I have 2 PiranahaMAX 170 units on my 14' Lowe boat. I primarily crappie fish on Lake Sinclair in Georgia.

I think I would like to replace 1 of the units with a GPS combo unit ---- as inexpensively as possible.

I see the PrianahaMAX 17, 581i Combo and 365i Combo all use the same transducer ---- the XNT-9-20-T .

Does anyone know where/if I can purchase the head only, even a remanufactured head?

OR is this the best solution?

Thanks,

Joel