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1972 Honda CB350K4 Engine Gaskets, Oil Seals & Hardware

An oil trace near a shaft does not call for the same purchase as opening the cylinder head. For your 1972 CB350K4, separate the overhaul gasket set, shift shaft seal and clutch-release hardware before deciding how broad a repair to undertake.

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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...
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Honda CB360 CB350 CL350K0 CL350K2 clutch ball retainer 22860-286-000

Honda CB Clutch Ball Retainer ~ Replaces 22860-286-000

$16.95 USD
99-4850
Restore crisp clutch engagement and reliable function with this Clutch Ball Retainer — designed to replace OEM #22860‑286‑000 on a variety of classic Honda...
Honda CB350 CL350K2 CL350K3 CL350K4 SL350K1 Athena overhaul gasket set

Honda CB Athena Overhaul Gasket Set

$84.95 USD
18-0383
Rebuild your CB350, CL350, or SL350 engine with this Athena Overhaul Engine Gasket Set. Athena of Italy is an original-equipment supplier to Yamaha, Honda,...
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1972 Honda CB350K4 · Gaskets & Oil Seals Buying guide

Match the replacement to the joint you are opening

This group brings several small engine-service jobs together. Identify whether you need a paper gasket, a shaft seal or a mechanical release component, then match its location and reference.

Parts to consider

Honda CB Athena Overhaul Gasket Set Athena engine gasket setOverhaul gasket set with an explicit CB350K 1970–72 application. Compare the required sealing locations before assembly.View part Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013 Shift shaft sealJapanese-made replacement measuring 14 × 28 × 7 mm; reference 91206-286-013.View part Honda CB Clutch Ball Retainer ~ Replaces 22860-286-000 Clutch ball retainerReplacement clutch-release component with reference 22860-286-000, listed for the CB350K twin.View part

Choose sealing parts by location

The Athena set supports a broader engine overhaul, while the Japanese-made shift shaft seal addresses one shaft opening. Do not infer that a gasket set contains every oil seal. Compare the required joints with the package before dismantling further or placing a second order.

Keep release hardware on its own line

The ball retainer is a clutch-release component with reference 22860-286-000. It should be selected for the worn release mechanism, rather than added automatically to an oil-leak repair. Compare the removed component and the applicable parts diagram before replacing neighboring hardware.

Buying questions

Can I buy only the shift shaft seal?

Yes. The separate seal is specified as 14 × 28 × 7 mm and lists the CB350K 1970–72 application. Check the shaft opening and existing seal before choosing it.

Does the Athena set have a verified item-by-item contents list?

The current description identifies an overhaul gasket set but does not enumerate every seal and O-ring. Check the exact package contents against your planned job instead of assuming all sealing parts are included.

When would I need the ball retainer?

Choose it when inspection identifies the clutch-release retainer as the worn or damaged component. It is a mechanical release part, so an external oil leak alone does not establish a need to replace it.

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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