transmission cooler

[Evan_m]

What is the best aftermarket cooler that mounts behind the grill?
I am looking for one that i can buy as a kit and just pop it in?

[Hank]

What are you driving? 6.0l is a good upgrade for a 7.3. Right now I am runinng (2) stock 7.3 collers on mine. Seems to do well. hope to upgrade to one 6.0 cooler when I find one priced right.

[PSDfan99]

The cooler out of a v-10 equipped truck is a great cooler and it's a direct bolt in. Pull your tranny cooler out and bolt in the new v-10 one and go. The 6.0 cooler is good too but it's far from a direct bolt in.

Fit and finish with the v-10 one is perfect.

[Evan_m]

Its a 2002 7.3
It got too hot when i was pulling 14000lbs of squash up a super steep hill road

[CUMMINS_KILLA99]

Originally Posted by PSDfan99

The cooler out of a v-10 equipped truck is a great cooler and it's a direct bolt in. Pull your tranny cooler out and bolt in the new v-10 one and go. The 6.0 cooler is good too but it's far from a direct bolt in.

Fit and finish with the v-10 one is perfect.

diesel site carries these for a good price way cheaper than a 6.0

[gygers]

I run a Tru cool 40k inline w/ my stock cooler. Have never seen above 190 degrees with a load of 10,000 lbs. Probably going to run this set up until I have my trans rebuilt then I will go with the 6.0 or V-10 cooler.

[NCHornet]

History Lesson, the V10 cooler was the mod to do before the 6.0's came out. The one Dieselsite sells is the same cooler as the V10 as far as size goes but it lacks the mounting tabs to bolt right in, you must use long zip tiese or make your own brackets. The 6.0 is a direct bolt in replacement cooler!!!! The only modification is simply changing the lines from 1/2" back down to 3/8" , this is accomplished with a few parts from any hardware store. The 6.0 cooler is the largest cooler you can use, and heat is death to a auto trans that is the cooler I would recommend, especially for the loads you are pulling. I just towed my 9500lb TT up a steep mountain, the climb was several miles long and I was getting on it hard, ambient temps were mid 80's and the warmest my trans ever got was 150. It's times like these you are glad to have the 6.0 cooler. If you run coolers in series like Hank did above, make sure you do a flow test, you want to see 1 quart every 30 sec min, with 1 quart every 15 sec is ideal. I hope this clears some things up for you. Be real careful about using a used cooler.

NCH

[SuperCrutyPS]

^^^ 100% agree!!!

After installing the 6.0L cooler, temps dropped a LOT!!
BEFORE: Pulling my 12K 5th wheel at temps around 90, 10% grade - I easily pegged my tranny temp gauge. The top temp shows 250*.
AFTER: Same trailer, same route to RV Park, approximately same temps, tranny temps didn't get above 180*.

See the difference:


6.0L - 31 rows
7.3L - 9 rows

[Chunkspowerstroke]

I would go with a 6.0 tranny cooler

[InExactAxis]

Question about the 6.0 cooler, I am having a shop put it on for me. I know on the stock 6.0L the cooler is mounted behind the Air conditioner condenser. Is that how you’re supposed to mount it on the 7.3 or does it matter?

Mounting the cooler on the front of the condenser going to hurt anything?