Oil coolers, standard or option?

[tom3]

Looking at the RPO codes on our 2019 and I see KC4 and KNP for engine and transmission coolers. Are these standard equipment on most Tahoes or an extra cooling deal. This a 5.3 4x4 and 6sp with trailering package but a 3:08 gear.

 

[drakon543]

the transmission cooler used to only be part of the tow package. oil cooler as a standard was a thing since atleast the 90s

 

[tom3]

Thanks. I had looked all over for a cooler add on and didn't actually find one so I suspected it was the standard deal. Been looking for the lower temp transmission thermostat but it's out of stock or on backorder everywhere that I've looked.

 

[the 18th letter]

the transmission cooler used to only be part of the tow package. oil cooler as a standard was a thing since atleast the 90s

Good to know. So it's not actually anything heavy duty as advertised? I felt good reading all the heavy duty stuff on the original sticker and then disappointed on all the transmission issues these trucks have despite the "heavy duty" branding. Surprised theres no class action lawsuit in progress since it seems to be consensus that you'll be replacing the tranny at some point. More when than if