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Replacement Converter for 2018 Jayco Precept 36T  

Updated 01/01/2026 | Published 12/26/2025

Question:

Hello ive got a 2018 Jayco precpt 36T and im trying to find a replacment contertor. I dont see in real numbers on the old one can you help me?

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Expert Reply:

Hey Aaron! Did you end up identifying the converter in your Precept? Do you have 50A service on your motorhome? The Progressive Dynamics 4500 Series RV Converter w/ Charge Wizard and AC/DC Distribution Panel # PD4590K18LS8 is designed for 50A service so as long as that is what you have this will work as a replacement.

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Robin H
PD4590AV
PD4590AV
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Steve M. profile picture

Steve M.

12/31/2025

I install the PD459018LS8 90 amp to replace the 90 amp panel on my 2017 JAYCO SEISMIC TOY HAULER, works great has a winter charging mode when in storage, led lights for blown fues. Battery Mode Switch,12V 90 Amps, can charge new battery types AGM, Gel, Lead Acid, Lithium Multi-Stage Charge, easy install just label all wiring when removing the old panel Great Product, Steve

Tomk profile picture

Tomk

12/31/2025

Aaron, I installed this unit in my 2018.5 Jayco Seneca as I was planning on solar panels and lithium batteries to lengthen my dry camping ability. I installed it because I was using conventional lead acid batteries for the starting batteries and lithium for the coach itself. This panel had the ability to charge the lithium or lead acid with the flip of a switch. Had to install an isolater between the led and lithium but worked like a charm, in fact still working like a charm. I’m 75 years old and I installed it myself with no problems (except trying to get off the floor when I finished). This is a great unit and we are full timers so we needed the reliability of this converter. It was an exact replacement for my old converter with the exception of a lead/lithium switch. I can stay dry for a long time on electricity, although I run out of water and holding tanks.

Ross profile picture

Ross

1/1/2026

I installed a 50amp unit over a year ago in my Keystone 36' 5th wheel to upgrade from 30-amp to a 50-amp service. Unit has been solid since installation. I upgrade the Keystone to add a second air conditioner unit. I have had no issues.

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