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Old 12-31-2021, 12:56 PM   #1
Tonyf
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Default SN fan Clutch

Hi, it seems the Horton EC450 fan clutch used on the VT365 is in short supply. I found one and they wanted $1K for it, little pricy. Any know of a suitable less costly replacement? Something that will tone down the fan noise?

Thanks!
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Old 01-09-2022, 06:54 PM   #2
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Go to finditparts.com, I got one for I think around $400
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Old 01-16-2022, 10:26 AM   #3
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Go to finditparts.com, I got one for I think around $400

Thanks, mine does not have the electric fan, and I did not want to retrofit one. I was able to find a replacement viscous clutch other than the International model, hopefully it will run the fan less often. For reference its KIT MASTERS RV0410100-00 Engine Cooling Fan Clutch. Will install it once it arrives and report back.
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Old 01-20-2022, 11:42 AM   #4
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I got my 450 off ebay, was like 3-400$.

The retrofit was super easy if you go that route. Also, Kit-Masters has a gold top 2 speed fan clutch that should fit that would be even better than the Horton 450. The ~15-25% on all the time would be nice.

--Jeff
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Old 01-20-2022, 05:26 PM   #5
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I got my 450 off ebay, was like 3-400$.

The retrofit was super easy if you go that route. Also, Kit-Masters has a gold top 2 speed fan clutch that should fit that would be even better than the Horton 450. The ~15-25% on all the time would be nice.

--Jeff
Thanks Jeff, I did not see the gold model listed when I checked Kit Masters otherwise would have ordered that one. Soon as the weather breaks Iíll get around to installing the one I have, itís 23 today and thatís down south!
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Old 01-21-2022, 10:37 AM   #6
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Thanks Jeff, I did not see the gold model listed when I checked Kit Masters otherwise would have ordered that one. Soon as the weather breaks Iíll get around to installing the one I have, itís 23 today and thatís down south!
I didnt realize that clutch existed when I bought the horton, but I wish I knew. The amount of power the fan draws is insane. BUT, in the summer, I need just a little more airflow, especially with the AC on. I end up just keeping the fan on a lot of the time manually.

*If* you still have issues with your viscous clutch not disengaging, check your radiator. Those crossflow IH radiators are known to get plugged up in the top section, and the air flow thru that section is cooler air. The warm air is what the fan clutch needs to operate properly. On top of that, since a large portion of the air thru the fan flows thru the Intercooler alone and not thru the radiator, it sorta makes the fan clutch operation inconsistent I found.
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Old 01-22-2022, 03:34 PM   #7
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Installed the Kit Master fan drive today. Its noticeably quieter, especially at 35 degrees -- our high. The old drive was leaking fluid as well. So, calling this done!

Will clean the radiator fins when I change the coolant, sometime this spring.
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Old 01-27-2022, 09:59 AM   #8
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Awesome! Glad you got some improvement out of it.
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Old 01-30-2022, 02:31 PM   #9
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Check for electric fan conversion kit?
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Old 02-02-2022, 10:15 AM   #10
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Check for electric fan conversion kit?

I looked into this. There is a company that has a fan that would work, was like 2200$ and draws something like 68amps at full load.



I also looked into building my own shroud and running 2-3 2 speed taurus fans. They will move enough air. It would be ideal to have a fan pulling thru the CAC all the time and radiator only when needed. The packaging and current draw of this makes it not super ideal for our small-ish alternators on the VT365. If we had the dual alternator's like some of the 6.0's/ambulances have, or at least a 200+ amp alt it might be perfect.



I tried an electric pusher fan in front of the AC condenser, hoping it was enough for 90% of the time, but it wasnt. It worked ok until the temps got over 90*, and then it didnt seem to do anything.



I still think the kitmaster 2 speed is the ideal setup, but the EC450 horton is definitely an improvement over the stock viscous setup. Perhaps a bigger electric pusher with the 450 would be a solid option too.
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