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Is There a Replacement Converter Section for a WFCO WF8735/8740  

Updated 01/03/2026 | Published 12/31/2025

Question:

Hi! Im double checking that the Replacement Converter Section for Progressive Dynamics Inteli-Power 4000 Series 45 Amp Power Centerinch will work with the WFCO WF8735/8740 in our 2012 Jayco Jayfeather x17z. If not, Id love a recommendation for the part to replace the WFCO converter that can charge two LiFePO4 batteries in parallel. Thank you kindly

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WFCO WF8735/8740
WFCO WF8735/8740
(click to enlarge)
WFCO WF8735/8740
WFCO WF8735/8740
(click to enlarge)

Expert Reply:

Hey Jamie, thanks for the pics! I do have a recommendation for a how to replace your WFCO WF8735/8740 to be compatible with lithium batteries but the item # PD4045CSV, you referenced will not work and there is no way to just replace the converter.

I recommend the Progressive Dynamics 4000 Series Mini RV Converter w/ Charge Wizard and AC/DC Distribution Panel item # PD4045KA. This is going to completely replace your entire power center. It is rated for 45 amps just like your current one and is going to be compatible with lithium batteries.

If you have any additional questions, go ahead and click on the box that says Reply to Jerred H and I'll be happy to answer them.

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Jerred H
PD4045KA
PD4045KA
(click to enlarge)

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