Thanks for the offer, below is a e mail from Garmin telling me the part number I need.
The Garmin partnumber for the replacement Transducer/power cable for theFF is below... 010-10435-00 200Khz, 20deg, plastic, transom/trolling motor mount, depth, temp (replacement) - FF90/120/140/160c I hope this helps you.
Don't worry if it is noat the same as your part number, if you can e mail it to me, (or PM it), I'll ask Garmin.
If it is campatable how much do you want for it?
Silent but deaf-lee