Loading

What kind of transmission is 4EAT?

A 4EAT transmission is a type of automatic transmission commonly found in vehicles. It is a four-speed, electronically controlled transmission that provides smooth and efficient power delivery to the wheels.


Overview of the 4EAT Transmission


The 4EAT, or Four-speed Electronically Controlled Automatic Transmission, is a transmission system developed by Subaru. It is designed to provide a balance of performance, fuel efficiency, and reliability in Subaru's all-wheel-drive vehicles. The 4EAT transmission features four forward gears and one reverse gear, with the gear changes controlled electronically rather than mechanically.


How the 4EAT Transmission Works


The 4EAT transmission uses a torque converter to transfer power from the engine to the transmission. It has four forward gear ratios that are selected automatically based on factors such as vehicle speed, engine load, and throttle position. The electronic control unit (ECU) monitors these inputs and selects the appropriate gear to optimize performance and fuel efficiency.


Key Features of the 4EAT Transmission



  • Four Forward Gears: The 4EAT has four forward gear ratios, allowing for a wider range of gear options to match driving conditions.

  • Electronic Control: The gear changes are controlled electronically by the vehicle's ECU, providing smooth and responsive shifting.

  • All-Wheel-Drive Compatibility: The 4EAT is designed to work seamlessly with Subaru's all-wheel-drive systems, providing power to all four wheels as needed.

  • Durability and Reliability: The 4EAT is known for its robust construction and reliable performance, making it a popular choice in Subaru vehicles.


The 4EAT transmission is a key component of Subaru's all-wheel-drive system, providing efficient and responsive power delivery to the wheels. Its electronic control and four-speed design make it well-suited for a variety of driving conditions and applications.

What is the strongest transmission in Subaru?


The 6-speed STI box was designed by Subaru with motorsport in mind. It is by far the best and strongest gearbox Subaru have ever made, and with the highest level of operability. The six-speed gear set is nearly twice the size of the 5-speed and twice as strong.



How long does a 4 speed automatic transmission last?


Manufacturers have determined that the life of the transmission (not the car's, or your, lifetime) is about 150–160K miles without fluid change. If you want your car to last longer than that, or have any value when you go to trade it in, change that fluid.



What Subaru models have transmission problems?


Affected models include:

  • 2010-2015 Legacy.
  • 2010-2015 Outback.
  • 2012-2015 Impreza.
  • 2013-2015 Crosstrek.
  • 2014-2015 Crosstrek Hybrid.
  • 2014-2015 Forester with 2.5-liter four-cylinder engine.
  • 2014-2015 Forester with turbocharged 2.0-liter four-cylinder engine.
  • 2015 WRX 2.0.



What year did Subarus have transmission problems?


Although it is common to have premature transmission failure on some Subaru models built between 2012 and 2017, Subaru had stated that these vehicles had defects in their transmissions when they were manufactured.



Which Subaru has CVT transmission?


Since 2014, the Lineartronic® CVT has been standard in all automatic Subaru models and trims (except the Subaru BRZ).



What transmission is best for towing?


Automatic Transmissions: Automatic transmissions are the most common type of transmission for towing. They offer convenience and ease of use, making them ideal for those who aren't experienced with manual transmissions.



What years did Subaru have CVT problems?


The models and years that were affected mainly by transmission issues are:

  • Crosstrek, 2013 – 2015.
  • Crosstrek Hybrid, 2014 – 2015.
  • Forester (2.0 and 2.5 liter engines), 2014 – 2015.
  • Impreza, 2012 – 2015.
  • Legacy, 2010 – 2015.
  • Legacy 3.6L V6, 2015.
  • Outback, 2010 – 2015.
  • Outback 3.6L V6, 2015.



Is CVT better than automatic transmission?


A CVT is lighter than a traditional automatic, and this, combined with the smoother operation, helps to improve the fuel efficiency of vehicles that come equipped with a CVT. Because of the lack of gearing, it is easier for CVT vehicles to find and maintain an ideal torque ratio as well.



What is 4EAT transmission?


4EAT stands for Four-Speed Electronic Automatic Transmission. This simply means that your vehicle is equipped with an automatic transmission with four gears.



What are the 4 types of Subaru transmissions?


List of Subaru transmissions

  • 1.1 Three-speed. 1.1.1 3AT. 1.1.2 3AT 1st revision. 1.1.3 3AT.
  • 1.2 Four-speed. 1.2.1 ACT-4 or VTD. 1.2.2 4EAT.
  • 1.3 Five-speed. 1.3.1 5EAT.
  • 1.4 Six-speed. 1.4.1 6EATT. 1.4.2 A960E.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.