LUCAS Brake Light Switch BSA C15 C15SS B40 B40SS 31827

LUCAS Brake Light Switch   BSA C15 & B40   OEM Ref. # 31827   NOS  New Old Stock.  SB84/A

BSA   C15 

BSA  B40 

Please check your parts catalogue to ensure this part will fit your year.  May also fit other British models.