6r140 Transmission

The Ford 6R140 is a 6-speed automatic transmission that was introduced in 2011 and is primarily paired with Ford’s Super Duty trucks, particularly those equipped with the 6.7 Powerstroke diesel engine. This transmission is designed for heavy-duty applications, offering robust performance to handle the high torque outputs of the diesel engine while also being more efficient than previous automatic transmissions.

Here are some key features of the 6R140 transmission:

1. Torque Capacity:

• The 6R140 is built to handle the extreme torque of Ford’s heavy-duty trucks, with a torque rating of up to 1,000 lb-ft. This makes it ideal for towing and hauling heavy loads.

2. Electronic Control:

• The transmission uses electronic controls for more precise shifting, adapting to driving conditions, load, and performance requirements. This contributes to better fuel efficiency and smoother driving.

3. Transmission Cooler:

• It features a separate transmission cooler to help keep temperatures under control, which is especially important when towing or driving in demanding conditions. Overheating can be a concern in heavy-duty trucks, so this system helps maintain reliability.

4. Gear Ratios:

• The 6R140 has well-spaced gear ratios to provide a good balance between towing performance, off-the-line acceleration, and fuel economy. This allows the truck to shift smoothly under varying loads.

5. Tow/Haul Mode:

• Like many Ford transmissions, the 6R140 comes with a Tow/Haul mode, which adjusts the shift patterns to enhance towing performance, providing more power when needed and reducing shifting while hauling heavy loads.

6. Heavy-Duty Construction:

• This transmission is designed for durability, with upgraded components such as a larger torque converter and reinforced internals to handle the power demands of the 6.7L Powerstroke.

7. Shift Logic:

• The transmission’s shift logic is designed to optimize performance and fuel efficiency by adjusting shift points based on load and driving style. It also has the ability to downshift aggressively when more power is needed.

8. Applications:

• The 6R140 is most commonly found in Ford F-Series Super Duty trucks (F-250, F-350, F-450) and is paired with both the 6.7 Powerstroke diesel and the 6.2L V8 gas engine.

The 6R140 is a key part of Ford’s strategy to provide superior towing and hauling capabilities in their Super Duty lineup. It’s a reliable, heavy-duty transmission that complements the performance characteristics of the 6.7 Powerstroke.