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1978 Honda CB550K Exhaust Port Gaskets and Fittings

Check the head-end exhaust connection before choosing replacement seals or hardware. The selection offers individual and ten-pack port gaskets, a separate finned clamp and a stud set. Compare the fitted parts and count what the repair needs instead of expecting one product to supply everything.

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Currently viewing Exhaust

Honda motorcycle parts

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Honda CB kick stand stopper rubber 95011-61000

Honda CB Kick Stand Stopper Rubber ~ Replaces 95011-61000

$2.95 USD
07-4624
Replace a worn kick stand stopper with this Kick Stand Stopper Rubber "A", a direct replacement for OEM #95011-61000. Exceptionally broad fitment across the...
Honda CB550 CB500 CB200 exhaust headpipe gasket (each) 18291-216-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-216-000

$4.13 USD
17-2816
Replace one exhaust port gasket on your CB500/CB550 or smaller Honda with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-216-000 / #18291-MN5-650. Fits...
Honda CB550F CB550K CB500K exhaust stud set

1971-78 Honda CB550F / CB550K / CB500K Exhaust Stud Set

$34.95 USD
73-1137
Restore secure and leak-free exhaust mounting on your vintage Honda with this premium Exhaust Stud Set. Designed for CB500K, CB550K, and CB550F models, this...
Honda CB550 CB500 CB400 CB350 CB100 chrome exhaust clamp 18231-323-000

Honda CB Chrome Exhaust Clamp ~ Replaces 18231-323-000

$24.95 USD
73-0090
Replace your exhaust clamp with this Chrome Exhaust Clamp, 14-fin type. Center-to-center mounting hole diameter 55mm. Replaces OEM #18231-323-000 / #18231-323-010 / #18231-333-010.Key Features•...
Honda CB550 CB500 CB200 exhaust headpipe gaskets (pk 10) 18291-216-000

Honda CB Exhaust Headpipe Gaskets ~ (Pk/10) ~ Replaces 18291-216-000

$32.95 USD
17-3816
Stock up on exhaust port gaskets for your CB500/CB550 or smaller twins with this 10-pack, replacing OEM #18291-216-000 / #18291-MN5-650.Key Features• Exhaust port gaskets,...
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1978 Honda CB550K · Exhaust Buying guide

Identify the gasket, clamp and stud pieces separately

The gasket quantities and hardware contents are distinct buying choices. Compare the port gasket references and clamp mounting-hole spacing with the retained connection, then assess the stud fasteners independently from seals and clamps.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-216-000 One exhaust-port gasketSingle gasket referencing 18291-216-000 and 18291-MN5-650. Choose the number needed for the repair instead of assuming a full gasket set.View part Honda CB Chrome Exhaust Clamp ~ Replaces 18231-323-000 Chrome finned exhaust-port clamp14-fin clamp with listed 55 mm center-to-center mounting-hole spacing. Compare that mounting measurement with the retained clamp, not the pipe diameter.View part 1971-78 Honda CB550F / CB550K / CB500K Exhaust Stud Set Studs, washers and nuts for the exhaustSet containing eight studs, eight washers and eight nuts. The named contents do not identify gaskets or finned clamps as included.View part

Related parts: Alternative ten-gasket purchase

Choose gasket quantity independently from hardware

The individual gasket is one piece, and the alternative pack contains ten of the listed gasket pattern. That pack size does not determine the number required on the motorcycle. Count the planned repair’s sealing pieces separately from decisions about retained studs, washers, nuts and finned clamps.

Read the clamp measurement at its mounting points

The clamp specification gives 55 mm between mounting-hole centers and identifies a 14-fin pattern. Compare those details with the fitted clamp before ordering. The stated mounting spacing does not provide pipe diameter, and a clamp purchase should not be assumed to include its surrounding seals and fasteners.

Common questions

Does a ten-pack mean ten gaskets are required for the repair?

It is the purchase quantity, not a specified repair requirement. Count the port gaskets needed for the planned work and compare the listed references, then choose individual gaskets or the ten-piece pack accordingly.

Are there only eight pieces in the stud set?

The set is described with eight studs, eight washers and eight nuts. Those are separate groups of hardware, and the stated contents do not include a gasket pack or finned clamp.

Can a stand stopper rubber serve as an exhaust gasket?

The stopper is identified as a stand component, not a port sealing gasket. Choose the separately described exhaust gasket for the stated port application and compare the existing connection rather than substituting a rubber mounting part.

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