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1981 Honda CB750K Exhaust Gaskets & Manifold Hardware

Choose the sealing piece or manifold hardware needed for your 1981 Honda CB750K exhaust repair. The port gasket and headpipe joint gasket have separate listings, alongside individual manifold studs and a stud-and-nut kit. Check the damaged part and the kit’s actual contents before setting your order quantities.

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Honda CB1100 CB1000 CB900 exhaust headpipe gasket (each) 18291-254-000

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-254-000

$3.42 USD
17-2812
Replace one exhaust port gasket on your CB750 or big-bore DOHC CB with this Exhaust Port Gasket, 1 piece, replacing OEM #18291-254-000 / #18291-MM5-860....
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 CB1100 CB1000 CB900 exhaust headpipe gasket (each) 18291-MM5-860

Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-MM5-860

$6.84 USD
18-7013
Replace one cylinder-head-to-exhaust-headpipe gasket on your big-bore Honda with this Cylinder Head to Exhaust Headpipe Gasket, 1 piece, replacing OEM #18291-MM5-860. Exceptionally broad fitment...
Honda CB750C CB750K CB750L exhaust manifold stud 90035-425-000

1979-82 Honda CB750C / CB750K / CB750L Exhaust Manifold Stud ~ Replaces 90035-425-000

$4.45 USD
73-0988
Replace your exhaust manifold stud with this Exhaust Manifold Stud, 8mm x 55mm, replacing OEM #90035-425-000.Key Features• Exhaust manifold stud• 8mm x 55mm• Replaces...
Honda CB900C CB900F CB750K exhaust stud and flange nut set

1979-82 Honda CB900C / CB900F / CB750K Exhaust Stud & Flange Nut Set

$34.95 USD
73-1140
Restore your classic Honda’s exhaust system with this premium Exhaust Stud Set, engineered for durability and a precise fit. This 8-piece kit includes eight...
Honda CB750K CB750L CB650 exhaust joint gasket for headpipe 18391-425-000

1979-82 Honda CB750K / CB750L / CB650 Exhaust Joint Gasket for Headpipe ~ Replaces 18391-425-000

$9.95 USD
17-4506
Replace your DOHC CB750 or 1979 CB650 exhaust joint gasket with this Exhaust Joint Gasket for Headpipe, replacing OEM #18391-425-000 / #18391-MJ4-000.Key Features• Exhaust...
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1981 Honda CB750K · Gaskets & Mounting Hardware Buying guide

Separate the two gasket types from stud hardware

Two different gasket listings address named exhaust sealing parts. The hardware choices include a separately listed manifold stud and a stud-and-flange-nut kit. Use the product references to identify the repair, then confirm uncertain package quantities.

Parts to consider

1979-82 Honda CB750K / CB750L / CB650 Exhaust Joint Gasket for Headpipe ~ Replaces 18391-425-000 Exhaust headpipe joint gasketJoint gasket referencing 18391-425-000 and 18391-MJ4-000. Its listing includes the 1981 CB750K; compare the fitted joint before purchase.View part Honda CB Exhaust Headpipe Gasket (Each) ~ Replaces 18291-254-000 Individual exhaust port gasketSingle port gasket referencing 18291-254-000 and 18291-MM5-860. Sold individually; order the quantity required.View part 1979-82 Honda CB900C / CB900F / CB750K Exhaust Stud & Flange Nut Set Manifold stud and flange nut kitStud-and-flange-nut package listed for the 1981 CB750K. Ask us to confirm the supplied quantities because the total-piece wording is inconsistent.View part

Match the gasket to the named sealing part

The port gasket and headpipe joint gasket list different Honda references. Compare the removed or visible sealing piece with the listing photograph and description instead of choosing whichever gasket appears first. On a modified exhaust, verify the actual joint before assuming the stock-type catalog part still applies.

Do not turn a kit label into a confirmed quantity

The stud kit uses eight-piece wording and also names eight studs plus eight flange nuts. That conflict needs confirmation before purchase. The separate manifold stud listing is another buying choice, not proof of the kit’s contents. Set the order around the hardware actually required for the repair.

Common questions

Does the stud kit include the gaskets shown here?

The kit description names studs and flange nuts, not exhaust port or headpipe joint gaskets. Those gaskets have separate listings. Choose the sealing parts independently after comparing their references and photographs with the exhaust joint being repaired.

Can I use the same gasket listing for every exhaust joint?

The two listed gasket types have distinct names and reference numbers. Identify which sealing piece needs replacement and compare it with the chosen product. Check each joint on the fitted exhaust separately before deciding which gasket to order.

How many pieces should I expect in the stud-and-nut kit?

Confirm that with us before ordering. The description’s eight-piece wording conflicts with its separate statement of eight studs and eight flange nuts. Until the supplied contents are confirmed, avoid setting your order quantity around either interpretation of the kit label.

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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