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You've spent countless hours, even years customizing and driving your Jeep. Don't let that worn out or blown engine mean it's time to move on or get rid of your beloved Jeep. Replace it with one from our huge selection of replacement and performance engines.

We make it easy to breath new life into your older Jeep with a replacement engine from ATK. Choose the correct engine to replace the one currently in your Jeep, then when you're ready to return your core, ATK simplifies the process with their 360-Degree Core Guarantee. Simply place your old engine in the crate the new one came in and call the pickup number provided. They even pay the return shipping!

If you're looking to get even more power out of your newer Wrangler, AEV offers complete Hemi conversion kits for 07 and newer Wranglers. The swap couldn't be easier with AEV's complete kits that include everything you need, except for the engine and transmission, for a factory like engine swap.