Why Install Transmission Cooler in Return Line Back To Transmission

Updated 03/04/2021 | Published 03/01/2021

Question:

Hello, my question is about any brand name transmission external coolers especially the tru cool max transmission cooler during installation always run off original factory radiator cooler unless if the vehicle doesnt have one. Care to share a opinion. Best regards

asked by: Bryant J

Expert Reply:

When it comes to transmission coolers, unless you live in an extremely cold climate you can't over cool a transmission. Most vehicles will have a stock transmission cooler, it'll either have a separate heat exchanger or
it'll have a cooling circuit in the vehicle's radiator. This typically does a pretty decent job unless the vehicle is being pushed to its limits by towing near its capacity or in hilly areas. Having the factory cooler act at a pre-cooler and the aftermarket cooler installed inline with the return line back to the transmission offer additional cooling in a very efficient manner.

I'll link you to an article about transmission coolers. I hope you'll find it helpful.

expert reply by: Mike L