The Chrysler Pentastar engine family is a series of aluminium (die-cast cylinder block) Dual overhead cam 24-valve V-6 engines introduced for model-year 2011 Chrysler, Dodge and Jeep vehicles. Chrysler has announced details, including the investment in plants ($2 billion, not including engineering of the engines themselves). The engine was initially named "Phoenix", but the name was changed before the official launch due to a trademark conflict. The engine was introduced at the 2009 New York Auto Show. This engine requires no EGR valve.

The engine design also allows the use of E85 or 87 octane fuel, supports cylinder deactivation, and features dual variable valve timing.

The Pentastar engines will be made in Trenton, Michigan and Saltillo, Mexico. The Saltillo, Mexico plant is set to begin production in the 2012 model year (with parts machined in Toledo, Ohio).

Insiders initially reported that the engine would come in four basic sizes (3.0L, 3.3L, 3.6L, and 4.0L), each offered in various states of tune. The 4.0L has been dropped from the list and a 3.2L added, according to Allpar as of November 2008 and October 2010, respectively, while Fiat's investor website, as of Dec., 2011, specifies the 3.0L with Fiat's multi-air technology. The 3.6 liter engine itself has different horsepower ratings in different vehicles, and has higher horsepower (305 hp) and torque (268 lb-ft) as used in the Dodge Challenger