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1981 Honda CB400TB Hawk Exhaust Parts

The 1981 Hawk’s exhaust order should follow the system actually fitted: left or right muffler, cylinder-head joint, or one of the sleeve joints around the collector. These choices let you repair a section without assuming a muffler purchase includes every seal.

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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
17-2813
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
17-3813
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
17-4504
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
17-4505
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 for Honda CB motorcycles

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

$139.95 USD
07-0020
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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Honda CB400T CB450T right stock type muffler 18330-443-782

1980-82 Honda CB400T / CB450T Right Stock Type Muffler ~ Replaces 18330-443-782

$139.95 USD
07-0027
Replace your right-side factory exhaust with this Right Side Stock Type Muffler, a direct replacement for OEM #18330-443-782. Fits the CB400T (1980-81) and CB450T...
Honda CB400T CB450T left stock type muffler 18430-443-782

1980-82 Honda CB400T / CB450T Left Stock Type Muffler ~ Replaces 18430-443-782

$139.95 USD
07-0026
Replace your left-side factory exhaust with this Left Side Stock Type Muffler, a direct replacement for OEM #18430-443-782. Fits the CB400T (1980-81) and CB450T...
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1981 Honda CB400TB Hawk · Exhaust Buying guide

Identify the exhaust section being renewed

Stock-type mufflers are side-specific. The original-style system also has distinct port and sleeve seals. Check for changed headers or a missing collector before choosing parts for the factory arrangement.

Parts to consider

1980-82 Honda CB400T / CB450T Left Stock Type Muffler ~ Replaces 18430-443-782 Left stock-type mufflerLeft-side replacement for the original-style system; reference 18430-443-782. Choose the correct side.View part 1980-82 Honda CB400T / CB450T Right Stock Type Muffler ~ Replaces 18330-443-782 Right stock-type mufflerRight-side replacement for the original-style system; reference 18330-443-782. Check current availability.View part Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18212-634-000 Individual exhaust-port gasketOne gasket for an exhaust-port joint. Choose this listing when ordering individual replacement rings.View part

Related parts: Headpipe joint gasket · Collector-to-muffler gasket · Custom slip-in muffler

Order the side that is damaged

The stock-type mufflers are separate left and right products, using references 18430-443-782 and 18330-443-782 respectively. Compare the collector connection and rear mounting arrangement before choosing one. A changed exhaust system can retain a similar silhouette while using different joints or brackets.

Build the seal order around open joints

The individual exhaust-port gasket is different from the linked headpipe-joint and collector-to-muffler sleeves. Identify which joints will be separated during the repair, then select those seals deliberately. The custom slip-in muffler is another option only after checking its dimensions, inlet arrangement and mounting clearance.

Buying questions

Are the stock-type mufflers sold as a left-and-right set?

The left and right mufflers are separate product choices. Order the side or sides being replaced, and check each item’s current availability before arranging the rest of the repair.

Will a muffler fit if the collector has been removed?

That needs a fresh fit check. These original-style connections assume the matching exhaust arrangement; a removed collector or changed header can alter the inlet and mounting requirements.

Which gasket goes at the cylinder head?

Choose the exhaust-port gasket for that joint. The sleeve-type headpipe-joint and collector-to-muffler gaskets seal other connections and should not be substituted merely because they appear in the same category.

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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