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310 Gen Prep

drbarbour66

New member
I have a 2025 310RL we were told was gen prepped. We can find no electrical hookup or propane hose. Is there anywhere i can get these components in a kit to install an Onan generator.
 

brenkco

Member
My 2026 310RL propane and electric hose were in the front left lower storage bay. Was the control module in the control area in the kitchen? Absent that, I'd email Alliance customer service first. Then parts if missing.

Ken
 

George

Well-known member
The following does not answer your parts question: 🙄
On a 2024 310RL the gen prep is optional as stated in its brochure. If I had the prep it would be noted on the MSRP sheet and it is not in my case. I wish it did.
Check your 2025 brochure and the MSRP sheet (window sticker).
 

BryanValRox

Elite Member
Any help?
Two thoughts come to mind.
1. Contact Alliance Parts and ask them for a parts listing when a coach is ordered with the genset prep option.
2. Contact the Cummins Branch in Elkhart IN and see if they will supply you with the BOM(Bill of Material list) that they sell Alliance when they order the ONAN Option. 574-262-4611
 

mboudoin

Member
25 gen prep on mine had the hose and control cable in the generator box and the electrical tap behind a false wall in the battery bay.
 

WE3ZS

Member
Gen prep should also include a transfer switch that has cables from the shore power inlet and generator on the supply side and the coach on the output side. I have a hardwired EMS wired in between the 50 amp power cable connection And the transfer switch. The EMS doesn’t like my Honda generators (2x eu2000s) so I wired a new 50 amp plug up front to plug them into, this bypasses the sensitive EMS and works perfectly. I did remove the gen prep propane feed line just to get it out of the way and to avoid any possible damage to it in the future.
 
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