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Old 10-29-2020, 09:31 AM   #1
Junior Member
Monaco Owners Club
Join Date: Oct 2016
Location: Lancaster, PA
Posts: 1
Newbie - Possible Purchase

Good morning all,
This is my first time posting on this forum but I have been following it for quite a while.
I found a 2004 Monaco Diplomat for sale near me. I looked at it yesterday but did not spend a lot a time going over all the systems as I'm not sure about the living room slide seal. The coach has 32,000 miles on it so it has not seen a lot of use, which concerns me. It does have new Michelin tires, new coach and chassis batteries and the engine and generator were fully serviced. But my concern is in the picture of what looks like the slide seal on the floor at the edge of the slide. Is this a major job to replace?
So the rest of the story, the owner claims it has a Cummins 400hp but the build sheet I got from the REV Group lists it as an ISC 330hp. I know the ISL 400hp was used. I will verify that the next time I go to take a closer look at the rest of the coach. Plus the owner is asking $50,000 which I think is too high for a 2004.Thoughts???
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Old 10-29-2020, 09:42 AM   #2
Senior Member
Join Date: Jul 2018
Posts: 3,133
I don't know that the price is too high for a coach in good condition but this picture raises some questions for me.

The seal you point out on the floor is one of them but the thing that caught my eye is the wall paper over the dinette - there's been water intrusion into the slide out. Inspect the underneath of the slide out while it's deployed - look for rust, bubbling paint, corrosion - any sign of water intrusion. The repair costs start at around $2k and go up from there.

If you're really interested in this coach, I'd hire NRVIA inspector. The $500 or so you'll spend could save you thousands or provide some relief that some defects are cosmetic only. Either way it will give you some price negotiation power if there are significant defects.

Edit PS - I'd believe the build sheet but it's possible that over 16 years the engine was replaced with an ISL. You'll need the engine serial number and a phone call to Cummins to verify both the model and any service done by a Cummins shop.
2005 Four Winds Majestic 23A
ďTo the world you may be one person; but to one person you may be the world.Ē - Dr Suess
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Old 10-29-2020, 10:05 AM   #3
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Newmar Owners Club
Join Date: Jun 2016
Location: Katy, TX
Posts: 499
Sportcruiser --

Welcome to the forum! There are many great forum members willing to provide help anytime!

I concur with Solo's guidance to hire a certified inspector to conduct a thorough inspection of the coach including having the inspector accompany you and current owner on a test drive to feel/listen for any potential engine/transmission/suspension items.

I purchased my first ever coach in 2015. It was a very gently used, excellent condition on the coach side, 2007 Damon Astoria 3774 diesel pusher that had only 6,000 miles of use during its first eight years of life. Even though I had a thorough pre-purchase inspection conducted (resulting in replacement of the refrigerator and one roof A/C at the owner's cost), I had several chassis problems as I used the coach including replacement of sway and stabilizer bars, replacement of dash A/C compressor and hoses, replacement of turbo charger controller. On the coach side, I had to replace the entry steps motor and the controllers for the two big slides. I knew that purchasing The Damon that sat idle for most of its first eight years that I could have these "little use" problems. When I purchased the Damon I also purchased a three year extended service contract from Xtra Ride in anticipation of these type of repairs. Xtra Ride provided great service and financially I came out ahead -- the cost for the service contract was lower that the cost of the repairs if I had "self insured".

Let the forum know if you hire an inspector and if you decide to purchase this coach.
Mike & Cindy in Katy, TX
2016 Newmar Ventana LE 4037
2016 Jeep Wrangler Unlimited Sahara
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Old 10-29-2020, 11:50 AM   #4
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Location: NorCal
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Welcome to the forum, I would be concerned on which motor rv has, if rv is triple slide as picture looks $50K price is not out of line.
2002 Monaco Executive 500 ISM
2004 GMC 2500HD 4X4
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Old 10-30-2020, 06:30 AM   #5
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Monaco Owners Club
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Join Date: Jul 2012
Location: Lexington, SC
Posts: 2,052
This is what I have always posted when asked about buying a used MH

"Once you find a MH you are interested in, get professional inspections done. If you don't do this BEFORE you purchase, you run the risk of spending significantly more AFTER the purchase. If something is found, the inspector should be able to give you an estimate to repair. You can then decide if you want to proceed and can use it to negotiate a better price. You will be going into it with your eyes open. IF nothing is found, GREAT!!

I would suggest that you get an independent certified RV mechanic to inspect all the RV systems, including the roof. In addition I would have the engine, transmission, frame, etc. inspected by a diesel service shop. Having a coolant and oil analysis by a lab (like JG Lubricants ) would reveal any hidden problems.

Make sure everything is in writing!! Any purchase should be contingent upon successfully passing these inspections/tests.

I would do this to any used MH I was looking to buy.

You get a 10% discount if you use "IRV2" as a promo code"
Vera & Ken
1998 Holiday Rambler Imperial, RR8S Chassis
Cummins 6C8.3 mechanical engine, 325HP, 3060 Allison
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Old 10-30-2020, 11:51 AM   #6
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Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 44,449
Hi ! Welcome to IRV2! We're sure glad you joined us!

I would NOT buy this coach without having a professional RV inspector give it a thorough inspection!

Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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