2014 Damged Automatic Gasoline 4WD In the name of God, the Most Gracious, the Most Merciful. My dear brothers, we have Dodge Charger, Challenger, Jeep Wrangler engine changes and renewals with a 12-month warranty. Engines 3.6 are available for overhaul and ready-to-install engines. Engines 5.7 are available for overhaul and ready-to-install engines. Engines 6.4 are available for overhaul and ready-to-install engines.