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Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp
Progressive Dynamics

Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp

Part Number: PD4655V
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$303.32
Retail:$348.75
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Upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers. Works with Parallax/Magnetek model 6355, WFCO model 8955, and Parallax models 7355, 7155, and 8355. 1-800-940-8924 to order Progressive Dynamics accessories and parts part number PD4655V or order online at etrailer.com. Free expert support on all Progressive Dynamics products. Great prices and Fastest Shipping for Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp. Accessories and Parts reviews from real customers.
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  • Reviews (185)
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Progressive Dynamics Accessories and Parts - PD4655V

  • RV Power Converter
  • Converter Section
  • Progressive Dynamics
  • 55 Amp

Upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers. Works with Parallax/Magnetek model 6355, WFCO model 8955, and Parallax models 7355, 7155, and 8355.


Features:

  • Upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers
    • Works with Parallax/Magnetek model 6355, WFCO 8955, and Parallax models 7355, 7155, and 8355
  • Power converter with smart charger converts AC shore power to DC power to quickly charge your RV batteries
    • Provides continuous power to your DC breaker panel to run 12V loads
    • Works with flooded lead acid, AGM, Lithium, and gel batteries
  • Integrated Charge Wizard monitors your RV's batteries and automatically begins charging when needed
  • Automatic multistage charging switches modes as the battery charges and helps extend battery life
    • Boost mode charges at the full rated load for a quicker recharge time
    • Normal mode provides controlled voltage to ensure a full charge
    • Storage mode maintains a lower voltage to compensate for self-discharge which reduces battery stress
    • Equalization mode activates to prevent stratification and sulfate buildup during extended storage cycles
  • Built-in safety features protect your RV's electrical system
    • Current protection for reverse polarity, overheating, overloading, short circuiting, and over/under voltage
    • Cooling fan controls the temperature of the converter and removes excess heat generated by the unit
    • GFCI protection helps prevent ground fault interruption
  • Made in the USA


Specs:

  • Application: 12V battery systems
  • Rated power output: 740 watts
  • Amperage output: 55 amps
  • Voltage:
    • Input: 105 - 130 VAC
    • Output (no load): 13.6 VDC
    • Output (full load): > 12.6 VDC
  • Temperature ranges:
    • Operating range: 32 F to 122 F
    • Storage range: -4 F to 176 F
  • Dimensions: 13-1/4" long x 8" deep x 5-3/8" wide
  • Weight: 10 lbs
  • 2-Year limited warranty


PD4655V Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp

Parallax/Magnetek model 6355

Parallax model 7355

Parallax model 7155

WFCO model 88955

Installation Details PD4655V Installation instructionsAlternate Instructions PD4655V Installation instructions


California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

185 reviews
Upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers. Works with Parallax/Magnetek model 6355, WFCO model 8955, and Parallax models 7355, 7155, and 8355.

by:

It was an easy install. Replacing a 7155. Took pictures of where the wires go before to help with install. I had to remove it from its metal case to install it, just 4 screws in the bottom to remove it. I took a pic of the old unit to show

Victoria H. profile picture
Etrailer Expert

Victoria H.

3/14/2025

That's a clever and convenient idea, Sean! Thanks for sharing your insight, I know it will be a helpful tip to someone installing this in the future.



by:

When the charger on the original converter failed I wanted to replace it with a USA made converter. I am glad I did. The Progressive converter fit perfectly and is built much more solid. It has performed perfectly in the year we have been using it.

Brooke M. profile picture
Etrailer Expert

Brooke M.

2/13/2025

Im glad to hear you are so happy with this panel! Are you fixing up the RV for an upcoming trip?



by:

The converter matched up perfectly
Slipped right in and was very easy to install... definitely can't beat the price....way better than any other quote that I received

Brooke M. profile picture
Etrailer Expert

Brooke M.

