Genuine Lucas Classic 3 Position Toggle Switch 57SA 31788.
As fitted to numerous Norton, BSA & Triumph models including:-
- Triumph 350, 500cc Unit Twins (1968-74),
- Triumph 650cc Unit Twins (1968-73),
- Triumph T140, TR7 (1973-78),
- Triumph T150 (1973-),
- BSA A50, A65 Twins (1968-70),
- Norton Commando (1971-75).
OEM Ref: LU31788, 57SA, LU35710, 99-0563.