Understanding Transmission Cooler

Understanding Transmission Cooler

Most cars have some form of radiator-mounted transmission cooler that aids in providing sufficient cooling for everyday drive and keeps the transmission from overheating. To be extra safe or in specific situations, many vehicle owners will think about installing an auxiliary transmission cooler (also known as a transmission oil cooler).

transmission cooler

Similar to your engine, your transmission needs to operate at the proper temperatures, which, when your car isn’t carrying anything substantial, are typically between 175-200 degrees Fahrenheit. It requires a cooling system that functions similarly to your engine as a result. Hot transmission fluid must be circulated and cooled before being reintroduced into the system as it passes through the transmission.

This is why in this article, I’ll be discussing the transmission cooler as the following will be discussed:

  • What is a transmission cooler?
  • What are the functions of a transmission cooler?
  • Where is the transmission cooler located in a car?
  • How does a transmission cooler work?

Let’s get started!


What is a transmission cooler?

The transmission cooler is a built-in feature of modern automatic transmission automobiles. This important component’s failure can cause a number of transmission problems. Because of this, it’s a good idea to become familiar with the signs of a faulty transmission cooler and be alert for any issues.

To improve the functionality and longevity of your vehicle’s transmission system, companies provide a variety of transmission coolers and transmission cooler kits. To provide effective cooling and ideal fluid temperature regulation, these transmission coolers are skillfully designed and built from premium materials.

The majority of transmission cooler kits offer a complete solution, including all the required parts for a simple installation. The transmission cooler itself, mounting brackets, hoses, fittings, and installation instructions are frequently included in these kits. These transmission cooler kits are made to fit a variety of car models, guaranteeing that they are properly compatible and fitted.

What are the functions of a transmission cooler?

When pulling a lot of weight, traveling fast, or in hot weather, a transmission cooler is necessary to keep the transmission fluid at the right temperature. The transmission coolers made by Mishimoto are intended to remove extra heat generated by the transmission fluid, reducing overheating and assuring a dependable and smooth operation.

The main reason for transmission failure is too much heat. As a result, one of the most crucial parts of your car’s transmission is a transmission cooler. So, what exactly is a transmission cooler and how does it operate? The primary function of a transmission cooler, as its name suggests, is to lower the temperature of transmission fluid since increased strain from towing or carrying high loads leads it to produce more heat.

  • The automatic transmission uses the transmission cooler as a little radiator. It functions very similarly to how the radiator for the engine does.
  • It is in charge of cooling and circulating the transmission fluid.
  • Through a metal line, hot transmission fluid is discharged from the tranny. This warm fluid moves into the cooler, where it cools. The fluid returns to the transmission through another line after the heat has been removed.
  • The transmission cooler makes the tranny efficient and ensures peak performance.
  • It enables more seamless gear shifts and contributes to the transmission’s longer lifespan.

Lastly, Transmission coolers are used to transfer heat in order to keep the temperature optimal. On the other hand, if your transmission cooler isn’t working properly, your transmission can overheat and require pricey repairs or replacement. These transmission cooler failure warning signs will enable you to identify any issues early and address them before they escalate in cost.

Where is the transmission cooler Located?

The radiator of an automobile contains the transmission coolers. The cooling system can assist in controlling transmission fluid temperatures in this way.

In addition to the radiator, the transmission cooler can also be exterior, however, this is less frequent now. These are most frequently seen in big vehicles or SUVs. Another popular aftermarket modification is the externally mounted gearbox cooler, which ensures greater ventilation and cooler temperatures.

If your transmission is cooled by coolant, your car may additionally be equipped with a transmission cooler on the transmission itself. Heat exchanger is another name for this kind of cooler.

Watch the video below to learn about transmission cooler


In conclusion, a transmission cooler is a vital part of a car that is vital for preserving the longevity and best performance of the transmission system. It not only increases the lifespan of your transmission but also enhances overall driving safety and efficiency by decreasing heat buildup and preventing overheating. The installation of a high-quality transmission cooler and routine maintenance will greatly increase your car’s dependability. To make sure you get the greatest transmission cooler option for your car’s unique needs, take into account variables like size, compatibility, and economy while looking at your selections. Making transmission cooling a top priority will save you money on repairs and prolong the life of your car.


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