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  • 1973-85 Honda CB125 Cylinder Head Gasket ~ Replaces 12251-437-P00
Honda CB125 cylinder head gasket 12251-437-P00
Cylinder head gasket parts fiche diagram, SKU 73-1192, highlighted reference 6
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB125 cylinder head gasket 12251-437-P00

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Load image into Gallery viewer, Cylinder head gasket parts fiche diagram, SKU 73-1192, highlighted reference 6

1973-85 Honda CB125 Cylinder Head Gasket ~ Replaces 12251-437-P00

73-1192
$14.95 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
1973-85 Honda CB125 Cylinder Head Gasket ~ Replaces 12251-437-P00
$14.95 USD
Description

Restore compression and prevent leaks with this high‑quality Cylinder Head Gasket. This gasket is engineered to meet OEM specifications for a precise fit and long‑lasting seal, essential when servicing or rebuilding your Honda CB125S engine.

Key Features
• Replaces OEM# 12251-437-P00 / 12251-331-772 / 12251-437-000 / 12251-437-010 / 12251-331-771 / 12251-437-020 / 12251-331-770 / 12251-437-306
• Built to OEM specifications for a reliable seal
• Heat- and pressure-resistant material
• Our Part Number: 73‑1192
• Honda part name: Gasket, Cylinder Head

Fitment / Compatibility
• CB125S (1973–76, 1978–82, 1984–85)

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

Make Model Year
Honda CB125S0 1973
Honda CB125S1 1974
Honda CB125S2 1975
Honda CB125S3 1976
Honda CB125S5 1978
Honda CB125S 1979
Honda CB125S 1980
Honda CB125S 1981
Honda CB125S 1982
Honda CB125S 1984
Honda CB125S 1985

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

How many cylinder-head gaskets replacing Honda OEM 12251-437-P00 are included?

One cylinder-head gasket replacing Honda OEM 12251-437-P00 is included for listed 1973-1985 Honda CB125 applications; one head gasket for the single-cylinder engine.

Should sealant be added to the cylinder-head gasket?

Use sealant only where the Honda service manual explicitly specifies it. Extra sealant can alter clamping, squeeze into an oil passage or make the next service difficult.

What surface preparation helps the new gasket seal?

Remove old material without gouging aluminum, clean and dry both mating surfaces, check for warpage or damaged threads and tighten fasteners in the Honda sequence and stages. Correct the source of any distortion before assembly.

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