5/9/2025

We mean business, that's for sure ;)



by:

Had to replace my power converter on my 06 rage’n toy hauler. It was making noise and causing interference with the stereo system so I knew it was on its way out. This converter bolted right up and fit in place. Very little had to be modified or changed to make it work. Noises are now gone and converter works flawless!



by:

Lasted about 10 months. Now the fans don't come on and the thermal switch shuts down the power. Mainly use shore power to keep batteries charged, trailer has been out once.



by:

Warning! On recent (2021 and later) models of trailers this is not a drop-in replacement. The newer WFCO 8955s are no longer installed in a metal box, they are using molded plastic boxes now. The PD4655's box does not fit where the old converter electronics go. Since I do not want to replace the entire electrical panel I'm having to remove the PD4655's electronics from the metal box and figure out some way to safely mount it inside the plastic cavity.

Heather A. profile picture
Etrailer Expert

Heather A.

10/10/2024

You are correct, the WFCO 8955 is in a molded plastic box. You will need to remove the new converter core assembly from provided enclosure, by removing (4) screws securing converter to enclosure and slide converter out. Discard the metal enclosure and screws as they are not used when replacing this model converter. Then you can replace the unit inside your original box.



by:

Ansley J, did an outstanding job finding the proper converter I needed and placing my order. It arrived on time and it was very easy to install. I plugged in my RV and the converter started charging my lithium batteries. I highly recommend this converter and etrailer for outstanding customer service.



by:

Replaced 12 year old converter section of Parallax 7355 Power Center. Positive lead wire from PD converter to existing DC circuit board barely long enough. Had intended to use the PD DC circuit board that came with the converter, but didn't because the wiring of the Parallax board was quite different (i.e., PD board had screw-down attachment of positive circuit leads, whereas the Parallax had pigtails soldered to the board that came from a compartment in the rear of the power center (which I would have had to completely remove in order to see what was really going on)). PD's installation instructions were barely adequate (for example, installation of the new DC board was barely mentioned - and its installation instructions were included in the de-installation instructions for the Parallax converter!). The Phillip's heads on the 4 machine screws that came with the unit stripped out with just manual screwdriver effort.

Overall, though, it worked the first time I plugged in shore power, and also when I ran my generator. I will need to use it for a season to tell if it charges my new house batteries better than the old Parallax.

On the positive side, etrailer's web site was easy to use and the product came in its original, un-opened packaging in a timely fashion during the busy pre-Christmas season. I also like the amount of information etrailer provides on the products it distributes.



by:

All happened just as we were told it would including, shipping, installation, function, and resolution. This truly helped us out while in the early stages of a two month trip. Hey have proven to be a great resource that I’ll make use of should we need to resolve a new issue.



by:

This is a very good product much better than the original converter

Jerramy profile picture

Jerramy

2/15/2025

It works fantastic

Kate F. profile picture
Etrailer Expert

Kate F.

2/17/2025

@Jerramy Glad things are working as they should Jerramy! Any fun trips planned this year?


by:

Best truck and RV store on the Internet



by:

Retailer got my AC > DC converter out for next day shipping at the very end of the day and saved my trip



by:

So far so good- installed in a 27 foot airstream. Screw holes on unit do not line up- nothing a sheet metal screw can’t fix.



by:

Etrailer had the recommended replacement power inverter for my RV which fit exactly as stated. Directions were easy to follow and installed in an hour and a half.

Gregory profile picture

Gregory

7/11/2024

Worked exactly as it should once installed. No problems to date. Would recommend this to anyone.



by:

e-trailer and the team is awesome! I highly recommend them! The product is exactly what I needed and I am impressed with the quality and ease (instructions included) to replace the old system.



by:

The controller arrived two days after the order was placed. Packaging was excellent. Had it installed the day after it arrived. Directions were clear making the install very doable. Took about an hour and a half. The previous controller failed while we were travelling. The new one works perfectly. We can now use our small travel trailer with no worries. Progressive Dynamics produces quality products. Etrailer is very professional and effective. Highly recommend both of them.



by:

Direct replacement part used to replace a unit that was damaged by electrical surge

Scott profile picture

Scott

9/7/2024

Still working with no complaints



by:

I love it. It absolutely fixed the problem. Seemed to be a fairly easy install for my friend. Delivery was fast. Thank you so much

Corinne profile picture

Corinne

2/4/2025

Excellent. Still working just fine and I thank you so much!

