3.8L QSF Cummins Engine, 123 HP at 2300 RPM and 360 ft/lb Torque at 1600 RPM. Turbocharged with wastegate. High pressure common rail and meets Tier 4 Final emission standards with Cummins Diesel Oxidation Catalyst. (https://www.cummins.com/engines/qsf38-tier-4-finalstage-iv)