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Old 01-10-2023, 07:53 PM   #1
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Radiator cooling fan blade replacement suggestions

[Mod Edit] 2008 monico diplomat, cummins 400 isl, roadmaster chassis. One of my blades has a piece missing. It is a constant speed fan, no clutch, rear radiator.
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Old 01-10-2023, 09:59 PM   #2
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What does fan look like .Share a pic . I know multi-wing supplied side radiator fans for many years. They sell individual parts owners have got new parts from them. Source engineering sells rad fans that use up significant less horsepower more for rear radiators.
Here's fan listed for ISL
https://www.ebay.com/itm/18572792601...mis&media=COPY
Theres a couple multi-wing blades listed as well.
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Old 01-11-2023, 11:11 AM   #3
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Source Engineering sells new energy saving fan blades.
Source Engineering Inc | Custom RV Chassis | Eugene, OR
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Old 01-11-2023, 01:29 PM   #4
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The only picture on Source Eng . page ...sure looks like Multi-wing brand fan just like the pair of my 95 side radiator fans. maybe re-tuned IDK what fan is OEM on Diplomat.
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Old 01-12-2023, 03:30 PM   #5
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I just put the new fan from Source Engineering on my 2008 Diplomat last year and Iím really happy. Incredible reduction in noise level.
Mine was missing a small piece from one blade as well.
Good luck!
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Old 01-17-2023, 02:25 PM   #6
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Doug, do you have part number of old blade and new blade, did you put it on or have it done.
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Old 01-17-2023, 03:16 PM   #7
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Tom,

I can get that for you when I get home.

I just called Jim at Source and he actually had me measure the blade. I believe it was 31 inches across?? He had asked me a couple of questions and thought he knew which one I needed but wanted me to measure to be sure.

I installed it myself in about 1 hour. Old blade came right out the inside hatch with the removal of 1 bracket that secured a radiator hose. I did have to remove the closet doors to get the second hatch up for access. That took as much time as the blade replacement itself.
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Old 01-17-2023, 03:35 PM   #8
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Doug, could you call me, would like to talk to you about removal/install. Tom 731-267-7982
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Old 01-24-2023, 03:26 PM   #9
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Superior Turbo, great prices on OEM fans and multi-wing high performance fans( less horse power to drive fan.)
e-mail Larry, great prices 30% cheaper
lbrudzynski@superiorturbo.com
(Larry)
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Old 01-24-2023, 03:30 PM   #10
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Do not drive, your fan is out of balance. Another piece comes off and goes through the rad, You will not be a happy camper.

Get a multi-wing fan blade now.
Happy travels
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Old 01-30-2023, 08:12 AM   #11
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I installed the Source Engineering fan blade many years ago.

MPG went up, noise went down 5 db, acceleration went up, downhill slowing from the drag was reduced.

Depending on your model, I have pictures that might help.

Our Endeavor is a SKQ model.
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Old 01-30-2023, 06:40 PM   #12
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Source engineering fan blades

Quote:
Originally Posted by YC1 View Post
I installed the Source Engineering fan blade many years ago.

MPG went up, noise went down 5 db, acceleration went up, downhill slowing from the drag was reduced.

Depending on your model, I have pictures that might help.

Our Endeavor is a SKQ model.
Have 2002 Holiday rambler 31 fr neptune with cummins diesel. Interested in rediator fan replacement. Cost, where available, how much difference did it really make??
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Old 01-31-2023, 05:14 AM   #13
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https://sourcerv.com/

Give these folks a call.
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Old 02-01-2023, 04:38 PM   #14
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Just be careful on what part of the country you will be traveling, the noise is high on the original because of the amount of air it is moving, less noise equals less air movement. If you don't drive in the deep South, and when it is the hottest part of the year you will probably be ok. The noise is air movement.
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