A head scratcher.......how many different wires at the opposite end we can't see?
Almost looks like a high voltage "igniter" coil with the single end wire showing......but seems too big for that. Maybe a starter cap for an air conditioning compressor, but would likely have one wire at the other end similar to the one we see minimum. Most A/C compressor starter caps are single ended with at least two spade terminals and ground/strap metal body for easy replacement. Last guess .....complimentary Thor factory sticky bomb for when warranty runs out?