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1980 Honda CB650C Custom Tank Caps & Petcocks

The 1980 CB650C tank-related selection separates fuel control, filler-cap sealing and front tank support. Check the tank actually fitted before ordering any of them. A changed tank can alter the petcock thread, filler opening or mounting-rubber requirements even when the frame is still original.

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Currently viewing Gas Tanks, Caps, Petcocks & Parts

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Honda CB750 CB650 fuel petcock 16950-425-025

1979-80 Honda CB750 / CB650 Fuel Petcock ~ Replaces 16950-425-025

$44.95 USD
20-8040
Replace your 1979-80 DOHC CB fuel petcock with this Fuel Petcock, replacing OEM #16950-425-025 with M16 x 1.5 threads. Please verify the thread size...
Honda CB750C CB750SC CB900C CB1000C gas fuel tank cap 17620-460-067

Honda CB Gas / Fuel Tank Filler Cap ~ Replaces 17620-460-067

$44.95 USD
65-6508
Replace your gas tank cap with this OEM Type Gas/Fuel Tank Cap with gasket and 2 keys, replacing OEM #17620-460-067.Key Features• OEM-type gas /...
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 CB650C Custom · Tank Caps & Petcocks Buying guide

Check the offered valve before completing the tank order

The petcock is specified by its connection and replacement reference; the cap comes with its own package of parts. Match each to the fitted tank and choose the front rubber by its existing shape and reference.

Parts to consider

1979-80 Honda CB750 / CB650 Fuel Petcock ~ Replaces 16950-425-025 M16 fuel petcockPetcock with M16 × 1.5 tank threads; reference 16950-425-025.View part Honda CB Gas / Fuel Tank Filler Cap ~ Replaces 17620-460-067 Fuel tank cap and keysOEM-type cap supplied with a gasket and two keys; reference 17620-460-067.View part Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000 Front tank rubber cushionAftermarket cushion replacing reference 17611-KE8-000. Sold individually.View part

Identify the replacement valve

The offered petcock is part 20-8040, replacing reference 16950-425-025. Its package supplies one valve with the stated M16 × 1.5 tank connection.

Check the cap package before ordering additional parts

Cap 65-6508 replaces reference 17620-460-067 and includes a gasket and two keys. The written inventory does not establish what extra mounting hardware is supplied; confirm any additional pieces needed for the repair.

Tank Caps & Petcocks questions

What else matters once the petcock thread matches?

The valve’s buying guidance calls for checking the sealing arrangement, outlet direction, hose size and lever clearance as well as thread diameter and pitch. Compare these with the fitted tank and valve before ordering, especially when their origin is uncertain.

Can the cap be supplied to match my ignition key?

The listing includes two keys but does not offer a matching-key option or promise compatibility with an existing ignition key. Confirm that requirement before choosing the cap if keeping the same key matters.

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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