Anyone know what the thread size is on the rear brake Light Switch ? Need to replace one.

The rear brake light switch has am M10 x 1.0mm thread. It is a banjo style fitting and the thread length is 19mm.
Ducati part number is 0796.54.114.
guzzino.com has some for US$29.95
The standard part has spade connections, but some aftermarket parts come with wires pre-terminated or moulded into the switch with a length of wire and bullet style connectors at the end of the wire.

Dave

Thanks Dave