Lucas Type Short Knob Lighting Switch 31340 U39 Triumph BSA Norton Matchless AJS Also fits Triumph 500 Twins

Also fits Triumph 500 Twins (Daytona

etc 97-3635 / H3635 1969-1974 Triumph TR6

Interstate

TR6RV & TR6CV) from 1963-1972 with a thread pitch of 26 on your crankshaft threads

Mounting Washers

Lucas Type Short Knob Lighting Switch 31340 U39 Triumph BSA Norton Matchless AJS Also fits Triumph 500 TwinsBrand Spankin' New Top Quality Lucas Type Head Light U39 "Short Knob" Lighting Switch. We are absolutely Blown away by the Quality of this New Reproduction Part! Looks almost Identical to the Original types! Keep in mind that this Switch is far more Affordable then an Original Lucas Switch but without Sacrificing Quality! Your saving upwards of $100+! Measures 2" In Diameter & Features 3 positions; Off, Low & High. Used on many British bikes that