Genuine Honda - Oil Filter / Clutch Basket 16mm Lock Nut- 90231-KCS-651

Genuine Honda 16mm lock nut. This nut holds the oil filter rotor on many of the Honda twins such as the CB350/450K. It also was used to on the clutch basket for some of the four cylinder models such as the CB400F and CB750. Check your model to see where it was used.

A special tool is necessary to remove this lock nut. On the CB400F it is accessible, so it's easier to remove without a special tool, but on a CB450 the special tool is necessary.

Honda part number: 90231-KCS-651

Fits Honda:

CB92 Benly Super Sport 125 - 1959-1962
CB125S - 1984-1985
CL125A Scrambler - 1967-1969
CA95 Benly Touring 150 - 1959-1966
CA160 Touring - 1966-1969
CB160 Sport - 1965-1969
CL160/D Scrambler - 1966-1968
CA175 Touring - 1968-1970
CB175K - 1969-1973
CL175K - 1968-1973
CB350G - 1973
CB350K - 1968-1973
CL350K - 1968-1973
CB360K - 1974
CB360G - 1974
CB360T - 1975-1976
CJ360T - 1976-1977
CL360K Scrambler - 1974-1975
CB400F Super Sport - 1975-1977
CB450K0 - 1965-1968
CB750C Custom - 1980-1982
CB750F Super Sport - 1975-1982
CB750K - 1969-1982
CB750L - 1979
CB750SC Nighthawk - 1982-1983
CB900C - 1980-1982
CB900F Super Sport - 1981-1982
CB1000C - 1983
GL1000 Goldwing - 1975-1976
CB1100F Super Sport - 1983