Thanks Slunnie,
As usual the ebay seller is adament that it will work on both 12v and 24v but the part numbers on the solenoid and the motor are the 12v numbers not the 24v numbers.
The winch looks like it is well built and the cable is much heavier than the cable on my Nokian PTO - so happy with it - but not happy with typical ebay sellers not listing the item correctly.
I will put provide negative or neutral feedback for the seller but keep it and use it on the 12v system on the 101 - but also if I rig it up as a portable winch I will be able to use it on my series 1 without modifying the series 1 as I want to keep it original.

