Rear stoplight switches tend to receive more than there fair share of road grime, rock salt spray, and all those types of bike destroying materials, that you would not dream of putting your classic Honda through now! Sadly, when your bike was new, that is exactly what happened, so what a relief that Honda, for now, still produce these parts to allow you to finish off your restoration to perfection! To access all current Honda produced 'classic parts' check the online catalogue for your model, don't leave it to long though!
Note: this part is superseded by 35350KJ9405.