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Honda CB900 CB750 cylinder base gasket 12191-425-306
Parts fiche reference for SKU 18-7052
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB900 CB750 cylinder base gasket 12191-425-306

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Load image into Gallery viewer, Honda CB900 CB750 cylinder base gasket 12191-425-306
Load image into Gallery viewer, Parts fiche reference for SKU 18-7052

1979-83 Honda CB900 / CB750 Cylinder Base Gasket ~ Replaces Honda OEM 12191-425-306

18-7052
$16.38 USD

Sold individually

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
1979-83 Honda CB900 / CB750 Cylinder Base Gasket ~ Replaces Honda OEM 12191-425-306
$16.38 USD
Description

Cylinder Base Gasket ~ Replaces Honda OEM 12191-425-306 for the Honda CB models listed below. Use this part for repair, restoration, or replacement work where the listed fitment and OEM reference match your bike.

Key Features

  • Aftermarket replacement part
  • Replaces Honda OEM reference: 12191-425-306
  • Sold as: Each

Fitment / Compatibility

  • Honda CB750K (1979) Standard
  • Honda CB750K (1980)
  • Honda CB750K (1981)
  • Honda CB750K (1982)
  • Honda CB750F (1979) Supersport
  • Honda CB750F (1980)
  • Honda CB750F (1981)
  • Honda CB750F (1982)
  • Honda CB750L (1979) Limited
  • Honda CB750C (1980) Custom
  • Honda CB750C (1981)
  • Honda CB750C (1982)
  • Honda CB750SC (1982) Nighthawk
  • Honda CB750SC (1983)
  • Honda CB900C (1980) Custom
  • Honda CB900C (1981)
  • Honda CB900C (1982)
  • Honda CB900F (1981) Supersport
  • Honda CB900F (1982)
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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K Standard 1979
Honda CB750K 1980
Honda CB750K 1981
Honda CB750K 1982
Honda CB750F Supersport 1979
Honda CB750F 1980
Honda CB750F 1981
Honda CB750F 1982
Honda CB750L Limited 1979
Honda CB750C Custom 1980
Honda CB750C 1981
Honda CB750C 1982
Honda CB750SC Nighthawk 1982
Honda CB750SC 1983
Honda CB900C Custom 1980
Honda CB900C 1981
Honda CB900C 1982
Honda CB900F Supersport 1981
Honda CB900F 1982

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.

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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 OEM cylinder-base gasket does this replace?

It replaces Honda OEM 12191-425-306 for the compatible 1979-1983 DOHC CB750 and CB900 applications shown.

How many cylinder-base gaskets are required per engine?

One base gasket is included and one is used beneath the cylinder block on one engine.

Can the cylinder-base gasket be replaced from outside the engine?

No. Replacing it requires top-end disassembly and cylinder-block removal. Check the cylinder base, studs, dowels and sealing surfaces before reassembly.

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