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How many quarts does a 6.7 powerstroke transmission take?

The transmission on a Ford 6.7 Power Stroke can require roughly 15 to 22 quarts of fluid, depending on the exact transmission model and year. A standard drain-and-fill with a new filter typically uses about 15–18 quarts, while a full system refilling (including the torque converter) can approach 20 quarts or more.

To understand why the number varies, it helps to know which transmission is paired with the 6.7 Power Stroke in your truck. The 6.7 Power Stroke has been paired with more than one automatic transmission across different model years, which changes the total fluid capacity needed.

Transmission options and their capacities

Below is a breakdown of typical fluid capacities by transmission type commonly paired with the 6.7 Power Stroke.

6R140 — 6-speed automatic (2011–2016)

This early heavy‑duty automatic uses a substantial amount of fluid, with typical totals around 18–20 quarts for a full fill that includes the torque converter. During a standard pan drop with filter change, you’ll usually replace about 15 quarts, leaving a portion for topping off after the torque converter and lines are considered.

10R140 — 10-speed automatic (2017–present in later Super Duties)

The 10‑speed variant generally requires more fluid overall due to the larger transmission internals. A full system fill is typically in the range of 20–22 quarts, with a drain-and-fill (pan drop) using roughly 17–19 quarts depending on the exact model and whether a torque converter drain is included.

Note: Figures above are typical ranges. Exact capacity can vary by model year, drivetrain configuration, and whether you are performing a simple pan drop versus a complete fluid replacement including the torque converter. Always verify with the specific service manual or Ford’s official specifications for your vehicle.

For precise numbers, consult your owner's manual or a Ford service bulletin for your exact VIN and transmission configuration.

Summary

In short, expect about 15–18 quarts for a standard drain-and-fill on older 6R140 transmissions and about 17–19 quarts or more for a full 10R140 fill on newer trucks. Always confirm with the exact manual for your year and transmission to avoid under- or over-filling.

How many quarts of transmission fluid does a 6R140 take?

The Ford 6R140 transmission has a total capacity of about 16.2 to 17.4 quarts for a full rebuild, but an initial fill after a filter change is typically around 8 to 10 quarts. When changing the fluid, you will need to add a specific amount based on whether you are just changing the filter or doing a complete fluid flush.

This video demonstrates how to change the transmission fluid in a Ford 6R140: 42sFordTechMakulocoYouTube · Apr 17, 2017
Fluid capacity breakdown

Initial fill (with filter change): Approximately 8.28.28.2 quarts. Some sources say up to 101010 quarts.
Total fill (full rebuild): Approximately 16.216.216.2 to 17.417.417.4 quarts.
Service kit (filter, pan gasket, and fluid): Kits often come with 101010 quarts of fluid, which is usually the amount needed for a standard service.

Important considerations

Fluid type: The 6R140 transmission requires MERCON LV Automatic Transmission Fluid (ATF).
Service vs. rebuild: The difference in capacity is because a simple service only replaces the fluid in the pan, while a complete rebuild also includes the fluid in the torque converter and cooler lines.
Deep transmission pans: Aftermarket deep pans can significantly increase fluid capacity, with some adding as much as 777 quarts to the stock pan.
Transfer case: The transfer case on many vehicles with the 6R140 transmission holds approximately 222 quarts of the same fluid.

You can watch this video to see what a Ford 6.7L Powerstroke 6R140 transmission looks like: 40sMed Tec67YouTube · Jan 31, 2021

What kind of transmission fluid does a 6.7 Powerstroke take?

The 6.7 Powerstroke transmission fluid type depends on the model year, but generally requires either Motorcraft MERCON LV for 2011-2019 models (6R140 transmission) or Motorcraft MERCON ULV for 2020-2025 models (10R140 transmission). It is crucial to use the correct fluid as recommended by the manufacturer, and other fluids could cause damage.

This video demonstrates the process of a transmission fluid change for a 6.7 Powerstroke, including tips for replacing the filter and cleaning the pan: 1mDon SmithYouTube · Apr 5, 2016
2011-2019 6.7L Powerstroke (6R140 Transmission)

Fluid Type: Motorcraft MERCON LV Automatic Transmission Fluid (XT-10-QLVC)
Specifications: WSS-M2C938-A

2020-2025 6.7L Powerstroke (10R140 Transmission)

Fluid Type: Motorcraft MERCON ULV Automatic Transmission Fluid

Important considerations

Use the correct fluid: Always use the specific fluid recommended for your truck's model year to avoid transmission damage.
Transfer case fluid: The transfer case on these trucks typically uses MERCON LV fluid.
Check your owner's manual: Refer to your owner's manual for the most accurate and definitive information for your specific vehicle.

How much transmission fluid does a 6.7 powerstroke take?

A 6.7L Powerstroke transmission typically holds between 16.3 and 18.2 quarts of fluid, depending on the year and specific transmission (6R140 or 10R140). A standard drain and refill with a filter change requires less fluid, around 7 to 10 quarts, because not all the old fluid can be removed from the torque converter and cooler lines.
Fluid capacity by transmission type

6R140 (Six-speed, 2011-2019): Total capacity is about 17.4 quarts, but a typical drain and refill requires approximately 7–10 quarts.
10R140 (Ten-speed, 2020-2025): Total capacity is about 18.2 quarts, though a drain and refill will be less.

Important considerations

Total fill vs. drain and refill: The total capacity is the amount of fluid the transmission holds when completely empty. A standard service will not remove all the old fluid, so you will need less.
Fluid type: Use the fluid specified for your truck's model year, such as Mercon LV for the 6R140 or Mercon ULV for the 10R140.
Safety first: Always refer to your owner's manual for the most accurate information and follow all safety precautions when working on your vehicle.

How much transmission capacity does a 2017 f250 6.7 have?

Automatic transmission: 16.7-17.4 quarts for the 2011-2016 models and 17.4 or 18.1 quarts for 2017-2020.

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.