As the smaller of the two Cummins engines, the 4BT comes in at a length of 30.6 inches and between 745 and 782 pounds compared to the larger 35-inch, 1,100-pound 6BT.

In the video below, Cummins tells Overland Bound that the engine was EPA rated at 31mpg highway and 25 city. The R2.8 is rated at 161 horsepower and 267 lb.-ft. of torque.

The 239-cubic inch (3.9-L) Cummins 4BT turbodiesel engine is so capable that General Patton himself would've killed to equip his trucks with it.

The list of remanufactured 6.7 Cummins Turbo Diesel engines available through Mopar includes options such as short blocks, long blocks, and complete crate engines divided into groups suitable for ...

Hays left no bolt unturned, or unanalyzed, in the buildup of the Jimmy. Among other things, he bolted in a Cummins 4BT turbodiesel engine, Doubler transfer case, Dana 60 front axle, and lots more.

Diesel Engine in an Overland Jeep The 3.9L Cummins 4BT adds a bit more horsepower and a healthy dose of torque to the equation, which is more than enough to tote the Conqueror trailer.