ATK AMC 4.0L Inline 6 Cylinder Replacement Jeep Engine - DA31 |

ATK AMC 4.0L Inline 6 Cylinder Replacement Jeep Engine - DA31

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  • ATK NORTH AMERICA | Part Number: ATKDA31
  • Engine Configuration:L6
  • Displacement:242
  • Engine Type:Long Block
  • Fitment:Universal Fit


When you purchase an engine from ATK you can rest assured that you are buying something that is better than new quality. Why does ATK have better than new quality? Every engine that ATK remanufactures is reverse engineered to ensure that any original factory defects are removed, saving you time and money and keeping your car or light truck on the road and out of the shop. *Retail price does not include the manufacturer core charge. A sales rep will contact you when your order is received regarding the core charge and availability.

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Question & Answers

3 Answered questions

Q: What is the lead time and core charge for this engine? Answer this question

A: DA31 fits only 19921 to 1995 4.0L engine Head casting number 7119 or 7120 block casting 405. Core is $335 and refunded only after inspected by ATK. They are waiting on parts and have no ETA at this time.

Answered by Kelly from 4WP Corporate Headquarters on 04/06/2021

Q: do you need the block number off my present jeep engine in order to get the right engine replacement for me? Answer this question

A: Hello No you can check the head casting number it should be 7119 or the 7120. The ran the same numbers for a good amount of time. Thanks

Answered by Rody on 07/22/2015

Q: Does this engine mount directly too a 1992 Jeep Wrangler with a factory automatic transmission 3 speed Answer this question

A: Hello Steven, Yes, the ATK NORTH AMERICA AMC 4.0L Replacement Jeep Engine will mount directly to your TF999 3 speed automatic transmission. Thank you.

Answered by RK on 04/10/2015


As the largest private label crate engine remanufacturer in North America, ATK has been around for over 80 years producing parts including high performance engines, transmissions and rear axles. When your Jeep needs an engine rebuild, an ATK remanufactured engine uses reverse engineering processes to virtually eliminate factory defects that hinder performance. One reason ATK is at the forefront of engines is their adherence to thorough cleaning and inspection techniques and their machining and magnafluxing capabilities. If staying out of the garage and out on the trail is a priority, rely on ATK to get your 4x4 up and running. Shop ATK NORTH AMERICA Now