I'm trying to find the Peugeot part number for the brake light switch on a Peugeot J9 light commercial vehicle. It's a small hexagon-bodied item with M10x1.5 thread and two spade lug connectors for the wiring. It fits into the end of the master cylinder. Usual UK Pug parts sources have drawn a blank. I expect that it was a fairly common part on French cars at one time about 20 years ago!