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1983 Honda CB750SC Headpipe Gaskets

Choose headpipe gaskets for the cylinder-head connections being serviced on your 1983 CB750SC. The individual listings share a replacement reference and should be compared as alternatives. Before ordering several loose rings, check whether a larger engine gasket package already supplies the exhaust seals the repair needs.

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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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1983 Honda CB750SC · Headpipe Gaskets Buying guide

Check gasket quantity before completing the order

The featured ring replaces reference 18291-MM5-860 at the headpipe connection. It is supplied individually. Count the disturbed ports and compare the fitted exhaust rather than assuming the broad category supplies a full engine set.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-MM5-860 Individual headpipe gasketOne cylinder-head-to-headpipe gasket, reference 18291-MM5-860. Sold each.View part

Related parts: Individual exhaust port gasket

Keep the joint reference specific

The headpipe gasket serves the connection at the cylinder head. A leak at another exhaust joint needs that joint’s compatible part identified separately. Compare the actual pipe arrangement before ordering, particularly if the original exhaust has been replaced with a custom system.

Avoid duplicating a larger package

Some early Nighthawk engine gasket packages list four headpipe gaskets. Review their complete contents before adding individual rings for the same repair. If only one port is being disturbed, the loose gasket format supports a smaller, correctly counted order.

Headpipe Gaskets questions

Does one purchase contain a set of four?

The featured product contains one gasket. Four-piece quantities can appear in larger engine packages, so keep those included sets distinct from an individual ring purchase.

How do I avoid ordering the same seals twice?

Check the contents of the top-end or overhaul package already selected. Compare its exhaust-gasket quantity with the ports being opened, then add only any extra individual rings needed.

What should I check with a non-original exhaust?

Identify its sealing arrangement at the cylinder head and compare the required gasket reference. Do not assume that other joints or fasteners remain identical after an exhaust conversion.

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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