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1979 Honda CB750L Clutch Lock Nut

This Limited hardware route contains a genuine Honda 16mm lock nut for the stated clutch application. Identify its location in the parts diagram before ordering, especially if the engine or clutch has been changed. Compare the current nut and associated locking hardware rather than selecting by thread size alone.

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Honda CB1100 CB1000 CB900 CB750 16mm clutch oil filter rotor lock nut 90231-KCS-651

Honda CB 16mm Clutch / Oil Filter Rotor Lock Nut ~ Genuine Honda 90231-KCS-651 ~ Replaces 90231-KCS-651

$10.95 USD
99-5383
This genuine Honda 16mm lock nut is used on compatible Honda CB clutch basket and oil filter rotor assemblies. It is a small hardware...
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1979 Honda CB750L Limited · Clutch Lock Nut Buying guide

Confirm the lock-nut reference and location

The nut is sold individually under Honda reference 90231-KCS-651. Its broad product title also names other applications, so use the Limited clutch location and service information to guide the purchase.

Parts to consider

Honda CB 16mm Clutch / Oil Filter Rotor Lock Nut ~ Genuine Honda 90231-KCS-651 ~ Replaces 90231-KCS-651 Genuine Honda 16mm lock nutIndividual Honda nut, reference 90231-KCS-651; verify the clutch location.View part

Use the reference with the diagram

The product lists several superseded references, but a supersession list is not permission to use the nut at any 16mm location. Confirm the relevant clutch assembly and original reference before ordering.

Check the rest of the locking arrangement

Inspect the existing washer and nut seating surfaces while planning the repair. The nut is an individual hardware purchase. Use the service manual for the correct locking arrangement and tightening procedure, particularly with a modified clutch assembly.

Buying questions

Is the lock nut sold individually?

Yes. The product is sold as each. Confirm the number required for the identified service position rather than treating the broad application list as a multi-piece package.

Is it described as a genuine Honda part?

Yes. The product identifies genuine Honda reference 90231-KCS-651. Match that reference and its documented supersession to the specific clutch position before buying.

Will it fit a modified clutch automatically?

Identify the fitted clutch assembly first. An aftermarket or swapped component can change the correct locking hardware even when the engine remains in a 1979 Limited frame.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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