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1973 Honda CL350K5 Exhaust Port Sealing

For exhaust work on a 1973 Honda CL350K5, the available choices here address the headpipe-to-engine seal. Decide which joints the job will disturb, verify their gasket match and choose between a single-piece purchase and a ten-pack for a broader parts order.

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Honda CB360 CB350 exhaust headpipe gaskets (pk 10) 18291-286-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-286-000

$29.95 USD
17-3811
Stock up on exhaust port gaskets for your CB350, CL350, SL350, or CB360 with this 10-pack of Exhaust Port Gaskets, replacing OEM #18291-286-000 /...
Honda CB360 CB350 CL350K0 exhaust headpipe gasket (each) 18291-286-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-286-000

$3.58 USD
17-2811
Replace one exhaust port gasket on your CB350, CL350, SL350, or CB360 with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-286-000 / #18291-286-306.Sold...
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1973 Honda CL350K5 · Exhaust Port Sealing Buying guide

Order port seals around the planned exhaust work

Both package choices carry replacement references 18291-286-000 and 18291-286-306. The practical choice is quantity, with the fitted pipe connection checked separately when exhaust components have been changed.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-286-000 Single exhaust-port gasketOne gasket; replacement references 18291-286-000 and 18291-286-306.View part Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-286-000 Ten-pack of port gasketsPack of ten exhaust-port gaskets using references 18291-286-000 and 18291-286-306.View part

Buy for the work being undertaken

An individual gasket suits a precisely counted need; a ten-pack offers more pieces for planned service or workshop stock. Keep that packaging decision separate from the number required at the motorcycle. Count the joints involved in the actual job rather than treating either package as a complete exhaust kit.

Check a changed pipe at the engine connection

When an aftermarket or replacement pipe is fitted, identify its engine-end sealing requirement before using the original-style reference as your only guide. Ask the installer to assess the mating parts and confirm the appropriate gasket. A larger gasket order does not resolve a mismatched or damaged connection.

Buying questions

Does the ten-pack use a different replacement reference?

The single and ten-pack products both cite 18291-286-000 and 18291-286-306. The documented difference is supplied quantity, so choose the package only after confirming the gasket match for the fitted connection.

How many gaskets should I order for pipe removal?

Count the exhaust-port joints your work will open and confirm the service requirement with the installer. Package size is not a statement of the number needed for every possible repair.

Will these references confirm an aftermarket pipe’s seal?

They provide a useful starting comparison, but a changed pipe needs its own check. Identify the pipe’s connection and sealing requirements with the maker or installer before assuming original-style gasket compatibility.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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