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1981 Honda CB400TB Fork Seals & Dust Boots

For the 1981 CB400TB air forks, distinguish the oil seal from the external dust boot before ordering. The oil seal measures 33 × 46 × 11 mm, while the 33 mm dust boots are supplied as a set of two for the original fork.

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Currently viewing Fork Tubes, Springs, Seals & Boots

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Honda CB450 CB400 CB360 fork seals

Honda CB450 / CB400 / CB360 Fork Seals

$21.95 USD
27-1019
Replace your CB400 or CB360 fork seals with this Fork Seal Set, 33 x 46 x 11mm. Made in Japan by OEM supplier.Key Features•...
Honda CB450 CB400 CB360 CL360K0 fork dust boot set 91254-413-881

Honda CB Fork Dust Boot Set ~ Replaces 91254-413-881

$15.95 USD
73-0189
Refresh your fork seal dust boots with this Fork Seal Dust Boots Set of 2. 33mm size. Replaces OEM #91254-413-881.Key Features• Fork seal dust...
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1981 Honda CB400TB Hawk · Fork Seals & Dust Boots Buying guide

Choose oil seals and dust boots as separate parts

The oil seal retains fork oil; the dust boot covers the top of the slider. Compare both locations and the condition of the fork tubes when assembling a sensible fork-service order.

Parts to consider

Honda CB450 / CB400 / CB360 Fork Seals Fork oil seal set33 × 46 × 11 mm oil seals, listed for the 1981 CB400T fork and made in Japan.View part Honda CB Fork Dust Boot Set ~ Replaces 91254-413-881 Fork dust boot setTwo 33 mm dust boots supplied, replacing Honda 91254-413-881.View part

Inspect both parts while planning service

The oil seal and dust boot are separate items in Honda’s 1981 fork diagram. A split or hardened boot deserves attention even when the oil seal is the reason for the repair. Check the tube surfaces and other fork components under the service manual’s inspection guidance.

Use the air-fork procedure for this year

The original 1981 forks have an air connection at the caps. Those caps are under air and spring pressure, so consult the specific Honda procedure before opening them. The featured seals and boots do not constitute every sealing part used in the fork assembly.

Buying questions

Do the dust boots come as two pieces?

Yes. The dust boot set contains two 33 mm boots and references Honda 91254-413-881, matching the original two fork legs. Compare the fitted fork if the front end has been changed.

Can new dust boots cure a leaking oil seal?

The boot and oil seal occupy different positions and have different functions. If fork oil is leaking, inspect the oil seal, tube and related components; changing only the external boot does not replace the oil seal.

What should I check on a swapped front end?

Identify the fitted fork and measure the old seal dimensions before ordering. The 33 × 46 × 11 mm oil seal and 33 mm boots are supported for the original 1981 CB400T fork, not every replacement front end.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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