ATK AMC 258 CID Inline 6 Cylinder Replacement Jeep Engine - DA21

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  • ATK NORTH AMERICA | Part Number: ATKDA21
  • Engine Configuration:L6
  • Engine Type:Long Block
  • Fitment:Universal Fit
  • Displacement:258


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.



Question & Answers

3 Answered questions

mechanical fuel pump compatible

Asked by Mike from mililani, HI on

Hello Mike Yes it will take the stock type fuel pump. Thanks

Answered by Rody from mililani, HI on

Does this motor accept the single serpentine belt system?

Asked by geoff from on

Hello geoff, Yes, the ATK NORTH AMERICA AMC 258 Replacement Jeep Engine will accept a single serpentine belt system Thank you.

Answered by from on

It says it has no oil filter check valve. Does it not need one?

Asked by rob from Ontario Canada on

Thanks for the question Rob ATK NORTH AMERICA AMC 258 Replacement Jeep Engine ATKDA21, You are going to reuse the old oil filter check valve off your engine. Thank you BJ Answer Box Sales

Answered by from Ontario Canada on


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