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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
1959 Honda CB92 Motorcycle Parts 1960 Honda CB92 Motorcycle Parts 1961 Honda CB92 Motorcycle Parts 1962 Honda CB92 Motorcycle Parts 1966 Honda CB160 Motorcycle Parts 1967 Honda CB160 Motorcycle Parts 1968 Honda CB160 Motorcycle Parts 1968 Honda CB350K0 Motorcycle Parts 1969 Honda CB160 Motorcycle Parts 1969 Honda CB175K3 Motorcycle Parts 1969 Honda CB350K1 Motorcycle Parts 1969 Honda CB750K Motorcycle Parts 1970 Honda CB175K4 Motorcycle Parts 1970 Honda CB350K2 Motorcycle Parts 1970 Honda CB750K Motorcycle Parts 1971 Honda CB175K1 Motorcycle Parts 1971 Honda CB350K3 Motorcycle Parts 1971 Honda CB750K Motorcycle Parts 1972 Honda CB175K6 Motorcycle Parts 1972 Honda CB350K4 Motorcycle Parts 1972 Honda CB750K Motorcycle Parts 1973 Honda CB175K7 Motorcycle Parts 1973 Honda CB350G Motorcycle Parts 1973 Honda CB750K Motorcycle Parts 1974 Honda CB360G Motorcycle Parts 1974 Honda CB360K0 Motorcycle Parts 1974 Honda CB750K Motorcycle Parts 1975 Honda CB360T Motorcycle Parts 1975 Honda CB400F Motorcycle Parts 1975 Honda CB750F Motorcycle Parts 1975 Honda CB750K Motorcycle Parts 1976 Honda CB360T Motorcycle Parts 1976 Honda CB400F Motorcycle Parts 1976 Honda CB750F Motorcycle Parts 1976 Honda CB750K Motorcycle Parts 1977 Honda CB400F Motorcycle Parts 1977 Honda CB750F Motorcycle Parts 1977 Honda CB750K Motorcycle Parts 1978 Honda CB750F Motorcycle Parts 1978 Honda CB750K Motorcycle Parts 1979 Honda CB750F Motorcycle Parts 1979 Honda CB750K Motorcycle Parts 1979 Honda CB750L Motorcycle Parts 1980 Honda CB750C Motorcycle Parts 1980 Honda CB750F Motorcycle Parts 1980 Honda CB750K Motorcycle Parts 1980 Honda CB900C Motorcycle Parts 1981 Honda CB750C Motorcycle Parts 1981 Honda CB750F Motorcycle Parts 1981 Honda CB750K Motorcycle Parts 1981 Honda CB900C Motorcycle Parts 1981 Honda CB900F Motorcycle Parts 1982 Honda CB750C Motorcycle Parts 1982 Honda CB750F Motorcycle Parts 1982 Honda CB750K Motorcycle Parts 1982 Honda CB750SC Motorcycle Parts 1982 Honda CB900C Motorcycle Parts 1982 Honda CB900F Motorcycle Parts 1983 Honda CB1000C Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts 1983 Honda CB750SC Motorcycle Parts 1984 Honda CB125S Motorcycle Parts 1985 Honda CB125S Motorcycle Parts Honda CB Fasteners, Bolts, Screws & Hardware Honda CB Fork Tubes, Springs, Seals & Boots Honda CB Suspension & Wheel Parts Honda CB Tools, Hardware & Accessories Honda CB1000 Motorcycle Parts by Model & Year Honda CB125 Motorcycle Parts by Model & Year Honda CB125S Motorcycle Parts (1973–1985) Honda CB160 Motorcycle Parts (1966–1969) Honda CB175K Motorcycle Parts (1969–1973) Honda CB350 Motorcycle Parts by Model & Year Honda CB350K Motorcycle Parts (1968–1972) Honda CB360 Motorcycle Parts by Model & Year Honda CB360T Motorcycle Parts (1975–1976) Honda CB400 Motorcycle Parts by Model & Year Honda CB400F Motorcycle Parts (1975–1977) Honda CB750 DOHC Parts (1979–1982) Honda CB750 Motorcycle Parts by Model & Year Honda CB750 SOHC Parts (1969–1978) Honda CB750C Custom Motorcycle Parts (1980–1982) Honda CB750F Motorcycle Parts (1975–1982) Honda CB750K Motorcycle Parts (1969–1982) Honda CB750SC Nighthawk Motorcycle Parts (1982–1986) Honda CB900 Motorcycle Parts by Model & Year Honda CB900C Custom Motorcycle Parts (1980–1982) Honda CB900F Supersport Motorcycle Parts (1981–1982) Honda CB92 Motorcycle Parts (1959–1963) Series 10: CB72-CB250 (59-85) Series 3: CB700-750SC (82-86) Series 4: CB900-1100 (80-83) Series 8: CB350-CB400 (72-77) Series 9: CB350-CB360 (69-75)
This genuine Honda 16mm lock nut is used on compatible Honda CB clutch basket and oil filter rotor assemblies. It is a small hardware...

1982 Honda CB900F Supersport · 16mm Lock Nut Buying guide

Use the nut reference with the exact service location

Honda reference 90231-KCS-651 and its stated supersessions identify the offered hardware. Compare the required location rather than assigning every clutch or oil-filter-rotor use in the broad description to this motorcycle.

Keep the parts reference tied to the assembly

The product description names several superseded references and applications across different motorcycles. Use the appropriate parts information to confirm the nut for the exact location being serviced. A general clutch-and-rotor description is not a reason to assume the CB900F has every listed arrangement.

Check the mating parts and locking method

A replacement nut cannot restore a damaged shaft thread or an incorrect assembly stack. Confirm the exact location in the parts information, inspect the mating components and use the Honda service procedure for holding, tightening and locking. The broad clutch-and-filter-rotor product description spans other Honda designs.

Buying questions

Can I use the broad oil-filter-rotor description to identify a CB900F filter nut?

No. The original F has a paper-element oil filter in a center-bolt housing. Confirm this nut’s required location and reference in the fitted clutch assembly; do not transfer centrifugal-filter-rotor uses from other motorcycles to this one.

Will a new lock nut fix damaged mating threads?

No. Inspect the shaft threads, nut engagement and associated locking parts before assembly. A damaged thread or incorrect stack of parts needs correction first. Follow the Honda holding and tightening procedure instead of using extra force to make the nut secure.

What changes after an engine or clutch swap?

Identify the actual assembly and check its parts information for the required nut and locking method. The original CB900F year and the general 16mm description cannot verify hardware in a different clutch or engine.

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