Do You Need a Transmission Cooler?

September 30, 2019 | By Mister Transmission

Do You Need a Transmission Cooler?

Overheating is like kryptonite for your transmission. Transmissions work best when they can stay cool. (“Cool”, not cold. In winter, transmissions can take time to warm up.) But the engine block gets hot and this can heat the transmission. Furthermore, there are transmission problems that can interrupt your transmission’s normal cooling mechanisms and cause it to overheat. All of this begs the question: do you need a transmission cooler?

Transmission Temperature

Transmission fluid is tasked with regulating your transmission’s temperature as well as lubricating parts of it. The healthy range of temperature for transmission fluid is about 71 to 93 degrees Celsius. If your transmission fluid exceeds this temperature, it will begin to burn. This is bad. Not only can burnt fluid not effectively cool your transmission, it can actively damage it, even after is has cooled down.

Clearly, overheating your transmission and thus your transmission fluid is something to be avoided. But how can you avoid it? Well, most transmissions when operating under normal conditions will not exceed this range, even on long drives. But a malfunctioning transmission? There’s no telling. This is why you must get your transmission inspected at the first sight of trouble. Don’t let leaks, whirring noises, or grinding go ignored. Bring your vehicle into a Mister Transmission repair shop as soon as you notice any problems. Furthermore, don’t put any undue stress on your transmission. Drive responsibly and easy.

Transmission Coolers

If you drive a truck or other form of vehicle for work that involves towing, then you’re in danger of overheating your transmission. Just like walking back from the grocery store with all your shopping will make you hot and sweaty on an otherwise temperate day, towing heavy loads will overheat your transmission. Likewise, if you’re planning on a long road trip with a lot of stuff in your car, you could also be at risk of overheating your transmission.

In such instances as described above, you should consider installing a transmission cooler. A transmission cooler is a component that you can add on to your transmission that, big shock here, cools your transmission. It does so by cooling heated fluid that is sent through it by using the air flowing over the fins of the cooler. The cooled liquid is then sent back to the transmission in a continuous loop.

Installing Transmission Coolers

Transmission coolers are not standard issue. There are different types and sizes of transmission coolers for different types of transmissions and different sizes of vehicle. Your vehicle’s gross vehicle weight rating (GVWR) is key to determining what kind of transmission cooler you need. As is the type of terrain over which you usually drive. Hilly and rocky terrain might require more of a heavy-duty transmission cooler.

The choice of where to install your transmission cooler is also tricky. You could put it just about anywhere you find space. But airflow is key; you want to install it where it will experience the most airflow and thus be the most effective.

Mister Transmission

The experts at Mister Transmission can recommend whether or not your vehicle needs a transmission cooler, what kind of transmission cooler, and can install it for you. To learn more about transmission coolers, please contact us.

Mister Transmission Team

The Mister Transmission team consists of certified transmission specialists with decades of combined experience in diagnosing, repairing, and maintaining automatic and manual transmissions.

With over 60 years of service across Canada, our experts provide trusted, accurate, and up-to-date automotive advice to help drivers make informed decisions about their vehicles.

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Customer Reviews
Great service Knowledgeable technicians Highly...
G Bock
Great service Knowledgeable technicians Highly recommend
Date: July 11, 2026
Website: Google
I had a great experience...
Andrew
I had a great experience at Mister Transmission. They fixed my car quickly and did an excellent job. The manager was professional, helpful, and provided great customer service throughout the process. I would definitely recommend them to anyone looking for reliable transmission service.
Date: July 10, 2026
Website: Google
I had my transmission rebuilt...
Luis Zon
I had my transmission rebuilt at Mister Transmission and had a great experience from start to finish. The staff at the front desk were friendly, professional, and kept me updated throughout the process. The turnaround time was faster than I expected, and the pricing was fair for the work that was done. My vehicle is running great now, and I'm really happy with the quality of the repair. I would definitely recommend Mister Transmission to anyone needing transmission work.
Date: July 10, 2026
Website: Google
I brought my vehicle to...
Josh
I brought my vehicle to Mister Transmission for a transmission rebuild, and I'm glad I did. The team was easy to deal with, and the front desk staff made the whole process straightforward. They explained everything clearly, finished the job in a reasonable amount of time, and the price was better than I expected. My vehicle shifts smoothly now, and I have confidence in the work they did. I wouldn't hesitate to bring my vehicle back or recommend them to others.
Date: July 10, 2026
Website: Google
I was looking for a...
LucianoDelarosa123
I was looking for a shop I could trust to rebuild my transmission, and Mister Transmission delivered. Everyone was welcoming and professional from the moment I walked in. They kept me informed while my vehicle was being worked on, finished it on time, and the cost was reasonable. After driving it for a while, everything feels smooth and the vehicle is running the way it should. Overall, it was a positive experience, and I'd recommend them if you need transmission repairs.
Date: July 10, 2026
Website: Google
I had a great experience...
Andrew
I had a great experience at Mister Transmission. They fixed my car quickly and did an excellent job. The manager was professional, helpful, and provided great customer service throughout the process. I would definitely recommend them to anyone looking for reliable transmission service.
Date: July 10, 2026
Website: Google
Great service and very a...
Jan Waite
Great service and very a great price thank you
Date: July 10, 2026
Website: Google
I was looking for a...
LucianoDelarosa123
I was looking for a shop I could trust to rebuild my transmission, and Mister Transmission delivered. Everyone was welcoming and professional from the moment I walked in. They kept me informed while my vehicle was being worked on, finished it on time, and the cost was reasonable. After driving it for a while, everything feels smooth and the vehicle is running the way it should. Overall, it was a positive experience, and I'd recommend them if you need transmission repairs.
Date: July 10, 2026
Website: Google
I had a noisy whining...
Steve Gard
I had a noisy whining noise coming from the drivetrain of my truck and needed to find a shop to inspect it promptly. I quickly found out that there were not many places I could go to in my area. One place suggested Mr Transmission would be a good place to get it looked at. I drove in spoke with the manager, Chris Guziak who had his employees take it for a test drive and then into the shop for inspection afterwards.It was discovered that it was a front differential spline bearing. I had recently purchased the truck which had an active warranty still on it. Chris promptly made out a repair estimate and with some patient negotiations with the warranty company finalized the coverage of the repair costs. Then settled on a date to get the parts & have the truck repaired. After leaving the the truck first thing in the morning, Chris sent me a message at 1:45pm to tell me the repairs had been completed! I was very pleased overall with their expedient, professional service. 🙂
Date: July 10, 2026
Website: Google
Mister Transmission was excellent in...
Catherine Myslicki
Mister Transmission was excellent in diagnosing and addressing the issue in record time. Thank you for your efficiency and service.
Date: July 10, 2026
Website: Google
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