The 4.0L Jeep engine is rated at 235 lb-ft of torque, 30 lb-ft less torque than the 4BT. However, the 4.0L inline-six makes a lot more horsepower, rated at 190 compared to the 4BT's 105.

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.

Read about this one-of-a-kind Cummins 4BT-powered 1998 Ford Ranger diesel, only on dieselpowermag.com, the official website of Diesel Power Magazine ...

Build time: 5 years Drivetrain Engine: 3.9L Cummins 4BT turbodiesel Transmission: Borg-Warner T-19 four-spd manual Transfer case (s): Dana 20 Low range ratio: 2.0:1 Crawl ratio: 39.24 ...

The 4.0L Jeep engine is rated at 235 lb-ft of torque, 30 lb-ft less torque than the 4BT. However, the 4.0L inline-six makes a lot more horsepower, rated at 190 compared to the 4BT's 105.