Kate F. profile picture
Etrailer Expert

Kate F.

2/4/2025

@Corinne Our pleasure! Glad to hear the converter is still working as it should =)


by:

Super easy and fast to install, very good quality!



by:

THE ONLY PROBLEM WAS, THE SHIPPING DEPARTMENT PUT THE ups SHIPPING LABLE OVER THE PRODUCT LABEL ON THE BOX. SO I HAD TO HAND WRIGHT ON THE BOX WHAT IS IN THE BOX. NOT GOOD FOR A RETAIL SETTING.



by:

Easy installation to replace our old blown converter! Awesome customer service! Delivery time as promised! Will definitely be using etrailer for all our rv needs!

Debbie profile picture

Debbie

5/15/2024

Still working perfectly!



by:

I have yet to install the unit but I must say Amy J is awesome. I had ordered the wrong item and Amy processed the return and the replacement purchase and instant shipping.

If only there were more folks like her.



by:

Overall, the unit works well. The included DC fuse board had fewer slots than the original board with the trailer and did not appear to be as robust. As a result, I left the original fuse board in place. The charger works very well to charge my lithium batteries. The fans are considerably quieter on this charge converter than the originally unit. I am pleased with how it has performed so far.



by:

Even though the directions included with the Power Distribution Panel were for earlier versions of the one I was replacing, the directions were adequate to guide the installation. The Power Distribution Panel is working. I especially like the fact that there is a system test capability unlike the one being replaced.



by:

