American Motors Corporation introduced the 4.0-liter inline-6 engine with the 1987 Jeep Cherokee ... defunct for over half a century, its Twin H-Power straight-6 engine is a NASCAR legend.

While V8 power would eventually dominate the muscle ... it's no match for the AMC/Jeep Inline-6. The AMC/Jeep Inline-6's ...

Jeep revived the storied Wagoneer ... more efficient and powerful twin-turbocharged inline-6 powerplants. The Grand Wagoneer received a 30-hp power bump to 540-hp for the 2025 model year.

The sole engine is a 420-horsepower, twin-turbocharged 3.0-liter inline-six-cylinder that ... Available features include: The Jeep Wagoneer has the power and amenities you’d expect from ...

The Grand Wagoneer is Jeep’s largest ... A 471-horsepower, 6.4-liter V-8 powers the base, standard-length Grand Wagoneer trim, but a new 510-hp, turbocharged inline-six motivates all other ...