Originally Posted by cadillackid
what does it go to? is it the power steering fluid cooler for the rear fan? I always thought that CAT oil coolers are built on the side of the engine. (at least the 3126 are but maybe the older 3116s are different )
There are two, one for the transmission the other for power steering/hydraulic fan.
My 3116 has one on the engine, he has an 8.3 Cummins, not sure about his engine oil cooler.