Do I Need a Transmission Cooler?

By Mister Transmission

Transmission coolers help to protect your transmission when you turn up the heat.

Transmission Coolers help transmissions deal with the added stress and heat caused by towing boats, trailers and other heavy objects.

Each year, hundreds of thousands of automatic transmissions fail and the majority of them are due to overheating of the fluid.  Most of this overheating is due to today’s vehicles being engineered with downsized engines and transmissions in an effort to maximize fuel economy.  We demand the same or better performance from these smaller, more efficient powertrains, therefore they must work harder than ever before.

For the same reason, the addition of an auxiliary transmission fluid cooler isn’t just necessary for those who tow trailers anymore.  Many manufacturers are now also recommending the addition of a transmission cooler if you carry extra passengers or cargo (ie – vacation, car-pool), drive in stop-and-go traffic, drive in hot or very cold weather, or climb steep inclines.  This would likely be 90% of your customers, just as the above statistic would indicate.

Due to the extra strain placed on today’s vehicles, automatic transmissions require a lot from a transmission fluid.  The fluid must lubricate the moving parts, clean the interior surfaces, protect against corrosion, transmit energy, and most of all, cool the transmission.

When an automatic transmission’s temperature exceeds 200F, the transmission fluid is pushed to its limits. Overheated transmission fluid will break down causing seals to crack, moving parts to clash, and leaks to occur.  At Mister Transmission, we offer our own brand of high-quality transmission fluid coolers (also available at Canadian Tire) and the expertise to install them properly.

Mister Transmission’s aluminum-construction, transmission fluid coolers are among the best in the business.  Our coolers offer maximum heat dissipation by constantly swirling and agitating the fluid as it flows through, and with the addition of our thermostatic flow control we ensure that your customer’s transmission maintains the ideal temperature for shiftability and long-life.

There are many areas under the hood of a modern automobile where you could install a transmission cooler, but there’s really only one location where you will get the full 100% cooling efficiency.  You want to install the transmission fluid cooler in front of all other heat exchangers (ie – radiator, a/c condenser, etc) and in an area with good incoming airflow.

For every 20F degree drop in transmission fluid temperature, you can expect to extend the fluid and equipment life, thereby extending the life of the vehicle.  That’s why it is very important to have a quality transmission cooler, and more importantly, to have it professionally installed.

Mister Transmission recommends offering transmission fluid coolers to all of your customers since this would not only decrease the likelihood that they may suffer a premature transmission failure, benefiting both your customers and your business.  To ensure proper application and function of your customer’s transmission fluid cooler, we recommend you allow the experts at Mister Transmission to install it for you.

If you are interested in having a transmission cooler installed in your vehicle, please contact your local Mister Transmission and book an appointment for our FREE 21-Point Multi-Check Inspection.

Want to know more?
Visit one of our locations

image-reviews image-reviews
Customer Reviews
The people at Mister Transmission...
Randy Mazak
The people at Mister Transmission at exeter rd in london were curtious very experienced and met the time line they set out. I would recommend this dealership to anyone.
Date: May 3, 2025
Website: Google
Knew how to fix my...
Lost
Knew how to fix my truck right away without having to replace my transmission. Very knowledgeable and friendly service I would highly recommend thos place to everyone.
Date: May 2, 2025
Website: Google
Highly recommend Mister Transmission! From...
Raven Nicolay
Highly recommend Mister Transmission! From my first phone call, Dawn was incredibly knowledgeable—she was nearly able to diagnose the issue just over the phone. To confirm, they scheduled me in the same day for a test drive and diagnostic. Chris promptly provided clear options and pricing estimates, ensuring I knew what to expect. Before I left, he confirmed parts availability and even offered a helpful recommendation for a rental car while mine was being serviced.I was relieved to receive good news and that the more affordable repair option was the solution. While it can be a little difficult to get through to them due to how busy they are, they genuinely do their best to respond promptly. When a minor issue came up shortly after, they got me back in right away and resolved it quickly.Thanks again to the whole team for the excellent service!
Date: May 2, 2025
Website: Google
Being a widow I was...
Wendy Langill
Being a widow I was scared to death to have to take my car in to a transmission shop I was so pleasantly surprised to find out that the problem is had was caused by a squirrel and they fixed it quickly and at no charge. Julie was wonderful and I would recommend this shop to anyone that think they have a transmission problem.
Date: May 2, 2025
Website: Google
I would highly recommend them....
Ann Paterson
I would highly recommend them. They were amazing to work with and went over and above to help solve my problem.. Thank you.
Date: May 2, 2025
Website: Google
Knew how to fix my...
Lost
Knew how to fix my truck right away without having to replace my transmission. Very knowledgeable and friendly service I would highly recommend thos place to everyone.
Date: May 2, 2025
Website: Google
Great
Wale Oke
Great
Date: May 2, 2025
Website: Google
Great customer service.very reasonable prices.
Leslie Sheppard
Great customer service.very reasonable prices.
Date: May 2, 2025
Website: Google
Very good service
Fidel De
Very good service
Date: May 1, 2025
Website: Google
Employees were very helpful,Very fast...
Richard Williamson
Employees were very helpful,Very fast and efficient service
Date: May 1, 2025
Website: Google
Featured Services
Transmission Repair

The evolution of transmissions has made these machines and systems increasingly complex. When transmission repairs are required, determining the cause and cure for what ails can be tricky.

Read More
Transmission Technology

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission.

Read More
Transmission Maintenance & Service

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems.

Read More
Mister Transmission Blogs
Recent Blogs
Preventative Transmission Maintenance: 5...
A vehicle's transmission is one of its most critical components, responsible for
Read More
April 30, 2025
Transmission Rebuild Vs. Replacement: Wh...
When a vehicle's transmission begins to fail, owners often face a crucial decision:
Read More
April 23, 2025
Transmission Overheating Causes: How To ...
Transmission overheating occurs when the system becomes too hot to function properly.
Read More
April 16, 2025
Signs Of A Failing Transmission Filter A...
The transmission filter plays a crucial role in keeping the transmission system clean
Read More
April 7, 2025
Manual Vs. Automatic Transmission Mainte...
Your vehicle’s transmission plays a crucial role in keeping your car running
Read More
March 31, 2025
Honda Transmission Replacement Price: Wh...
The cost of replacing a Honda transmission varies depending on the model, year, and
Read More
March 28, 2025
How Much Does A New Transmission Cost? A...
A vehicle’s transmission is one of its most crucial components, responsible for
Read More
March 24, 2025
Cheap Transmission Repair Services: Wher...
Transmission repair costs can be high due to the complexity of the system. Unlike
Read More
March 7, 2025
How To Find The Best Transmission Repair...
A vehicle's transmission is one of its most crucial components, ensuring smooth gear
Read More
February 28, 2025
Automatic Transmission Slipping Issues: ...
Automatic transmissions are crucial components of modern vehicles, allowing smooth
Read More
February 21, 2025