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1983 Honda CB750SC Exhaust Sealing Parts

Plan exhaust sealing work on the 1983 CB750SC around the joints actually being opened. The featured headpipe gasket is supplied individually, with a related alternative sharing its replacement reference. Check the fitted exhaust and existing hardware before counting the rings needed for a localized or multi-port repair.

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Honda CB1100 CB1000 CB900 exhaust headpipe gasket (each) 18291-254-000

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....
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Honda CB1100 CB1000 CB900 exhaust headpipe gasket (each) 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...
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Honda CB1100 CB1000 CB900 CB750 Honda exhaust pipe joint collar 18233-425-000

Honda CB1100 / CB1000 / CB900 / CB750 Genuine Honda Exhaust Pipe Joint Collar ~ OEM 18233-425-000

$24.95 USD
99-5455
Upgrade or restore your classic Honda motorcycle with this Exhaust Pipe Joint Collar — precision‑engineered and made in Japan. This genuine OEM part #18233‑425‑000...
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1983 Honda CB750SC · Exhaust Sealing Parts Buying guide

Count the cylinder-head sealing joints

The featured gasket and related alternative serve the headpipe-to-cylinder-head connection. They are separate individual listings for that purpose, rather than two different seals intended to be combined at the same port.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-254-000 Individual exhaust port gasketOne cylinder-head exhaust gasket, references 18291-254-000 and 18291-MM5-860. Sold each.View part

Related parts: Individual headpipe gasket

Order the quantity for the opened ports

The gasket is sold each. Count the headpipes being disturbed and check any top-end or overhaul set already in the order for included exhaust gaskets. A small local repair and removal of multiple headpipes can require different numbers of individual sealing rings.

Inspect a changed exhaust directly

An aftermarket system may retain the original cylinder-head fitting but use different joints elsewhere. Identify the actual sealing location before choosing the gasket. Damaged pipes and worn retaining hardware need separate assessment; the headpipe gasket does not establish the repair for every exhaust leak.

Exhaust Sealing Parts questions

How many gaskets should I select?

Count the cylinder-head joints being opened. This gasket is sold individually, so compare the planned work with any exhaust gaskets already supplied by a larger engine package.

Should I buy both similar gasket listings?

They are alternatives sharing a replacement reference for the described headpipe joint. Compare the products and choose the appropriate item rather than assuming both should be used at one port.

Will it fit a replacement exhaust system?

Compare that system’s cylinder-head connection and sealing requirements first. The original-model application does not verify every downstream joint or custom pipe arrangement.

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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