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  • Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010
Honda CB750 CB550 CB400 filler cap 17620-399-010
Honda CB750 CB550 CB400 filler cap 17620-399-010
Honda CB750 CB550 CB400 filler cap 17620-399-010
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Honda CB750 CB550 CB400 filler cap 17620-399-010

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5.0 ( 1 review)

Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010

73-0079
$69.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,347 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts

1 product reviews

Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010

Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010
$69.95 USD
Description

Replace your gas tank cap with this OEM Style Gas / Fuel Tank Cap with rubber gasket already installed, replacing OEM #17620-399-010.

Note: does not include a chain attached to this cap.

Key Features
• OEM-style gas / fuel tank filler cap
• Rubber gasket pre-installed
• Replaces OEM #17620-399-010
• Honda part name: Cap, Fuel Tank
• Interchangeable with Honda 17620-377-720

Fitment / Compatibility

• Honda CB750K (1977‑78)
• CB750F (1977‑78) Supersport
• CB750A (1977‑78) Hondamatic

• Honda CB550K (1977‑78)
• CB550F (1977) Supersport

• Honda CB400A (1978)
• CB400TI (1978‑79)
• CB400TII (1978‑79)

• Honda CB400F (1977) Supersport

Part Number: 73-0079

Read More
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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K 1977
Honda CB750F 1977
Honda CB750A 1977
Honda CB750K 1978
Honda CB750F 1978
Honda CB750A 1978
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550F3 1977
Honda CB400F 1977
Honda CB400A 1978
Honda CB400TI Hawk 1978
Honda CB400TIZ Hawk 1979
Honda CB400TII Hawk 1978
Honda CB400TIIZ Hawk 1979

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

See full shipping details

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

Start your return below. Wait for our instructions before mailing a part back.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What is included with Honda fuel cap 17620-399-010?

One filler cap cross-referenced to Honda OEM 17620-399-010 is included with its rubber sealing gasket already installed. A retaining chain is not included.

What should be checked before fitting the replacement fuel cap?

Compare the hinge, latch and sealing surface with the original tank, and clean rust or old gasket material from the filler neck without allowing debris into the fuel.

What should be tested after installing the fuel cap?

Confirm the latch closes securely, the gasket seals evenly and the tank vents as designed. Investigate fuel leakage or fuel-starvation symptoms before riding.

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