1978 Honda CB400TI Hawk I Exhaust Parts

Exhaust repairs on a 1978 Hawk I start with identifying the joint or muffler being replaced. The available slip-in muffler is sold individually, while the port rings and larger joint gaskets serve different sealing positions. Inspect the system actually on the bike.

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Honda CB900 CB650 CB550 exhaust headpipe gasket (each) 18212-634-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

$3.58 USD

Replace one exhaust port gasket on your CB650, CB400, CB450, or modern CB900F with this Exhaust Port Gasket, 1 piece, replacing OEM #18212-634-000 /...

Honda CB900 CB650 CB550 exhaust headpipe gaskets (pk 10) 18212-634-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18212-634-000

$27.95 USD

Stock up on exhaust port gaskets for your CB650, CB400, CB450, or modern CB900F with this 10-pack, replacing OEM #18212-634-000 / #18291-236-000 / #18291-MN4-920.Key...

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Honda CB450 CB400 exhaust joint gasket for headpipe 18391-413-000

1978-86 Honda CB450 / CB400 Exhaust Joint Gasket for Headpipe ~ Replaces 18391-413-000

$10.73 USD

Replace your CB400 or CB450 exhaust joint gasket with this Exhaust Joint Gasket for Headpipe, replacing OEM #18391-413-000 / #18391-413-010.Key Features• Exhaust joint gasket...

Honda CB750 CB650 CB550 CB450 exhaust crossover gasket 18392-413-000

Honda CB Exhaust Crossover Gasket ~ Replaces 18392-413-000

$9.95 USD

Replace your Nighthawk or CB400/CB450 exhaust crossover gasket with this Exhaust Crossover Gasket, replacing OEM #18392-413-000 / #18392-MG7-750. Fits the mid-'80s CB750SC/CB650SC/CB550SC Nighthawks plus...

Chrome Slip In Style Muffler ~ 23 7/8" Long

$139.95 USD

Chrome Slip In Honda Style Muffler ~ 23 7/8" Long with 4" Diameter. Fits to bikes that use a slip in inlet such as...

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1978 Honda CB400TI Hawk I · Exhaust Buying guide

Match each exhaust part to its connection

Choose a muffler by inlet style and mounting, then select seals for the joints you will open. The original collector arrangement and an aftermarket system can need different checks even on the same model.

Parts to consider

Chrome slip-in muffler23 7/8 inches long and 4 inches in diameter, with an adjustable slide bracket. Fits either side and is sold individually.View part

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000

Single exhaust-port gasketOne exhaust-port gasket; replaces references 18212-634-000, 18291-236-000 and 18291-MN4-920.View part

Honda CB Exhaust Crossover Gasket ~ Replaces 18392-413-000

Exhaust crossover gasketReplacement for references 18392-413-000 and 18392-MG7-750. Also specified with the featured slip-in muffler at the original collector.View part

Plan the muffler and seal together

The chrome muffler is 23 7/8 inches long, 4 inches in diameter and supplied with an adjustable slide bracket. It fits either side and is sold individually. Its product information specifies the featured crossover gasket for connection to the original collector.

Choose the gasket for the opened joint

The single port gasket and the linked ten-pack share the same replacement references, but the pack contains ten port rings rather than a complete exhaust gasket kit. The linked headpipe joint gasket serves a different joint; select by location as well as shape.

Buying questions

Does one muffler purchase supply both sides?

No. The chrome slip-in muffler is sold individually and can be fitted on either the left or right. Order two if replacing both mufflers, after confirming the connection and mounting arrangement.

Can I use these mufflers with a changed exhaust collector?

Check the actual inlet connection, available space and mounting position before ordering. The muffler is intended for a slip-in arrangement; a replacement collector or custom exhaust may require a different connection.

Is the ten-pack a complete exhaust gasket set?

No. It contains ten exhaust-port gaskets of the same type. The crossover and headpipe joint gaskets are separate products for other sealing positions; order according to the joints being serviced.

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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