01 Suburban Transmission Oil Cooler

Is there any way to find out if my 2001 Suburban came equipped with a factory transmission oil cooler? It has the towing package, but I don't know if that includes the cooler. Thanks.

This is an old message but I went through this subject when I recently bought a Surburban without the trailer package.They all have transmission coolers yours is the so-called heavy duty one that comes with the trailer towing package. Mine didn't so I plan on adding an after market one this spring.
janman