Genuine Lucas Kill Switch SS5 

Fits Triumph T20 (1964), 6T,T110,T100 Nacelle models (1959-62), T100A,3TA,5TA (1958-63), TR6C,T120TT (1966-67), T100C ET models (1966-67).

Hole diameter : 20mm
Voltage : 12V

OEM: LU31071