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Honda CB750 CB450 CB350 CL350K3 gas cap rubber seal 17525-300-000
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB750 CB450 CB350 CL350K3 gas cap rubber seal 17525-300-000

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Honda CB Gas Cap Rubber Seal ~ Replaces 17525-300-000

20-0038
$5.95 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 1,329 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts
Honda CB Gas Cap Rubber Seal ~ Replaces 17525-300-000
$5.95 USD
Description

Replace your early Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17525-300-000. Fits the earliest CB750K, CB450K/CL450K, and CB350K/CL350K/SL350K.

Key Features
• Gas cap rubber seal
• Replaces OEM #17525-300-000

Fitment / Compatibility

• Honda CB750K (1969‑71)

• Honda CB450K (1970‑74)
• CL450K (1970‑72 / 1974)

• Honda CB350K (1971)
• CL350K (1971)
• SL350K (1970‑71)

Part Number: 20-0038

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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 CB450K3 1970
Honda CB450K4 1971
Honda CB450K5 1972
Honda CB450K6 1973
Honda CB450K7 1974
Honda CL450K3 1970
Honda CL450K4 1971
Honda CL450K5 1972
Honda CL450K6 1974
Honda CB350K3 1971
Honda CL350K3 1971
Honda SL350K0 Scrambler 1970
Honda SL350K1 Scrambler 1971

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

Which Honda gas-cap seal does this replace?

One rubber fuel-cap seal is included and cross-references Honda OEM 17525-300-000 for the listed early CB750K, CB450 and CB350 fuel caps.

What should be inspected when replacing a fuel-cap seal?

Clean the cap and filler-neck sealing surfaces and inspect the hinge, latch and vent passages. A new seal cannot correct a bent cap, damaged neck or blocked vent.

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