The Jeep 4.0-liter inline-six, also known as the AMC 242, may not have been the most powerful engine of its era – especially compared to Toyota’s 4.0-liter V6, which produced around 245 horsepower – ...

Ask a dozen long-time Jeep fans their favorite engine, and you'll get a dozen answers, and they'll all raise some good points. The 6.4-liter Hemi V8 found in some of the newer Jeep Wranglers provides ...

This engine was believed to have come from a 1998 Jeep Grand Cherokee, where it was rated at about 195 horsepower. The Jeep 4.0 inline-six is known for durability but failed here due to neglect.