RPO code for Transmission cooler

[Shaw520]

Im at work and ordering transmission filter/pan gasket and Im going to ad a transmission cooler, IF there isnt a factory one there already. I have a digital img of my RPO sticker in my phone, does anyone know what the code would be IF I have one ? (2004 Z71 Tahoe 5.3)

thank you

 

[Shaw520]

Found it,... The RPO Code for External Transmission Cooler is; (KNP),... and yes I DO already have one installed,.. apparently if you have the factory tow package, you have the external trans cooler.

 

[swathdiver]

Do you actually see one attached to the A-shaped bracket in front of the condenser?