Ford F150 Transmission Cooler Lines

The Ford F150 is equipped with transmission cooler lines that help to keep the transmission fluid cool. These lines are made of rubber and run from the radiator to the transmission. The hot fluid from the engine passes through these lines, where it is cooled by air passing over them before entering the transmission.

This helps reduce heat buildup in the system, which can cause premature wear on internal components and even lead to catastrophic failure if left unchecked. If you notice any leaks or cracks in your cooler line, have a mechanic inspect and replace them as soon as possible to prevent costly repairs down the road.

The Ford F150 is an iconic pickup truck known for its toughness and reliability. One of the components that helps keep it running smoothly is the transmission cooler lines. These special fluid lines help to cool down your transmission, allowing it to run more efficiently and last longer.

With proper maintenance, these lines can ensure that your Ford F150 runs like a dream for many years to come!

Attention 2009-2014 Ford F-150 Owners! Check Your 6R80 Transmission Cooler Lines Before They Blow!

How Much Does It Cost to Replace Transmission Cooler Lines?

The cost of replacing transmission cooler lines will vary, depending on the make and model of your vehicle, as well as the type of transmission cooler line you need to replace. Generally speaking, it can cost anywhere from $50 to $400 for parts alone. Labor costs range from about an hour at a shop rate of around $90 per hour up to four or five hours at a higher shop rate.

The total cost for these replacement services can range from approximately $140 -$1000+, depending on vehicle type and complexity.

How Serious is a Transmission Cooler Line Leak?

A transmission cooler line leak can be a very serious issue. If left unchecked, the oil from the leaking line could cause a decrease in fluid levels and lead to overheating of the transmission, ultimately leading to damage or complete failure of the system. In addition, if it is an external leak, oil could come into contact with other parts of your vehicle, potentially causing further damage or even fire hazards depending on where it pools.

It is important to take any kind of transmission cooler line leak seriously and have it serviced as soon as possible by a qualified mechanic.

Which Transmission Cooler Line is Which?

In most vehicles, the transmission cooler lines are easy to identify. The larger of the two is usually referred to as the input line, and it supplies fluid from the vehicle’s transmission to the external cooler. The smaller line is typically referred to as the return line, and it returns cooled fluid back into the transmission after passing through an external heat exchanger.

To ensure proper operation of your vehicle’s cooling system, make sure that these lines are connected securely with no leaks present.

What Size are Ford Transmission Lines?

Ford transmissions come in a wide variety of sizes, ranging from the smaller 4R70W transmission to the larger 5R110W. The 4R70W is generally found in Ford vehicles with V8 engines and is designed for use in light-duty applications. This transmission has an input shaft diameter of 1.375”, a spline count of 19, and a torque rating up to 440 ft-lbs.

The 5R110W on the other hand is built for heavy-duty applications such as tow trucks or large cargo vans. It has an input shaft diameter of 2”, a spline count of 24 teeth, and can handle up to 600 ft-lbs torque capacity.

Ford F150 Transmission Cooler Lines


2014 Ford F150 Trans Cooler Lines

The 2014 Ford F150 is equipped with a transmission cooler line that helps to keep the truck’s transmission from overheating. The lines are designed to move heat away from the engine, allowing it to stay cool and running smoothly, even under heavy loads and extreme temperatures. Additionally, these lines can also reduce wear-and-tear on your vehicle by helping keep your fluids at their proper operating temperature for longer periods of time.

Ford F150 Transmission Line Diagram

The Ford F150 transmission line diagram is a useful tool for anyone looking to repair and rebuild the vehicle’s transmission system. The diagram provides an easy-to-understand visual representation of the various parts of the system, including their location and function. It also outlines all components that need to be replaced in order to restore optimal performance.

With this information, mechanics can easily identify any issues with their truck’s transmission and make necessary repairs or replacements quickly and efficiently.

2013 Ford F150 Transmission Cooler Lines

The 2013 Ford F150 was equipped with a transmission cooler line system that was designed to help keep your vehicle’s transmission running smoothly. The lines were constructed using high-grade aluminum, which is resilient and able to withstand extreme temperatures. This ensures the durability of the parts and helps ensure proper performance from your truck’s engine for years to come.


In conclusion, the Ford F150 transmission cooler lines are a great way to provide your vehicle with better cooling capabilities. Not only will they help keep your transmission running at optimal temperatures, but they can also save you money in the long run by preventing costly repairs due to overheating or other issues related to inadequate cooling. As always, it’s important to make sure that all maintenance is performed regularly and that any necessary repairs are completed promptly for maximum performance and protection of your Ford F150.


  • Alex Gearhart

    Alex Gearhart, an automotive expert specializing in transmissions, has over a decade of hands-on industry experience. With extensive knowledge in manual and automatic systems, Alex is passionate about educating car enthusiasts on vehicle maintenance. As the chief author at, Alex simplifies complex concepts for readers, helping them make informed decisions about their vehicles. Outside of work, Alex enjoys road trips, restoring classic cars, and exploring new automotive technologies.

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