Aside from the 3.6-litre V6 (285 horsepower) already available, the 2018 Jeep Wrangler JL will offer an optional turbocharged, 2.0-litre four-cylinder engine (270 horsepower) with mild hybrid assist. In 2019, a turbo-diesel, 3.0-litre V6 (260 horsepower) will be added.