Air to Air Transmission Cooler

[fast69mopar]

My truck is a 2014 International 9900i Eagle. I have an ISX-15 with the RTLO-18918B 18 speed trans. I wanted to ask if anyone knew what the part number is for the Air to Air Transmission Cooler that will replace the factory Air to Water Trans cooler? Also, if any of you have performed this specific swap did the new trans cooler come with any hardware? Thanks for the help. Y'all be safe!

[Squish099]

This is the part number for the one on my 06 9900i. 2021064C1, mine is factory air cooled 18 speed

[Rawze]

here is another alternative from an old post...
http://rawze.com/forums/showthread.php?t...3#pid28933

[fast69mopar]

(05-15-2022 )Squish099 Wrote:  This is the part number for the one on my 06 9900i. 2021064C1, mine is factory air cooled 18 speed

Thank you. That is the stock part number I was trying to find and @Rawze for the conversion. Thanks guys!

[Lonestar10]

Removed water cooler from my 13sp when I bought my 2016 t680 trans stays under 200 at 80,000 running 70mph unless temps get around 100+ then I've seen 210-220 on hard pulls. 450hp-1650tq on the input.

[Rawze]

just throwing in some some fyi's...

The general rule on engine/tranny oils is that it is not until you start reaching 230-F and above, is it considered excessive. Just something to consider / keep in mind.

It is also not always desirable to have the oil temp to always be below 200-F, as it is prone to not being able to drive out moisture nearly as well. Oxidation sets in, requiring more frequent oil changes.