Yes, the unit has been d/c'd by the manufacturer ... I know, because I have this unit
A quick online check provided me with these places for you to consider :
https://www.amazon.com/Lowrance-000-.../dp/B00XHTW6HQ
Lowrance DSI Transdcuer Skimmer Style With Temp - Lowrance 000-10260-001 - Lowrance / Eagle Transom Mount Transducers - Lowrance/Eagle Transducers - Lowrance/Eagle Accessories - Accessories - Boatersland Marine
If you want to remove the transducer core from the "skimmer" cover and mount it on your trolling motor (like I have mine) :
then you can buy the "trolling motor adapter" shield here : Navico
You might also want to contact Brian@BBGMarine by PM ( http://www.crappie.com/crappie/member.php?u=31944 ) and ask him if he has these items in stock & maybe get them a little cheaper.