This item will fit either the polished MMM13550 or MMM13560 steering wheel boss it will also fit the STA037c Adaptor or black STA014 boss.
On cars built after June 1997 this is a working horn push and requires either the STA037C adaptor or MMM13550 or MMM13560 Steering Wheel Boss to be able to fit and work.
When fitted to cars pre June 1997 this is non working horn push and requires the STA014 Boss.
Fits Mota Lita steering wheel bosses but will not fit any of the Brooklands Steering Wheels, they have there own horn push.
If in doubt, please contact us before ordering.