2021 E450 dual alternator
Does anyone have this package, or can anyone help with parts? Specifically with the gas 7.3L. My RV has the single 210 amp alternator, and I’d like to upgrade to a 240/157a dual alternator setup...
Forum Discussion
rjstractor wrote:And here we have first-hand experience being posted.ron.dittmer wrote:
I understood that a chassis with the motorhome prep package has a higher amperage alternator than a box truck chassis. This addresses most people's needs but Brian has some unique plans.
I imagine Ford's ambulance prep package (with twin alternators) would be ideal for his plans. Apparently the Ford parts guy he was working with was too lazy to determine what is needed from the ambulance prep package.
Brian, I wonder if a Helm shop manual for your chassis will identify what you need.
It's a misconception that the ambulance prep package has dual alternators. It does have dual batteries and a 240A alternator and dual alternators is still an option, but the rest of the package has little to do with the electrical system and more to do with the auxiliary HVAC systems, front axle rating and required heat shielding. All of the newer ambulances that I've work with have automatic high idle. Ours do not have dual alternators, since apparently the 240A alternator is sufficient, and we've never had an issue with not having enough alternator output. The prevelance of all LED lighting has helped immensely with this.
Thank you!
