New details on the 2021 F-150 pickup truck from Ford (F) have emerged along with a video of the heavily camouflaged vehicle spotted hauling a trailer during testing.

Now in its fourteenth generation, the F-150 pickup truck is expected to have some big changes for model year 2021, especially to the powertrain.

According to Ford Authority, the F-150 will no longer be powered by the 5.0-liter Coyote V8 and will now feature a smaller 4.8-liter engine that is anticipated to have a rating of 420 horsepower and 420 pounds-per-feet of torque. This is an increase from the 5.0-liter’s 395 horsepower and 400 pounds-per-feet of torque.

The increase in horsepower and torque is expected to come with better fuel economy as the news outlet reported that with the 5.0 liter V8 the F-150 currently offers 23 mpg on the highway, 17 mpg in the city, and 19 mpg combined in the rear-wheel-drive models.

The 4.8-liter powertrain, however, will reportedly be mated to the same 10-speed automatic transmission.

Ford was seen testing the new F-150 in Colorado in the mountains, according to a video posted by TFLnow on YouTube.

Ford is expected to launch the 2021 F-150 as a 2021 model sometime in 2020.

Shares of Ford stock were down 0.51 percent as of 2:27 p.m. ET on Tuesday.

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Ford F-150 pickup trucks are seen on a sales lot on May 10, 2018 in Miami, Florida. Joe Raedle/Getty Images