Nv4500 cooler?

[brianjbeach85]

Is the Nv4500 trans cooled? like external or internal cooler? when i got my 12v it had the auto cooler on it... pretty rusted and beat up, so do i keep it or is there some other cooling source for the nv4500?

 

[OrangeNV]

no cooling source needed for the nv4500

optional finned pto covers are available, but i deem them not needed unless you towing a whole lot

 

[lorendiesel5.9]

You would be surprised how hot they get just driving empty. Ask Cumminsfever on here aka george the monkey he ran a temp gauge in one for awhile and I'm thinking he said they get upwards of 270* real quick.

 

[Cumminsfever]

Cruising temps on empty truck were 215 - 220 @ 70mph.
Synthetic oil, 373 gears.
My solution for towing is a pump, filter, and a cooler.

 

[Smoken Gun]

Why specifically do the NV4500's get so toasty? The iron case? Does the gears messing cause that much heat build-up?

Anyone have temps for the NV5600? Just curious.

Now im wonder what temps say a 18 speed RoadRanger seeing towing 80K.

 

[schueller74]

Now im wonder what temps say a 18 speed RoadRanger seeing towing 80K.

Those RR transmissions have coolers on them some water cooled some oil cooled. I just went on the lot truck just pulled in, heat gun read 205*F .

 

[thebullet83]

the bearings probably contribute the most heat to the equation.