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  • 1969-74 Honda CB750K / CB550K / CB500K Fuel Petcock ~ Replaces 16950-300-020
Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Fuel petcock assembly, SKU 20-8039: product photo and 1974 Honda CB750K4 (A) Fuel tank / fuel petcock fiche with the part location highlighted. Example diagram; check listing for fitment.
Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Honda CB750K CB550K CB500K fuel petcock 16950-300-020
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB750K CB550K CB500K fuel petcock 16950-300-020

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Load image into Gallery viewer, Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Load image into Gallery viewer, Fuel petcock assembly, SKU 20-8039: product photo and 1974 Honda CB750K4 (A) Fuel tank / fuel petcock fiche with the part location highlighted. Example diagram; check listing for fitment.
Load image into Gallery viewer, Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Load image into Gallery viewer, Honda CB750K CB550K CB500K fuel petcock 16950-300-020
Load image into Gallery viewer, Honda CB750K CB550K CB500K fuel petcock 16950-300-020
4.7 ( 7 reviews)

1969-74 Honda CB750K / CB550K / CB500K Fuel Petcock ~ Replaces 16950-300-020

20-8039
$44.95 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 1,330 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts

7 product reviews

1969-74 Honda CB750K / CB550K / CB500K Fuel Petcock ~ Replaces 16950-300-020

1969-74 Honda CB750K / CB550K / CB500K Fuel Petcock ~ Replaces 16950-300-020
$44.95 USD
Description

Replace your early CB750K fuel petcock with this Honda CB750 Fuel Petcock, replacing OEM #16950-300-020. Includes internal gaskets, strainers, and other internals.

It's a good idea to replace the internal screws and washers (#49-0223) before installing this petcock.

Key Features
• Fuel petcock
• Replaces OEM #16950-300-020
• Includes internal gaskets and strainers
• Pairs with screw/washer set #49-0223

Fitment / Compatibility

• Honda CB750K (1969‑74)

Part Number: 20-8039

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

Make Model Year
Honda CB750K Standard 1969
Honda CB750K 1970
Honda CB750K 1971
Honda CB750K 1972
Honda CB750K 1973
Honda CB750K 1974
Honda CB550K0 1974
Honda CB500K0 1971
Honda CB500K1 1972
Honda CB500K2 1973

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.

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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 the fuel petcock?

The petcock includes its internal gaskets, strainers, and other internal components.

Are the petcock screw and washer set included?

No. The petcock includes its internal gaskets and strainers, but screw-and-washer set #49-0223 is sold separately. Inspect the original hardware and replace it if it is worn, damaged, or missing.

Should any existing hardware be inspected during installation?

Yes. Inspect the tank-side screws and sealing washers and replace them if worn or damaged before installing the petcock.

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