My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

Currently viewing Fasteners & Hardware

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

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...

1967 Honda CB160 · Fasteners & Hardware Buying guide

Use the assembly reference to identify the replacement nut

Honda 90231-KCS-651 replaces several earlier locknut references. Use the replacement-number relationship alongside the assembly location; a nominal 16 mm description alone is not enough to select other similar-looking hardware.

Compare references before comparing appearances

The supported earlier references include 90231-200-010, 90231-028-000, 90231-030-000 and 90231-KCS-920. Compare the number in your parts information with the complete replacement list on the product page. If the engine assembly has changed, identify that assembly before applying the original motorcycle’s parts information.

Separate purchasing details from service specifications

Sold each describes the package quantity, not the total needed for every motorcycle. Determine the repair quantity from the verified assembly. Use the applicable service manual for the installation method and tightening specification; the 16 mm product description is not a torque value or a tool-size instruction.

Fasteners & Hardware questions

Is this a genuine Honda replacement?

Yes. This is a genuine Honda locknut with current reference 90231-KCS-651 and a stated 1966–69 CB160 application. Confirm the assembly position using the parts information for the engine actually fitted.

Does ordering one item supply a single nut or a hardware set?

One item supplies one locknut. It is sold individually, so establish the required repair quantity before ordering rather than treating the clutch and oil-filter-rotor description as the contents of a multi-part set.

My parts book shows 90231-200-010. Is that an earlier reference?

Yes. 90231-200-010 is among the supported earlier numbers replaced by 90231-KCS-651, along with 90231-028-000 and several others. Compare the assembly location as well, especially if the engine or clutch components have changed.

Not sure which part you need?

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

Ask a fitment question

Your cart

×