320 DTC Block heater???

[cook96cbra]

Hey ya'all. I bought a used 2005 320 DTC and I need a block heater for it. I would prefer the kind that goes in place of a freeze plug. Does anyone know where or what to get? Or what size freeze plug it is and if I need a 90 degree style or what I need in general?

I talked to Shelly at Sundowner and she was kind of stumped, said she would look into it. I figured I would ask you guys too.

Thanks, Matt.