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1972 Honda CB350K4 Exhaust Seals & Service Parts

For the 1972 CB350K4, the available exhaust service choices focus on the cylinder-head seals and stand-stop rubber. Inspect the fitted pipes before ordering. Choose gasket quantities around the ports being opened and check the stand’s contact point if the exhaust has been changed.

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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 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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1972 Honda CB350K4 · Exhaust Parts Buying guide

Prepare the sealing and stop points before refitting pipes

Honda specifies two exhaust-port gaskets for the K4 twin. A single gasket and a ten-pack offer different order sizes; the stopper rubber addresses a separate contact point around the fitted exhaust.

Parts to consider

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-286-000 Individual exhaust port gasketOne gasket per item, with references 18291-286-000 / 18291-286-306. Two are needed for both cylinder-head exhaust ports.View part Honda CB Kick Stand Stopper Rubber ~ Replaces 95011-61000 Stand stopper rubberReplacement stopper rubber A, reference 95011-61000. Compare the stop location when an aftermarket exhaust is fitted.View part

Related parts: Ten-pack of exhaust port gaskets

Choose the package for the job

The individual gasket is sold each, while the linked workshop pack contains ten. Both reference 18291-286-000 / 18291-286-306. For both cylinder-head exhaust joints, Honda specifies two gaskets; choose the package around the current repair and any sensible workshop stock requirement.

Inspect the fitted hardware around the seal

Exhaust gaskets do not establish that the flanges, split collars or mounting hardware are serviceable. Check those pieces before refitting the pipes. The stopper rubber should also be compared with its actual mounting and contact point, especially where a custom exhaust has altered the original arrangement.

Buying questions

How many gaskets do I need for both headpipes?

Honda specifies two exhaust-port gaskets for the K4 twin. Order two individual items for both ports, or choose the ten-pack if you also want spares for future work.

Does a ten-pack mean ten motorcycle sets?

No. It contains ten individual gaskets. A job renewing both cylinder-head exhaust joints uses two, so package quantity should not be confused with the number of complete two-port services.

Should I order the stopper rubber for a custom exhaust?

Compare the existing stop location and the stand’s contact point first. The rubber references 95011-61000, but a modified exhaust can change how the stand is stopped and the clearance available.

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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