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Old 11-26-2022, 11:33 AM   #1
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Anyone tell me new cost to add 5500w generator from OEM?

I am looking at a couple near new RVs and I'd like to know what the OEM usually charges to add the, what appears to be pretty standard Onan 5500w, to an RV? It appears the cost of the generators is around $5k, but there would have to be a transfer switch, plumbing, wiring, etc.

I am basically trying to sum the 'value' of the upgrade.
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Old 11-26-2022, 12:03 PM   #2
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Don’t have to have a transfer switch - and in fact they can be iffy anyway. A setup that allows just plugging the shore power tether into a receptacle to the generator, while being less convenient(especially in a MoHo), is less of a headache.

Only plumbing needed would be for fuel - and I reckon most MoHo’s these days already have a tee in the line for the genset to pull fuel from the fuel tank.

If you go the tether plug-in route, there is little wiring involved - ~5 feet of wire, flex conduit, 2 gang box and a receptacle.
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Old 11-26-2022, 06:25 PM   #3
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Don't really have the answer to your question, but, I'd like to give you some things to think about: since you are posting in the 5th wheel section, i'm going to assume you are talking about adding a generator in the front cargo bay of the 5th wheel, keep in mind you will add a bunch of weight to your pin, what are you pulling the trailer with? how will this affect your weight limits? if the trailer wasn't designed for a genset there, what safety measures will you need to add? I would highly recommend doing what MrMark52 suggested-go the stand alone gennie method, if you don't want the hassle of moving the generator all ther time, make sure your rear frame is strong and carry the generator on the back bumper, easy plug in and use. this is the solution for the folks i travel with. JMHO
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Old 11-26-2022, 10:41 PM   #4
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Are you wanting to add one or just get idea of how much to charge for one?
Good luck and keep us posted
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Old 11-26-2022, 10:54 PM   #5
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Was the gen set an option on the RVs your considering?

Is there already a metal lined vented compartment in the front storage area of the fifth wheel?

Maybe if you post the make, model and year of the fifth wheels you're looking at, a member may have access to factory pricing info.
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Old 11-26-2022, 11:09 PM   #6
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I mean....all I am asking if anyone knows what dealers/OEMs charge for the options. It is an option for many 5ths. Do I need help adding one? NO! I am just asking the value of one being added. Apparently no one has ever done or shopped for that! Amazing!
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Old 11-26-2022, 11:23 PM   #7
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Quote:
Originally Posted by fastline View Post
I mean....all I am asking if anyone knows what dealers/OEMs charge for the options. It is an option for many 5ths. Do I need help adding one? NO! I am just asking the value of one being added. Apparently no one has ever done or shopped for that! Amazing!

More correctly, no member who has read your post in the first 12 hours, has the info you're after.

Maybe tomorrow
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Old 11-26-2022, 11:26 PM   #8
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Quote:
Originally Posted by fastline View Post
I am looking at a couple near new RVs and I'd like to know what the OEM usually charges to add the, what appears to be pretty standard Onan 5500w, to an RV? It appears the cost of the generators is around $5k, but there would have to be a transfer switch, plumbing, wiring, etc.

I am basically trying to sum the 'value' of the upgrade.
Is this on a 5th wheel?

If so, and as mentioned,, you need to be careful where you put it to make sure you don't cause a weight issue. It needs to be installed in a ventilated compartment for sure. You would need a fuel tank installed if the fuel type is something other than propane. Of course plumbing and wiring would have to be run in either case. A transfer switch is not required since the genset output can be fed straight into a mounted box with receptacle. You'd simply plug your shore cord into it when running off the genset.

Added to say because I just saw your last post: It would be expensive! Your best bet would be to contact an RV dealer and get a cost with and without. I do know that some 5th wheels have a "generator" prep option that makes after market installation a lot easier.
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Old 11-27-2022, 03:04 AM   #9
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The value of the modification will not be the same as the cost of installing the modification. But that's likely not a surprise to anyone. You might want to cruise the pages of places like RVT or RVTrader to see if you can find same model RVs with, and without, a generator. The real value, will be determined by the individual buyer and what they are willing to pay for the installed generator. Not everyone will need a transfer switch or even a generator. But not having a transfer switch might be a major consideration for the potential buyer.
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Old 11-27-2022, 05:55 AM   #10
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Quote:
Originally Posted by fastline View Post
I mean....all I am asking if anyone knows what dealers/OEMs charge for the options. It is an option for many 5ths. Do I need help adding one? NO! I am just asking the value of one being added. Apparently no one has ever done or shopped for that! Amazing!
My suggestion would be to call the OEMs/Dealers.
Getting chippy here won't help.
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Old 11-27-2022, 06:38 AM   #11
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from what ive seen over the years from other people its approx 6-8k to have one added after the fact. we have a toyhauler with an onan and i love it. i dont know how we got along before without it, its just so much more convenient. anyone suggesting a standalone unit has never had the luxury of an onboard is all i can think. a standalone will have to be stored somewhere, most likely the bed, where it will still add to your rear axle load, just like the onboard will amd having it hung on the back is a no go for me. too insecure and thats alot of weight to hang back there with no real security.
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Old 11-27-2022, 06:57 AM   #12
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On the build sheet for my 2021 Mobile Suites the listing for a Onan Marquis Gold 5500 watt generator w/prep included listed for $6488.
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Old 11-27-2022, 08:17 AM   #13
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Quote:
Originally Posted by fastline View Post
I mean....all I am asking if anyone knows what dealers/OEMs charge for the options. It is an option for many 5ths. Do I need help adding one? NO! I am just asking the value of one being added. Apparently no one has ever done or shopped for that! Amazing!
I pulled our build sheet on our 2018 Road Warrior from when we purchased in October 2017, 5 years old. But at that time the gen prep, 5500 generator, was around $7000. But keep in mind our was factory installed.
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Old 11-27-2022, 08:19 AM   #14
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we had the dealer install an onan 5500 in our 5th wheel when we bought it. the cost was around $5500 but that was 8 years ago. and the trailer came from the factory with the gen prep package, which included the transfer switch and the metal generator shield.
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