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1968 Honda CB450K Exhaust Port Gaskets

The exhaust choices here for a 1968 CB450K are port gaskets supplied individually or in a ten-pack. Both listings reference the same Honda replacement numbers. Match the sealing position and reference first, then choose the package that suits your repair or workshop stock.

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Honda CB500 CB450 CL450K2 exhaust headpipe gasket (each) 18291-283-010

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-283-010

$3.58 USD
17-2817
Replace one exhaust port gasket on your CB500T or CB450/CL450 with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-283-010 / #18291-ME9-000 / #18291-MM8-880.Sold...
Honda CB500 CB450 exhaust headpipe gaskets (pk 10) 18291-283-010

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-283-010

$29.95 USD
17-3817
Stock up on exhaust port gaskets for your CB500T or CB450/CL450 with this 10-pack, replacing OEM #18291-283-010 / #18291-ME9-000 / #18291-MM8-880.Key Features• Exhaust port...
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1968 Honda CB450K · Exhaust Buying guide

Choose the gasket quantity for the work being done

These gaskets serve the exhaust-port joint rather than supplying an exhaust system or muffler. The single listing explicitly supplies one piece, while the pack supplies ten. Keep package quantity separate from the number your motorcycle job requires.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-283-010 Exhaust port gasket — one pieceReplacement gasket referenced to Honda 18291-283-010 / 18291-ME9-000 / 18291-MM8-880. Sold individually; order the quantity required.View part Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-283-010 Exhaust port gaskets — pack of tenTen replacement exhaust port gaskets per pack, with the same three Honda references as the individual option. Choose the pack for the gasket quantity your work requires.View part

Buy for the number of joints you will service

The individual product supplies one gasket, so use your job’s actual gasket requirement to set the order quantity. A ten-pack is a package choice, not a statement that ten gaskets belong on the motorcycle. Compare the two listings before selecting a quantity for a single repair or repeated workshop use.

Keep exhaust hardware separate

The offered products are exhaust-port sealing gaskets. They do not establish included collars, nuts, studs or a complete exhaust assembly. Check the mounting pieces you intend to retain and identify any separate replacements needed before assuming a gasket order completes the whole exhaust job.

Buying questions

Do the single and ten-pack replace different Honda references?

Both listings give 18291-283-010, 18291-ME9-000 and 18291-MM8-880. The stated distinction is package quantity: one gasket versus ten. Confirm the reference and sealing position before choosing the package that suits your work.

Are these confirmed for any aftermarket headpipe?

The listings identify the Honda applications and replacement references, not every aftermarket headpipe arrangement. Check the sealing joint on your fitted exhaust and the required gasket reference before ordering, particularly if the pipe or engine-side fitting has changed.

Can these be used to select a muffler-joint seal?

The listings identify exhaust port gaskets for the headpipe connection at the engine. A seal elsewhere in the exhaust needs its own reference and fitment check. Do not choose a muffler-joint seal from these port-gasket references alone.

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