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1980 Honda CB400TA Hawk Tank Fittings

Fuel-tank work on the 1980 Hawk can involve the tap, filler-cap seal or mounting cushions. Check which part is worn and confirm the tank is still the original type. A replacement tank can change its thread, cap arrangement and mounting requirements.

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Currently viewing Gas Tanks, Caps, Petcocks & Parts

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Honda CB750 CB650 CB400 gas cap rubber seal 17632-422-000

Honda CB750 / CB650 / CB400 Gas Cap Rubber Seal ~ Replaces 17632-422-000

$7.95 USD
20-0096
Replace your DOHC Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17632-422-000.Key Features• Gas cap rubber seal• Replaces OEM...
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Honda CB400 fuel petcock 16951-385-703

1978-81 Honda CB400 Fuel Petcock ~ Replaces 16951-385-703

$15.82 USD
29-0543
Keep fuel flowing reliably to your carburetors with this Fuel Petcock, designed as a direct replacement for several original Honda fuel valve assemblies. This...
Honda CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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1980 Honda CB400TA Hawk · Tank Fittings Buying guide

Choose the fitting for the tank actually installed

The petcock uses an M16 × 1.5 connection, while the cap seal fits its own filler-cap profile. Front cushions are sold individually, with two needed to renew the original front mounting pair.

Parts to consider

1978-81 Honda CB400 Fuel Petcock ~ Replaces 16951-385-703 Threaded fuel petcockM16 × 1.5 tank connection for the listed CB400T application. Compare outlet direction and tank clearance.View part Honda CB750 / CB650 / CB400 Gas Cap Rubber Seal ~ Replaces 17632-422-000 Fuel-cap rubber sealReplacement seal referencing 17632-422-000 for the 1980 CB400T fuel cap.View part Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000 Front tank cushionAftermarket rubber sold individually. Order two when replacing both original front tank cushions.View part

Check more than the thread on a changed tank

The replacement petcock specifies M16 × 1.5. Compare the outlet direction and available clearance around the tank and carburetors before ordering, especially on a custom tank. Confirm the fuel hose can follow its intended route without relying on the motorcycle’s original model label alone.

Separate fuel sealing from tank support

The cap seal replaces reference 17632-422-000. The front cushions support the tank at the frame and are aftermarket replacements for reference 17611-KE8-000. They are sold each; order two to renew both front supports, and compare the mounting shape if the tank has been changed.

Buying questions

Will the petcock fit an aftermarket tank?

Check for an M16 × 1.5 connection, then compare outlet direction and clearance. A changed tank may use a different fitting even when it is installed on a 1980 Hawk.

Are the two front tank cushions supplied together?

The featured aftermarket cushion is sold individually. The original front mounting uses two, so order two units when replacing the full front pair.

Can I use the cap seal with a replacement filler cap?

Compare the new cap’s specified seal and its actual profile. The featured seal references 17632-422-000 for the original 1980 application; a changed cap can require a different rubber seal.

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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