<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bbbentley</div><div class="ubbcode-body">Research tells me there are 3 possible senders, wts125 (1/8npt), wts375 (3/8), wts500 (1/2). </div></div>
It will all come down to where you want to put the sender and do you have the adapters for other places to put it. I have mine in the head on the passenger side and works well. Mine is WTS 500 with no adapter.
These are what you need for the Sun Water temp gauge...
Dave
67 Nova Boy