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1972 Honda CB100K2 Gaskets & Oil Seals

Identify the leaking joint before ordering sealing parts for a 1972 Honda CB100K2. The featured gearshift shaft seal measures 14 × 28 × 7. Oil-pump and filter-cap gaskets in the wider selection serve separate joints and need their own checks.

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Currently viewing Gaskets & Oil Seals & Engine Hardware

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Honda CB750 CB400 CB350 shift shaft seal 14 x 28 x 7 91206-286-013

Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013

$4.61 USD
73-0959
Replace your shift shaft seal with this Shift Shaft Seal, 14 x 28 x 7, replacing OEM #91206-286-013. High-quality, made in Japan.Key Features• Shift...
Honda CB125 CB100 oil pump gasket 15126-107-020

Honda CB125 / CB100 Oil Pump Gasket ~ Replaces 15126-107-020

$2.95 USD
73-1196
Ensure a secure, leak-free seal during your engine rebuild or maintenance with this Oil Pump Gasket. Precisely engineered to replace OEM# 15126-107-020, this gasket...
New
Honda CB100 CB125S engine oil seal kit 91201-030-0333

1970-80 Honda CB100 / CB125S Engine Oil Seal Kit

$11.21 USD
07-4648
Rebuild your CB100K or CB125S small-bore engine with this 4-piece Engine Oil Seal Kit. Covers the key oil seals for a proper refresh, saving...
New
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Honda CB100K overhaul gasket set

1970-72 Honda CB100K Overhaul Gasket Set

$29.95 USD
18-0096
Perform a complete engine overhaul on your CB100K with this Engine Overhaul Gasket Set.Key Features• Engine overhaul gasket setFitment / Compatibility• Honda CB100K (1970‑72)Part...
Honda CB125 CB100 oil filter cap gasket 15459-KT0-710

Honda CB125 / CB100 Oil Filter Cap Gasket ~ Replaces 15459-KT0-710

$5.95 USD
73-1197
Maintain proper oil system sealing with this high-quality Oil Filter Cap Gasket. This direct replacement meets OEM specifications to ensure a leak-free seal when...
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1972 Honda CB100K2 · Gaskets & Oil Seals Buying guide

Identify the shaft seal before expanding the repair order

The individual gearshift seal has a defined size and replacement reference. Keep it separate from flat engine gaskets in the repair list, and check any package already purchased before duplicating a matching seal.

Parts to consider

Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013 Gearshift Shaft SealMade-in-Japan seal measuring 14 × 28 × 7; replacement reference 91206-286-013.View part

Order from the complete seal identity

The gearshift seal is made in Japan and replaces reference 91206-286-013. Its size is 14 × 28 × 7. Retain the removed seal with its location and markings; another seal with a similar outside diameter can still be for a different shaft or cover.

Check larger packages for overlap

An overhaul gasket-set name does not establish that a particular shaft seal is included. Check the supplied contents against the joints being opened and the gearshift-seal reference before adding this item. Keep uncertain contents as a question for the supplier rather than assuming a complete sealing kit.

Ordering questions

Does a gasket-set purchase make this separate seal unnecessary?

Only if the supplied package contains the matching gearshift seal. Look for reference 91206-286-013 and size 14 × 28 × 7. The overhaul gasket set’s current description does not itemize its contents.

Can a replacement engine change which seal I need?

Yes. Identify the engine actually fitted, then compare the removed seal and its position with the stated 14 × 28 × 7 dimensions and replacement reference. A registration year cannot identify a substituted engine or its sealing parts.

Is this a genuine Honda-branded seal?

It is described as a made-in-Japan replacement using a Honda reference number. That establishes its stated origin and replacement identity, but does not establish Honda branding. Confirm the manufacturer if original branded packaging matters to your restoration.

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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