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1983 Honda CB450SC Nighthawk Fork Oil Seals & Dust-Boot Planning

The 1983 CB450SC Nighthawk fork selection has separate oil-seal and dust-boot packages. The seals carry a three-dimension specification; the boots identify the 33 mm arrangement and Honda reference. Inspect the fitted fork and exposed sealing area to decide which matched pieces should be included.

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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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1983 Honda CB450SC Nighthawk · Fork Tubes, Springs, Seals & Boots Buying guide

Choose oil seals and protective boots from separate checks

The oil-seal set contains two 33 × 46 × 11 mm seals. The 91254-413-881 dust-boot set contains two boots for the compatible 33 mm fork arrangement. Each package covers the corresponding two fork legs.

Parts to consider

Honda CB450 / CB400 / CB360 Fork Seals Two fork oil seals, Japan-madeTwo seals measuring 33 × 46 × 11 mm, made in Japan by an OEM supplier; confirm the fitted fork application.View part Honda CB Fork Dust Boot Set ~ Replaces 91254-413-881 Two 33 mm seal-area dust bootsTwo 91254-413-881 boots for the left and right compatible fork legs; inspect the exposed seal area before choosing them.View part

Use the full seal dimensions for a changed fork

A 33 mm tube-size description does not replace the oil seal’s complete 33 × 46 × 11 mm specification. If a different fork has been installed, identify its own seal seat and required profile before selecting the package listed for the original compatible arrangement.

Let the condition beneath the boots guide the order

The dust-boot FAQ asks for inspection of fork tubes, oil seals, retaining clips and seal seats, with leakage addressed before new boots are fitted. Those checks distinguish a protective-boot refresh from work requiring the separately supplied oil seals.

Common questions

Does one package of each product cover both compatible fork legs?

Yes. The oil-seal FAQ specifies two seals, and the dust-boot FAQ specifies two boots for the left and right compatible legs. Order the matched package needed for each task; replacing boots does not automatically establish that new oil seals are required.

What should I compare when a replacement fork also has 33 mm tubes?

Compare the oil seal’s full 33 × 46 × 11 mm requirement and the dust boot’s 91254-413-881 application separately. The shared 33 mm description does not confirm every replacement fork’s seal seat, profile or protective-boot arrangement.

Should a dust-boot order be the first response to oil around the fork seals?

Inspect the tubes, oil seals, retaining clips and seal seats first, as the boot source directs. Address leakage before fitting new protective boots. That assessment determines whether the order needs boots, the separate dimensioned oil seals or further fork service.

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