Transmission cooler

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Aug 14, 2019 | 08:03 AM

jasonguo

Thread Starter

Driver School Candidate

Joined: Nov 2014

Posts: 9

Likes: 1

From: North Carolina

Transmission cooler

Hi, does anyone know if our cars have a transmission cooler or are designed to have one bolt on? I have a 2015 gs350 f sport that I just installed a hitch to tow my motorcycle. It's fairly light duty but I want to be more informed.

Your towing experience is also welcomed.

Thanks,
Jason

Aug 14, 2019 | 08:19 AM

RichardB23

Pole Position

Joined: Apr 2019

Posts: 288

Likes: 79

From: TX - Texas

Sub'd. interested to know as well

Aug 14, 2019 | 10:38 AM

bob256k

Instructor

Joined: Mar 2018

Posts: 1,059

Likes: 275

From: California

Just speculating but i think the GS-F has one; dont see why that cooler wouldn't "bolt-on" to the GS350, as it is the same transmission.

Aug 14, 2019 | 10:41 AM

bob256k

Instructor

Joined: Mar 2018

Posts: 1,059

Likes: 275

From: California

Just looked up the GS-F; it does have a transmission cooler:

https://parts.lexusmontereypeninsula...6410-3514.html

Aug 14, 2019 | 02:31 PM

ItzFilyO

Lexus Test Driver

Joined: Feb 2013

Posts: 5,822

Likes: 1,062

From: California

Yes both GSF and RCF has it.

Aug 16, 2019 | 08:46 PM

robd88

Pit Crew

Joined: Jun 2014

Posts: 192

Likes: 70

From: IL

To answer your question, the GS350 (which you have) regulates the transmission temperature through a heat exchanger shared with engine coolant. So yes it has a cooler, but not the traditional air cooled transmission oil cooler you would see behind the bumper.