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1981 Honda CB650 Fork Oil & Dust Seals

Check the actual fork tubes before ordering seals for your 1981 Honda CB650. The selected oil seals have a defined 35 × 48 × 10.5/11 mm size, and the dust seals are a separate pair. A swapped front end needs its own measurements.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Fork Tubes, Springs, Seals & Boots

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Honda CB750 CB650 CB550 CB500 fork seals

Honda CB750 / CB650 / CB550 / CB500 Fork Seals

$19.95 USD
27-1007
Replace your fork seals with this Fork Seal Set, 35 x 48 x 10.5 / 11mm. High quality, made in Japan. Key Features• Fork...
Honda CB750 CB650 SL350K2 fork dust seal set

Honda CB750 / CB650 / SL350K2 Fork Dust Seal Set

$24.95 USD
27-1049
Replace your DOHC CB750 or CB650 fork dust seals with this Fork Dust Seal Set of 2. OEM-quality parts made in Japan.Key Features• Fork...
Honda CB750 CB650 CB550 front fork damper valve set

Honda CB750 / CB650 / CB550 Front Fork Damper Valve Set

$79.95 USD
27-1886
Upgrade your 35mm rod-style front forks to perform like modern cartridge forks with this Front Fork Damper Valve Set of 2. These tunable valves...
New
Universal motorcycle headlight reflector rubber base 33743-425-600

Universal Motorcycle Headlight Reflector Rubber Base ~ Replaces 33743-425-600

$16.95 USD
99-4979
Upgrade or restore your Honda motorcycle’s headlight assembly with this Headlight Reflector Rubber Base — precision‑designed to replace OEM #33743‑425‑600. This rubber base provides...
New
Honda CB750 CB650 headlight stay headlight reflector bolt 90120-425-000

1979-83 Honda CB750 / CB650 Headlight Stay / Headlight Reflector Bolt ~ Replaces 90120-425-000

$8.95 USD
99-4975
Replacement headlight stay bolt for restoring your CB750's headlight assembly back to proper condition. This is the bolt that fastens through the headlight ears,...
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1981 Honda CB650 · Fork Oil & Dust Seals Buying guide

Compare fork-seal size and protective covers

Oil seals and dust seals occupy different positions in the fork assembly. Inspect the tubes and existing seal markings, then decide which pieces the service requires before dismantling.

Parts to consider

Honda CB750 / CB650 / CB550 / CB500 Fork Seals Fork oil-seal setJapanese-made fork seals sized 35 × 48 × 10.5/11 mm.View part Honda CB750 / CB650 / SL350K2 Fork Dust Seal Set Fork dust-seal pairTwo fork dust seals per pack; made in Japan.View part

Use the complete seal dimension

The selected oil-seal size is 35 × 48 × 10.5/11 mm. Compare all dimensions with the removed seal and identify the actual fork assembly. The motorcycle’s year is useful only when the fitted front end matches that application.

Inspect dust seals during the job

The Japanese-made dust-seal package contains two pieces. Check these protective covers alongside the oil seals and tube surfaces. Use the CB650 service manual or the fitted fork manufacturer’s instructions for inspection, fluid and assembly specifications.

Ordering questions

Does 10.5/11 mm mean I can choose either seal height?

The listing gives the combined size 35 × 48 × 10.5/11 mm but does not explain the slash or describe alternative seals in the pack. Obtain a dimensioned specification before treating either figure as a selectable substitute for a different fork.

Will replacing only the dust seals address an oil leak?

The dust-seal listing describes keeping dirt away from the fork tubes and seals; the oil-seal listing addresses oil loss at the tubes. Identify the leaking position and inspect the fork before ordering. The separate dust-seal pair should not be treated as a replacement for the oil seals.

Can a 35 mm tube alone prove that these seals fit?

Check the complete seal dimensions and fork application as well. The selected oil seal is 35 × 48 × 10.5/11 mm, so tube diameter is only part of the comparison.

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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