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Pentastar engine
Pentastar engine
Overview
Manufacturer	Stellantis North America
Production	2010–present
Layout
Configuration	60° V6
Displacement	3.0 L; 182.9 cu in (2,997 cc); 3.2 L; 197.7 cu in (3,239 cc); 3.6 L; 219.9 cu in (3,604 cc)
Cylinder bore	91 mm (3.58 in) (3.2L); 96 mm (3.78 in) (3.6L)
Piston stroke	76 mm (2.99 in) (3.0L); 83 mm (3.27 in) (3.2L & 3.6L)
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Valvetrain	DOHC 4 valves per cyl. (24 total)
Valvetrain drive system	Timing chain
Compression ratio	10.7:1 (3.2L); 10.2:1 (3.6L); 11.3:1 (Upgrade)
Combustion
Fuel system	Sequential MPFI
Fuel type	Gasoline; E85
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	230 hp (172 kW) (3.0L); 271 hp (202 kW) (3.2L); 275–305 hp (205–227 kW) (3.6L)
Torque output	210 lb⋅ft (285 N⋅m) at 4400 rpm (3.0L); 239 lb⋅ft (324 N⋅m) at 4400 rpm (3.2L); 251–269 lb⋅ft (340–365 N⋅m) (3.6L)
Dimensions
Length	503 mm (19.8 in)
Chronology
Predecessor	Chrysler SOHC V6; Chrysler 3.3 & 3.8 engine; Chrysler LH engine; Chrysler Powertech V6

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. The engine was initially named "Phoenix," but the name was changed before the official launch due to a trademark conflict; the Pentastar name is derived from the trademark of the former Chrysler Corporation, which dates back to 1963.

Production

The Pentastar engines are made in three different factories: Dundee Engine Plant, Trenton Engine Plant and Saltillo South Engine Plant.^[1]

The Pentastar engine was introduced at the 2009 New York Auto Show.^[2]^[3] The engine design allows the use of E85 or 87 octane fuel and features dual variable valve timing. Forced induction, and cylinder deactivation options were engineered into the engine design, but have not been implemented from the factory, remaining "on the shelf" as of 2016.^[4]

Insiders initially reported that the engine would come in four basic sizes (3.0, 3.3, 3.6, and 4.0 L), each offered in various states of tune. The 3.3 L and 4.0 L have been dropped from the list and a 3.2L added, while Fiat's investor website, as of December 2011, specifies the 3.0 L with Fiat's MultiAir technology.^[5] The 3.6 L engine itself has different power ratings in different vehicles, and has higher output 305 hp (227 kW; 309 PS) and 269 pound force-feet (365 N⋅m) of torque when applied in the Dodge Challenger.^[6]

Single and Twin-turbocharged variants had been planned for 2015. These engines were projected to produce around 420 and 370 hp (313 and 276 kW; 426 and 375 PS), respectively. Direct injection was also planned.^[7]

Due to the new ownership structure, Fiat has obtained the right to use these engines, and had adopted them in the larger models of Lancia and Fiat brands.

First generation

Applications

3.0 L

2014–present Jeep Grand Cherokee (China, Russia)
2014–present Jeep Wrangler (China)
2014–2023 Chrysler 300C (China)

