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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...

1974 Honda CB360G · Oil-filter Rotor Locknut Buying guide

Identify the rotor locknut and its reference

Honda’s CB360 service manual places the 16mm locknut at the oil-filter rotor. Use that assembly location with the supplied replacement reference, especially if the engine or rotor hardware has been changed.

Keep the CB360G location clear

This nut is cataloged across multiple Honda clutch and rotor applications. For the CB360G, the relevant location is the oil-filter rotor; the clutch is retained by a snap ring. Check the engine’s actual hardware before applying the product’s broader title to a different assembly.

Match the replacement reference before ordering

The genuine Honda part is 90231-KCS-651, and its supplied replacement list includes 90231-200-010. Compare the required nut with the parts information for your engine. Assess the locking washer separately rather than assuming a single nut includes all adjacent hardware.

Buying questions

Is this a genuine Honda part or an aftermarket nut?

It is supplied as a genuine Honda part, number 90231-KCS-651. The product’s replacement list includes the earlier 90231-200-010 reference; compare that information with the rotor hardware required for your engine.

Does this nut secure the CB360G clutch center?

Honda’s CB360 manual shows the clutch retained by a 25mm snap ring. The 16mm locknut is at the oil-filter rotor. Identify the assembly before using the product’s general clutch-and-rotor title as ordering guidance.

Is the locking washer included?

The item is sold as one nut. Treat the locking washer and other adjacent hardware as separate service parts, inspecting their condition and identifying what the job requires before completing the order.

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