The PowerTech was a new family for Chrysler engines, and was not based on the Chrysler A engine as existing Chrysler V8s were. A 4.7L V8 came first as a Jeep engine, in the Jeep Grand Cherokee, and a 3.7 L V6 version debuted in 2002 for the Jeep Liberty. The PowerTech V6 and V8 were direct replacements for Chrysler’s LA family of engines in the early 2000s, and were also used in the Dodge Ram. They were not used in any cars, but were reserved for truck and SUV use.
The 4.7 liter version was the first of this family, appearing in the 1999 Jeep Grand Cherokee. The displacement is 4.7L It has a cast iron block and aluminum “almost Hemi” heads with two valves per cylinder. It uses a chain-driven overhead camshaft.
Applications:
* 1999-present Jeep Grand Cherokee
* 2000-present Dodge Dakota
* 2000-present Dodge Durango
* 2002-present Dodge Ram
* 2006-present Jeep Commander
* 2007-present Chrysler Aspen
A “High-Output” version of the 4.7 L PowerTech engine, producing 265 hp and 330 ft·lb of torque, was introduced in 2002, first appearing in the Jeep Grand Cherokee Special Edition.
Applications 4.7L High-Output Engine:
* 2002-2004 Jeep Grand Cherokee available on Limited, Overland and Special Edition models and around one thousand 2002 Dakotas had these installed into them.
* 2005-present Dodge Dakota
* 2008 Dodge Challenger [base models]
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