Quote Originally Posted by criddy View Post
I would need a MS M, PC 10 and XTM 9 DI 25 T right? I am unsure if this is the right transducer though because according to the humminbird site the 587ci DI is not listed under units it will work on.
Those are the right parts criddy. The 587ci HD DI was left off the listing for that transducer.