Nice product easy to install


25
185
Show More Reviews

See what our Experts say about this Progressive Dynamics Accessories and Parts

  • What Kind of Batteries Does the Progressive Dynamics PD4655V Work with?
    Yes, it will! The Parallax/Magnetek or WFCO RV Power Centers # PD4655V will work with Lithium batteries like the Lifepo you mentioned, flooded lead acid, AGM, and gel batteries.
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    Hey Kyler, thanks for reaching out! **UPDATE IN COMMENT SECTION - JUMPER LOCATION IS DETERMINING FACTOR** The Progressive Dynamics Replacement Section # PD4655V is compatible with lithium batteries. There is a button on the board (see photo) that allows you to change it to a lithium setting. Progressive Dynamics has gone back and forth on this topic a few times but it's mainly because the lithium battery market is still fairly new to the RV world so there was a lot of confusion in general....
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  • Power Converter Replacement for my Parallax Series 7300 Model 7355
    The correct part to replace your current converter charger is the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp part # PD4655V. This is an exact replacement and will be all you need to get back operational. I have linked a video on it for you to check out.
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  • How to Tell if Progressive Dynamics Converter is in Lithium Mode
    Hey Kenneth, thanks for reaching out! I think it comes set for Lithium, but you will need to check. If you look at the "H6" position on the circuit board (see attached photo), you'll want to make sure that jumper is in the "LI" position for your Progressive Dynamics Replacement Section # PD4655V. The blue button has to do with the stage of charging that the unit is in, not for what type of battery it is compatible with - which is a common misconception. Let me know if you have any other...
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  • Replacement Converter For Parallax 7355 Power Center Converter
    The Replacement Converter # PD4655V is the correct converter for your Parallax 7355 power center. I do not see that WFCO shows their 8955PEC being acceptable to use with your Parallax 7355.
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  • Replacement Lower Section for Converter 7355 to be Lithium Compatible
    Hey Anthony, yes, the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp, # PD4655V is what you are looking for. This upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers and works with Parallax/Magnetek model 6355, WFCO 8955, and Parallax models 7355, 7155, and 8355 and is lithium compatible.
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  • 55 Amp Power Converter That Will Replace Magnetek 6300 Series 45 Amp Converter
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  • Replacing Parallax 7355 Converter in 2004 Dutchman Travel Trailer
    Bummer! I can help you out. The 220 will fry the circuit breakers and the power converter. Camping trailers are made for 120V power at either 50 amps or 30 amps and have an integrated converter to 12v power for certain components like lights so that they can be utilized in a camping area where there isn't 120v power available. If just the parallax 7355 needs replaced, then the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp # PD4655V is a direct replacement....
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  • Parallax Converter Replacement for 7300 7345
    The correct replacement converter for your Parallax 7300 7345 is the part # PD4645V which is 45 amps and not what you referenced.
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  • Replacing a DC Convertor as Part of AC Panel on RV
    The Progressive Dynamics PD9200 Series Inteli-Power Converter - 12 Volts - 45 Amps # PD9245C is 8-1/4" long x 7-1/4" wide x 4-11/16" deep. If this fits in the slot you are referring to in the bottom of the power panel then you will be all set. You can cut the plug off the end and hardwire it as you stated, but that will void the warranty because you will be altering the manufactured product.
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    Hello Lou. On the wfco 8955pec it is a 55 amp unit, its why it has the 55 at the end of the part number. The Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp # PD4655V, is also a 55 amp unit. Replacing the circuit board unit in your wfco 8955pec with the # PD4655V will cause zero issues in being able to handle the amperage of your slide out motors, or anything else that you currently have hooked up to the wfco 8955pec as this circuit board works as a...
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    The Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp # PD4060K is a confirmed replacement for your model 7355 that also has the box and circuit breaker panel. If you simply want the converter replacement, then the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp # PD4655V is a direct replacement for the converter.
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    Image 1 for
  • Replacement Converter for Parallax/Magnetek Models 7355, 7155, and 8355
    Yes, the Replacement Converter for Parallax/Magnetek or WFCO RV Power Centers - 55 Amp, # PD4655V is what you are looking for. This upgrades or replaces the converter section for 55-amp Parallax/Magnetek, WFCO, or Parallax RV power centers and works with Parallax/Magnetek model 6355, WFCO 8955, and Parallax models 7355, 7155, and 8355.
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  • Correct Replacement for Parallax Model 7355 Converter
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    For a replacement converter you can use the Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp # PD4655V. This converter is an exact replacement for your WFCO 8955 so you won't have to worry about dimensional issues. It features an integrated Charge Wizard that monitors your RV's batteries and automatically begins charging when needed. It also has multistage charging that switches modes as the battery charges and helps extend battery life.
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    Hey Brynn; the breaker panel section on top should be just fine, so you'll just want to replace the converter section. For the Parallax model 7355 we have the exact replacement you need, from Progressive Dynamics: - Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel - 55 Amp # PD4655V
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  • Recommended Converter for a WFCO WF-8955PEC
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  • Lithium Compatible Converter Replacement for a WFCO WF-8955PEC
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    The PD4655LIV unfortunately is no longer in production you'll need the Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel # PD4655V instead. This will also simply replace the converter section of your current power center and has a lithium jumper on the circuit board to adjust your charging profile from lead acid to lithium. As for the solar, this system is going to be completely independent from the your power center. Solar begins at the panels up on the roof...
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  • Replacement WF-8955PEC that Works w/ Lithium Batteries
    I would be happy to. The replacement converter for your WF-8955PEC is the Progressive Dynamics Replacement Section for AC/DC Power Distribution Panel item # PD4655V. This unit will fit in the same dimensions that your WF-8955PEC fit in and would only replace the converter section. However, it doesn't work with lithium batteries and there isn't an option to just replace that converter with one that does. To be able to use lithium batteries down the road you will need to upgrade to the...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
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Employee Cole B
Installed by:
Cole B
Employee Andy C
Installed by:
Andy C
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
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Employee Carrie F
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Employee Amanda M
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