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1981 Honda CB750F 16mm Clutch Lock Nut Hardware

Use the part reference to identify the lock nut your 1981 Honda CB750F repair needs. This genuine Honda 16mm nut is sold individually and lists several earlier references. Compare the actual assembly and retaining hardware before buying a replacement.

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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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1981 Honda CB750F · Lock nut hardware Buying guide

Identify the retaining nut before choosing replacement hardware

The listed part is a lock nut referencing 90231-KCS-651, not a socket or complete fastening kit. Check the assembly’s diagram and the existing nut; broad clutch and rotor naming does not identify every fitted location.

Parts to consider

Honda CB 16mm Clutch / Oil Filter Rotor Lock Nut ~ Genuine Honda 90231-KCS-651 ~ Replaces 90231-KCS-651 Honda 16mm retaining lock nutGenuine Honda nut referencing 90231-KCS-651, sold each. Confirm its exact location in your assembly before relying on the broad clutch/rotor description.View part

Confirm location rather than choosing from the general name

The product description covers compatible clutch basket and oil-filter rotor applications across several Honda models. It asks buyers to check the motorcycle’s parts diagram or service manual. Use that location check for your assembly rather than assuming every application named belongs on the same engine.

Keep the retaining hardware and the tool separate

A replacement nut remains in the assembly after the service; a nut-removal tool is separate equipment. Inspect any washers or other retaining pieces identified in the correct diagram. The nut listing describes individual sale, so confirm other required components rather than assuming a complete retaining stack is supplied.

Common questions

Is the nut sold as a multi-piece kit?

The listing says sold each and describes one lock nut. Set your order from the parts needed for the actual assembly. Do not assume washers, additional retaining hardware or a clutch-nut tool accompany this individual product.

Does the 16mm label establish every thread dimension?

The description identifies a 16mm lock nut and lists the Honda reference, but does not enumerate a complete thread specification. Compare the part reference and fitted assembly first, and request the missing dimensions if they are needed to resolve the choice.

How many should I order for this repair?

Check the assembly diagram and count the nuts actually required by the repair. The product description says commonly one where used, rather than establishing every possible installation. Its individual selling unit lets you order the identified quantity without assuming a larger package.

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

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