Replacing Lower Converter section of Parallax 7355

Updated 03/16/2026 | Published 03/13/2026

Question:

I have a 2004 fifth wheel 55amp. Im looking to replace my converter. Came home no outlets or lights worried. Put a new battery in all is great but turn battery off n just keeping it hooked to electric we lose air conditioner n 12v lights. All outlets work. Plug battery in everything works but we dont wasnt battery to die on us. Found one converter but $500 is too much. Do u have the following conver. Parallax series7300 model 7355

asked by: Nedra G

Expert Reply:

Hey Nedra, we have the replacement lower section from Progressive Dynamics part # PD4655V which was designed to replace the Parallax 7355 that you mentioned. This will be a nice upgrade that is under the price you mentioned and will be more reliable as well. Any idea what took out the old converter? Do you have any type of surge protection?

expert reply by: Jameson C