3.2 L

2014–2022 Jeep Cherokee

3.6 L

2011–2014 Chrysler 200^[8] (Models: LX, Touring, Limited, S, and C)
2011–2016 Chrysler Town & Country (Models: LX, Touring, Touring "L", Limited, S, Limited Platinum)
2011–2014 Dodge Avenger (Models: SE V6, SXT, R/T)
2011–2023 Dodge Challenger (Models: SE, SXT, SXT +, SXT Rallye Edition, GT)
2011–2023 Dodge Charger (Models: SE, SXT, SXT +, SXT Rallye Edition, GT)
2011–present Dodge Durango (Models: Express, SXT, Crew, Crew Lux, Citadel, ACT Plus, Limited, GT)
2011–2020 Dodge Grand Caravan (Models: SE American Value Package (AVP) or Canadian Value Package (CVP), SE, Crew, Crew Lux, SXT, R/T, SE Plus, SXT Plus, GT)
2011–2019 Dodge Journey (Models: SE American Value Package (AVP) or Canadian Value Package (CVP), Mainstreet, Crew, Crew Lux, SXT, R/T, GT, Crossroad)
2011–2015 Jeep Grand Cherokee (Models: Laredo "E", Laredo "X", 70TH Anniversary Edition, Trailhawk, Altitude Edition, Limited, Overland, Overland Summit Edition)
2011–2014 Volkswagen Routan (Models: S, SE, SEL, SEL Premium)
2011–2023 Chrysler 300 (Models: 300 Base, 300 S V6, 300 C w/ V6, 300 C Glacier Series w/ V6, 300 C Luxury Series w/ V6)
2012–2018 Jeep Wrangler JK (Models: Sport, Unlimited Sport, Sport "S", Unlimited Sport "S", Freedom Edition, Unlimited Freedom Edition, Altitude Edition, Unlimited Altitude Edition, 70TH Anniversary Edition, Unlimited 70TH Anniversary Edition, Sahara, Hard Rock Edition, Unlimited Sahara, Moab, Unlimited Moab, Rubicon, Unlimited Rubicon, Rubicon 10TH Anniversary, Unlimited Rubicon 10TH Anniversary) Jeep Rubicon Recon 2017
2019-present Jeep Wrangler JL (Models: Sport, Willys Sport, Sport S, Islander, Willys, 80th Anniversary (2021), Freedom, Sport Altitude, Unlimited RHD, Sahara, Rubicon, Sahara Altitude, High Altitude
2020-present Jeep Gladiator JT (Models: Sport, Willys Sport (2021), Sport S, Willys (2021), Overland, Freedom, 80th Anniversary (2021), Rubicon, Mojave, High Altitude, California Edition (California dealer only), Texas Trail (Texas dealer only)
2011–2015 Ram Cargo Van (Models: C/V Base, C/V Tradesman)
2012–2015 Lancia Voyager (Models: Limited)
2012–2014 Lancia Thema
2012–2015 Fiat Freemont
2012–present Ram 1500 (Models: Tradesman, SLT, HFE)
2013–2021 Ram ProMaster
2014–2017 Chrysler 200 (295-hp, 262-lb ft)
2017–present Chrysler Pacifica (287-hp, 262-lb ft) (Hybrid: 260-hp combined, 230-lb ft)
2020–present Chrysler Voyager (287-hp, 262-lb ft)

Versions

Code	Displacement	Bore	Stroke	Years	Power SAE	Torque SAE
	3.0 L; 182.9 cu in (2,997 cc)	91 mm (3.58 in)	76 mm (2.99 in)	2013–	172 kW (234 PS) at 6350 rpm	285 N⋅m (210 lb⋅ft) at 4400 rpm
S	3.2 L; 197.7 cu in (3,239 cc)	91 mm (3.58 in)	83 mm (3.27 in)	2014–	271 bhp (202 kW; 275 PS) at 6750 rpm (Cherokee)	239 lb⋅ft (324 N⋅m) at 4400 rpm
G	3.6 L; 219.9 cu in (3,604 cc)^[9]^[10]	96 mm (3.78 in)^[9]	83 mm (3.27 in)^[9]	2010–	283 bhp (211 kW; 287 PS) at 6400 rpm (Avenger, Grand Caravan, Journey, Town & Country, 200, Routan)	260 lb⋅ft (353 N⋅m) at 4800 rpm
					290 bhp (216 kW; 294 PS) at 6350 rpm (Grand Cherokee, Durango)
					292 bhp (218 kW; 296 PS) at 6350 rpm (Charger, 300)^[11]
					305 bhp (227 kW; 309 PS) at 6350 rpm (Challenger)	268 lb⋅ft (363 N⋅m) at 4800 rpm
				2012–	285 bhp (213 kW; 289 PS) at 6400 rpm (Wrangler)	260 lb⋅ft (353 N⋅m) at 4800 rpm
				2013–	300 bhp (224 kW; 304 PS) at 6350 rpm (Charger Rallye Group, 300S)	264 lb⋅ft (358 N⋅m) at 4800 rpm
				2013–	305 bhp (227 kW; 309 PS) at 6400 rpm (RAM 1500)^[11]	269 lb⋅ft (365 N⋅m) at 4175 rpm
				2015– 2016	295 bhp (220 kW; 299 PS) at 6350 rpm (Chrysler 200)	262 lb⋅ft (355 N⋅m) at 4250 rpm
				2012-	280 PS (206 kW) at 6350 rpm (Fiat Freemont)	342 N⋅m (252 lb⋅ft) at 4350 rpm
					283 PS (208 kW) at 6600 rpm (Lancia Voyager)	344 N⋅m (254 lb⋅ft) at 4000 rpm
					286 PS (210 kW) at 6350 rpm (Lancia Thema)	340 N⋅m (251 lb⋅ft) at 4650 rpm

Pentastar upgrade

For 2016, FCA released an updated version of the 3.6 L engine. This engine features upgrades to the variable valve timing (VVT) system, two-stage variable valve lift (VVL), a new intake manifold, new valve springs, new piston rings, new fuel injectors, new ignition coils, a cooled Exhaust gas recirculation system, lower internal friction and lower weight. It also features a higher compression ratio, increased from 10.2:1 to 11.3:1. These improvements increase power as well as efficiency,^[12] however the new version no longer supports flex-fuel capability.