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1974 Honda CB450K Headpipe Port Seal Choices

Choose the port-gasket purchase for your 1974 CB450K from the joint being serviced and the quantity required. The individual listing supplies one seal, while the bulk option supplies ten. Compare their shared Honda references with the fitted headpipe requirement before calculating the order.

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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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1974 Honda CB450K · Exhaust Buying guide

Identify the port-seal requirement before selecting the package

Both gasket choices list Honda 18291-283-010 / 18291-ME9-000 / 18291-MM8-880. The package difference is explicit supplied quantity, not a stated material or performance change. Exact dimensions and a mandatory whole-bike replacement count are not given.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-283-010 One exhaust port gasket per purchaseSold individually with Honda 18291-283-010 / 18291-ME9-000 / 18291-MM8-880 references. Set quantity from the matching port joints included in the work.View part Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-283-010 Ten matching port gaskets per packBulk supply with the same stated Honda references as the individual option. Confirm required service quantity separately from the explicit ten-piece package contents.View part

Choose the supplied count after confirming the sealing part

First identify the matching gasket at the headpipe port, then count the pieces required by the planned work. Individual purchases and a ten-pack offer different quantities of the described seal. Neither package count states how many must be renewed on the motorcycle or confirms other exhaust hardware as supplied.

Obtain fit information for a changed headpipe joint

The replacement references identify the intended gasket without providing exact physical dimensions. Compare the sealing arrangement of modified headpipes and establish the component required there. Confirm missing measurements before selecting by application alone, and assess any separately needed retaining parts rather than expecting the gasket package to complete the mounting job.

Buying questions

How should I compare the options for service work on only part of the exhaust?

Identify the described port seals required at the joints included in the work and total those pieces. The purchasing choices supply one or ten. Set the order from that plan and any desired spare stock without treating either unit as a mandatory complete-bike quantity.

How do I establish bulk contents when its photograph shows a single gasket?

Use the written quantity: the bulk description explicitly supplies ten port gaskets, while the individual listing supplies one. The photograph illustrates the sealing part rather than every packaged piece. Compare those stated contents with the matching joints you intend to service.

What should I compare if a replacement headpipe uses an unfamiliar seal?

Identify the actual engine-side sealing component and the dimensions or reference it requires. These listings give replacement references without exact gasket measurements. Confirm the changed joint’s requirement before choosing the individual or bulk option, and keep other joint seals on separate purchase lines.

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