Multiple sources are suggesting a new Pentastar V6 is on the horizon.

Chrysler currently has just one Pentastar V6 in its lineup for the U.S., a 3.6-liter unit, but that may change when the Detroit Auto Show kicks off in January next year.

Two sources within the United Auto Workers union have confirmed to Automotive News that 3.2-liter Pentastar V6 will make its world debut in the successor for the Jeep Liberty that is set to be unveiled at the 2013 Detroit Auto Show in January.

The Liberty successor will not only gain a new 3.2-liter V6, but also a nine-speed automatic transmission from ZF, the same supplier that created the eight-speed automatic found in multiple Chrysler products. Although no horsepower or fuel economy figures were given, it is likely that Jeep is going to make a very serious effort to capture the best-in-class fuel economy title with this new vehicle - something not usually associated with the rugged off-road-minded Jeep brand.

Some hints at this coming engine have been leaked directly from the lips of none other than Chrysler CEO Sergio Marchionne, who said at the Geneva Motor Show, "If we had known the eight-speed [transmission] was coming, we would have made the [3.6-liter] Pentastar a 3.2-liter [V6]."