather than stacking another gasket on top of an old compressed seal.

Do the two Honda references identify different exhaust-joint locations?

Both selected products cover the CB700SC cylinder-head-to-headpipe joint and share reference 18291-MM5-860; one also lists 18291-254-000. The extra reference does not make that item a collector or muffler-joint gasket, or prove a different material.

Can I use one at a collector connection?

The supported location is the cylinder-head-to-headpipe joint. Identify the collector’s sealing arrangement separately and use the requirements of the fitted exhaust system.

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