Keeping coolant and transmission temps under control when towing in the summer heat

[mikeyss]

I found pics on ebay. The second picture is the 500w dual setup, looks like one fan is smaller

 

[Doubeleive]

Does the shroud have any numbers on it? If I remember correctly, the 5 blade rimless style has either dual 500w or dual 700 watt motors, and the shrouds have different part numbers.

20895139, which doesn't match what I purchased from the seller and only comes up in a notation in parts for a 2500 and says the motors and blades must be changed. but doesn't say what wattage it is.
the information out there on it is totally bazaar because the shroud has dual 5 blade fans.
one says: SHROUD KIT,ENG COOLING FAN(7/9 FAN BLADES)(USE T/W MOTOR KITS 15780795 & 15780796 AND BLADE KITS 15780793 & 15780794 IF OEM SHROUD IS STAMPED 20895139)
another part says:

Part Number: 15780789
Shroud. Fan. PACKAGE - ENGINE COOLING.
4.8, 5.3, 6.0 & 6.2 LITER 1/2 TON. 6.2 LITER. 7/9 fan blade. Housing or Panels that surround the cooling fan to direct air. Must replace fan blades and fan motors if OEM shroud is stamped 20895139 or 20895140. W/ELECTRIC COOLING FAN. W/HD cooling.

 

[Doubeleive]

can't tell by the motor frame either because on rockauto the 500w and 700w motor frame's are indentical looking
can't tell by the fan blades either they look the same in photos, maybe the rear circular plastic around the motor area is thicker or something? but do not have any to compare.

 

[gooffeyguy]

and to make it even more screwy rockauto say's all these motors are for k5l except the 4seasons, even if they are only 500w
View attachment 345708

Actually the top 3 GM 500w fan motors "exclude" the K5L

 

[Doubeleive]

Actually the top 3 GM 500w fan motors "exclude" the K5L

ya I missed that part lol and corrected my post

 

[Doubeleive]

I wonder how you tell the difference on the fan blades between the 500w and 700w, there is no part number stamped on them

 

[Geotrash]

I wonder how you tell the difference on the fan blades between the 500w and 700w, there is no part number stamped on them

I’ll take a look at the one I have when I get home in a few hours.

 

[Doubeleive]

I’ll take a look at the one I have when I get home in a few hours.

is it a 5 blade? 500w or 700w

 

[1BADI5]

This is becoming quite the task,sorting out what is what

 

[Doubeleive]

This is becoming quite the task,sorting out what is what

indeed I just want the best option and it's hard to figure out without ordering and returning stuff, if the dual 5 blade 700w (2nd design) is better then the 7/9 rimmed (1st design) then that's what I want or vica-versa