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  • Honda CB1100 / CB1000 / CB900 / CB750 Crankshaft Seal ~ 25 x 42 x 8 ~ Replaces 91201-425-003
Honda CB1100 CB1000 CB900 CB750 crankshaft seal 25 x 42 x 8 91201-425-003
Crankshaft oil seal, SKU 73-0966: product photo and 1980 Honda CB750K (A) Crankshaft / Piston fiche with the part location highlighted. Example diagram; check listing for fitment.
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Honda CB1100 CB1000 CB900 CB750 crankshaft seal 25 x 42 x 8 91201-425-003

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Load image into Gallery viewer, Honda CB1100 CB1000 CB900 CB750 crankshaft seal 25 x 42 x 8 91201-425-003
Load image into Gallery viewer, Crankshaft oil seal, SKU 73-0966: product photo and 1980 Honda CB750K (A) Crankshaft / Piston fiche with the part location highlighted. Example diagram; check listing for fitment.
5.0 ( 1 review)

Honda CB1100 / CB1000 / CB900 / CB750 Crankshaft Seal ~ 25 x 42 x 8 ~ Replaces 91201-425-003

73-0966
$10.50 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
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1 product reviews

Honda CB1100 / CB1000 / CB900 / CB750 Crankshaft Seal ~ 25 x 42 x 8 ~ Replaces 91201-425-003

Honda CB1100 / CB1000 / CB900 / CB750 Crankshaft Seal ~ 25 x 42 x 8 ~ Replaces 91201-425-003
$10.50 USD
Description

Replace your crankshaft seal with this Crankshaft Seal, 25 x 42 x 8, replacing OEM #91201-425-003. High-quality, made in Japan.

Key Features
• Crankshaft Seal
• 25 x 42 x 8
• Replaces OEM #91201-425-003
• Made in Japan
• Honda part name: Oil Seal (25X42X8)

Fitment / Compatibility

• Honda CB750K (1979‑82)
• CB750L (1979) Limited
• CB750F (1979‑82) Supersport
• CB750C (1980‑82) Custom

• Honda CB750SC (1982‑83) Nighthawk

• Honda CB900C (1980‑82) Custom
• CB900F (1981‑82) Supersport
• CB1000C (1983) Custom
• CB1100F (1983) Supersport

Part Number: 73-0966

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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 CB750F Supersport 1979
Honda CB750L Limited 1979
Honda CB750K 1980
Honda CB750F 1980
Honda CB750C Custom 1980
Honda CB750K 1981
Honda CB750F 1981
Honda CB750C 1981
Honda CB750K 1982
Honda CB750F 1982
Honda CB750C 1982
Honda CB750SC Nighthawk 1982
Honda CB750SC 1983
Honda CB900C Custom 1980
Honda CB900C 1981
Honda CB900F Supersport 1981
Honda CB900C 1982
Honda CB900F 1982
Honda CB1000C Custom 1983
Honda CB1100F Supersport 1983

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

What are the dimensions and Honda reference for this crankshaft seal?

The Japanese-made seal measures 25 x 42 x 8mm and replaces Honda OEM 91201-425-003. Do not substitute the 30 x 42 x 8mm crank seal used at a different location or on different engines.

How many 91201-425-003 seals are included and required?

One seal is included, and one is required at this crankshaft seal location on one compatible engine.

What installation checks help prevent a new oil seal from leaking?

Identify and correct shaft play, wear grooves, crankcase pressure or a blocked breather before installation. Protect the seal lip from splines and sharp edges, lubricate it as specified and install it squarely with the sealing lip facing the direction shown in the Honda service procedure.

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