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Old 05-28-2013, 06:20 PM   #1 (permalink)
Davis
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Fan Clutch ?

I think my fan clutch is in need of replacement after 166,000 miles on the original . I made a trip towing my travel trailer and going up some steep grades it would engage too late like after the 210 deg mark but once it engaged the temps would cool down. So I figure it would not hurt to replace it since summer has begun here where I live in the south.

Who makes the best fan clutch for the 6.5 ?? Or is it better to buy another GM/AC Delco part ?

I have read about some of the vendors that have fan clutches that are supposed to engage earlier than the stock ones . Any insight on the best one would be appreciated. Thanks
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Old 05-28-2013, 06:35 PM   #2 (permalink)
Big Bertha
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Kennedy who is a site sponsor sells a fan clutch that ingages earlier and if you search Hayden fan clutch you will find the part number of the Hayden that is heavy duty.
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1996 K3500 Dually (f code)
-GEP motor with ARP head studs
-HX40 compressor wheel,HX35 CHRA 14cm2 with a peninsular intake
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--4An fuel lines from tank to IP
-Pre and post LP filters, Walbro FRC 10
-Pillar gauges, battery mod, upgraded GP wires
-Braided oil cooler lines, PMD in bumper
-New IP
-S&B CAI,20" 9 blade fan
-223,000 miles
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Old 05-28-2013, 07:11 PM   #3 (permalink)
Davis
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Quote:
Originally Posted by Big Bertha View Post
Kennedy who is a site sponsor sells a fan clutch that ingages earlier and if you search Hayden fan clutch you will find the part number of the Hayden that is heavy duty.

Hi, I see you are running a 20" 9 blade fan how do you like it over the stock fan ?
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1994 Chevrolet Crew Cab dually 3500 2WD 6.5td,auto,guages,banks exh.,Heath chip,Heath turbo master
1998 Chevrolet Suburban 2500 2WD 6.5td,bone stock (SOLD)
2004 Chevrolet Suburban 1500 5.3L 2WD loaded w/all the goodies
1991 Airstream Excella 1000 34ft tri-axle
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Old 05-28-2013, 07:11 PM   #4 (permalink)
algallop
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I have been wondering about this, too. I think kennedy's clutch goes for about $250, which seems a little steep. I'm sure Heath will sell you one for even more than that. Rockauto has a Hayden for $120 (part #2831), which seems like a pretty good deal if it will do the job. Anyone had any experiences with this particular model?
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Old 05-28-2013, 07:16 PM   #5 (permalink)
Big Bertha
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Quote:
Originally Posted by Davis View Post
Hi, I see you are running a 20" 9 blade fan how do you like it over the stock fan ?
Stays cool while pilling through the mountains.
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Derek-
1996 K3500 Dually (f code)
-GEP motor with ARP head studs
-HX40 compressor wheel,HX35 CHRA 14cm2 with a peninsular intake
-Diamond eye exhaust
-All new accessories at 204,00
--4An fuel lines from tank to IP
-Pre and post LP filters, Walbro FRC 10
-Pillar gauges, battery mod, upgraded GP wires
-Braided oil cooler lines, PMD in bumper
-New IP
-S&B CAI,20" 9 blade fan
-223,000 miles
.
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Old 05-28-2013, 07:49 PM   #6 (permalink)
edzzed
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I have the hayden 2839. http://www.ebay.com/itm/Hayden-2839-...78bbd3&vxp=mtr I never had any overheating issues with either stock or hayden. Just felt it was time to change it and yes, I have the dmax plastic fan (see sig for part #)
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Old 05-28-2013, 08:05 PM   #7 (permalink)
red_1995_k2500
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I will post up later with all of my cooling upgrade part numbers and where to buy them for about 1/3 of what Kennedy and Heath sell them for, right now I'm on my way out the door to pick my wife up from work and run some errands.
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Truck upgrades include Diamond Eye 4 inch exhaust using a stainless ATS muffler and stepped stainless band clamps, Flowmaster crossover pipe, LS oil cooler lines, 93 lift pump, gm-8 turbo, k47 air box, 99 water pump, Kodiak fan clutch, Duramax plastic cooling fan, Auto Meter mechanical EGT and Boost gauges, and likely forgetting a few things. And recently installed the Heath Max E-torq.

Also has new Delco glow plugs, Ted's rebuilt injectors, all new front and rear lights, and matching truck shell.

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Old 05-28-2013, 10:21 PM   #8 (permalink)
Freddyack
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Quote:
Originally Posted by red_1995_k2500 View Post
I will post up later with all of my cooling upgrade part numbers and where to buy them for about 1/3 of what Kennedy and Heath sell them for, right now I'm on my way out the door to pick my wife up from work and run some errands.
That would be great! I just bought the Duramax fan and am about to get a new fan clutch.
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Lots of problem solving information in the 6.5L FAQs 6.5L Parts List Here No Start Check List Here Grounds - Essential Maintenance, Solves A Lot of Here

1994 Suburban "C"2500, 28X,XXX Miles & Counting...
Lubrication Specialist Oil Cooler & Lines
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Dmax Fan & Hayden HD Fan Clutch
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Old 05-29-2013, 11:44 AM   #9 (permalink)
HeavyChevy95
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I'd check the accuracy of the temp gage before sweating it
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Old 05-29-2013, 01:50 PM   #10 (permalink)
Steve83
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Mine was locked (always engaged) when I got the truck, so I eventually bought a new
ACD clutch from Amazon ACD clutch from Amazon
, and even with the stock fan towing or hauling ass in the Memphis heat, mine runs just below 210 (confirmed by ScanGauge) all the time. A/C works great, too.
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