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1971 Honda CB350K3 Engine Gaskets & Seals

Trace the leak before choosing seals for your 1971 CB350K3. A shift-shaft seal is a targeted repair part, while an Athena overhaul gasket set covers a broader engine job. Check which joints will be opened and which separate seals are needed.

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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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1971 Honda CB350K3 · Engine Gaskets & Seals Buying guide

Choose sealing parts for the joint being opened

Use the leaking location and planned disassembly to decide between a single shaft seal and an overhaul set. A gasket assortment should be checked against the repair, rather than treated as an inventory of every engine seal.

Parts to consider

Honda CB Athena Overhaul Gasket Set Athena Overhaul Gasket SetEngine overhaul gasket set with a stated 1970–72 CB350K application.View part Honda CB Shift Shaft Seal ~ 14 x 28 x 7 ~ Replaces 91206-286-013 Shift Shaft Seal14 × 28 × 7 mm seal, made in Japan, for the gearshift shaft.View part

A shaft seal is a specific purchase

The shift-shaft seal is a Japanese-made 14 × 28 × 7 mm replacement. Use it for the corresponding shaft location rather than as a general engine seal. Inspect the surrounding components as part of diagnosis so a worn shaft or damaged housing is not overlooked.

Order for the planned disassembly

The Athena set has a stated 1970–72 CB350K application. Its description does not provide a complete item-by-item contents list, so confirm any essential individual gasket before ordering. Keep separately needed shaft seals and centrifugal-filter parts on the repair checklist.

Buying questions

Should I buy the gasket set for a shift-shaft leak?

If the repair is limited to the shift-shaft seal, choose that specific seal after checking the leak source and dimensions. An overhaul gasket set is a broader purchase for work involving multiple engine joints.

Does the overhaul set include every oil seal?

A complete oil-seal inventory is not specified for this set. Confirm any required shaft seal separately before ordering, particularly if your work involves the gearshift shaft or another rotating or sliding shaft.

How do I order for an engine already dismantled?

Identify each joint and seal location using the CB350 parts diagram, then compare those needs with the gasket set. Keep reusable hardware separate from the list of gaskets and seals that the repair requires.

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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