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The Chrysler Pentastar engine family is a series of aluminium (die-cast cylinder block) dual overhead cam 24-valve gasoline V6 engines introduced for the 2011 model year in Chrysler, Dodge, and Jeep vehicles.
This engine family was Chrysler's first 60° V6 engine designed and built in-house for front wheel drive vehicles, and their first V6 not based on a V8. It was designed as a larger, more powerful alternative to the Mitsubishi 3.0 V6 in the minivans and debuted in 1989 for the 1990 model year.
A heavy-duty towing package is available on select Gladiator Sport models increasing the towing capacity to 7,650 lb (3,470 kg) and includes a 4.10 rear axle ratio. Rubicon models with automatic transmissions tow 7,000lb. The diesel-powered Gladiator will feature a lower towing capacity rating than the gasoline-powered variant.
For the 2012 model year the 3.8L V6 was replaced by Chrysler 3.6L Pentastar VVT V6 engine previously seen in the Jeep Grand Cherokee (WK2), now producing 285 horsepower, and 260 pound-feet of torque. The NSG370 remained as the manual transmission option, while the 42RLE was replaced by a 5-speed Mercedes-Benz NAG1-family W5A580 .
The single overhead cam V6 engine introduced in 1993. It was derived from Chrysler's first homegrown front-wheel drive V6, the Chrysler 3.3 engine. The SOHC V6 has been replaced by the Chrysler Pentastar engine. There are three major variants of this basic design: the 3.5 L, 3.2 L, and 4.0 L. Additionally, a 2.7 L DOHC version was developed.
The iron-block, aluminum-head V6 was the only engine available for 2008. Towing capacity was 5,000 lb (2,268 kg). Jeep discontinued the Liberty CRD for the American market because it would not meet tougher 2007 emissions standards for diesel engines. Between 2008 and 2010 the Jeep Liberty KK was sold in the European market with a 2.8 L diesel ...
In the United States, this engine is often confused with the AMC/Jeep 232 cu in (3.8 L), which Kaiser Jeep purchased to replace the SOHC Kaiser engine 230 cu in (3.8 L) in 1965. The Tornado first appeared in civilian Jeep vehicles in 1963 and was only used until 1965. The US Army M-715 and derivatives used it through the 1960s and early 1970s.
The block was designed to be expandable from 2.8 L to 4.0 L. High Feature V6 engines were previously produced in Fishermans Bend, Port Melbourne, Australia, and remain in production at the following four manufacturing locations: St. Catharines Engine Plant, St. Catharines, Canada; Flint Engine South in Flint, Michigan, United States; Romulus ...