FCA Developing New Inline-Six To Replace Pentastar V6?

Fiat Chrysler Automobiles is allegedly working on an inline-six engine to replace the aging Pentastar V6.

Enthusiast website Allpar claims that the inline-six will be a bespoke design rather than an existing four-cylinder with two extra cylinders. FCA engineers are also thought to be developing the engine with relatively small bores and want to restrict the inline-six’s displacement to just under 3.0-liters in order to avoid higher taxes in certain parts of the world.

In all probability, this engine will be offered in a number of different configurations. Range-topping variants will likely make use of twin-turbochargers or, perhaps, a twin-scroll turbo, for an output close to or even higher than the HEMI V8.

It remains unclear how far off the engine is from launching, but it possible that it could debut in a variant of the upcoming Jeep Wagoneer or the next-generation Grand Cherokee. The Dodge Charger and Challenger will also allegedly make use of this new inline-six and it could also become the default powertrain for Ram pickup trucks.

It’s also possible that the more exotic companies from FCA, like Alfa Romeo and Maserati, could also use a version of the engine with parts designed by Ferrari.

Note: We have contacted FCA about this report and will update this story when we hear back.

Update: FCA got back to us, simply stating that it doesn’t comment on speculation.

more photos...
  • charlotteharry57

    Other sites (and Allpar itself) are going nuts, thinking that all these models and the new engine are coming for 2020. Wrong. We’ve seen FCA’s own timeline that has the GC, Wagoneer and GW as 2022 models. So, calm down.

  • Harry_Wild

    The Penastar V6 is around 12 years old. Time for a new one! Hope it is reliable!

    • Classic Bob

      actually 9 years old, first introduced for the 2011 model year.

  • kachuks

    Makes sense to put significant resources into this type of engine. Pentastar has been around for a while but has been put into just about every configuration of passenger car FCA makes.

  • gibgibgib

    I’m so here for the return of straight -6’s from multiple manufacturers

  • eb110americana

    The bores in an inline-6 need to be small, otherwise the engine winds up too long (or wide if transversely mounted) to fit into smaller cars. You need some space in front of the engine for crumple zones and radiator breathing room–which is why most inline-6s are sticking with 3.0L displacement.

    I doubt it would make the HP of the Pentastar in NA form, and if it did, certainly not the torque. But going turbocharged would surely push things towards 400 hp. The nice thing about an inline-6, apart from the innate balance, is that in only requires one cylinder head, half the cams–it’s a much simpler engine to construct.

    • Rocket

      Transverse mounting seems highly unlikely. There’s really nothing FWD in the lineup that calls for more power than the Pentastar or 2.0T can provide.

      • eb110americana

        The article talks about it replacing the Pentastar, which is under the hood of the Pacifica. There is also the 3.2L under the hood of the Cherokee. It could be that they would go exclusively turbo-4, just like the original MOPAR minivans.

        • Rocket

          Yes, it does. It does not talk about replacing it in everything, however. No transverse applications are even mentioned. We will not see an inline six in the Pacifica. No way, no how.

  • john1168

    This is good news. I don’t mind the Pentastar myself but it at least needs some upgrades like direct injection and cylinder deactivation. But I guess they’re not gonna do that as they’re coming out with this new I6. I’m really looking forward to the new Grand Cherokee and with a twin turbo I6 and maybe a new transmission (although the current ZF 8 speed is really good), it should be great.

    • Michael_66589

      For me bad news. This is one of last multipoint injected engines from american manufacturer. I always convert MPI engines to LPG for little money (I live in Europe that’s why). Direct injected and turbo engines are too expensive for LPG.

      • john1168

        Interesting! Someone else posted on a different article that they too didn’t like D.I. and I couldn’t figure out why. Probably the same reason as you I’m guessing.

  • Six_Tymes

    smart. one of the best engines ever made in history was the old 4.0. that ran forever, I owned 2, both had well over 300000 and ran like new when i sold them. just hope these new straights are as good or close to being as good.

  • Bash

    So just because it’s from the last decade they want to change it. They should have invested all that money into updating their lineup and their current cars dated designs. To me this is another crazy bull load from FCA.

2019 Jeep Wrangler Gains Four-Cylinder Petrol Option In The UK

Jeep customers in the UK are now offered the 2.0-liter turbo version of the new Wrangler.

EU Imposes A 30 Percent Reduction In Truck CO2 Emissions By 2030

The plan will be reviewed again in 2022, and an interim 15 percent reduction has been set for 2025.

Koenigsegg Wants To Build Thousands Of Vehicles A Year, Rival Ferrari

Koenigsegg has ambitious plans to sell supercars in large numbers and target industry leaders.

Skoda Vision IV Concept Interior Previewed Ahead Of Geneva Debut

The Vision IV show car is a coupe-SUV that uses VW Group’s MEB electric vehicle platform.

Sauber F1 Will Lend Its Expertise To Alfa Romeo’s Road Cars – Or Maybe Not

Sauber’s technical director and Alfa Romeo’s head of design expressed different opinions on the issue.

2019 Daytona 500 Featured Your Usual NASCAR 21-Car Pileup

Miraculously, no one was injured, but the stewards had to red flag the race for 25 minutes.

Aston Martin’s ‘Son Of Valkyrie’ Hypercar Will Do The Norse Gods Proud

The Aston Martin 003 hypercar is coming with a turbo V6 hybrid powertrain.

McLaren 600LT Spider Seems Awesome On Track, Can’t Wait For Full Reviews

Watch McLaren’s chief test driver, Kevin Brack, push the 600LT Spider to its limits.

Mercedes Sends Off SLC With New Final Edition. Is It The End Of An Era?

After a successful career, Mercedes is phasing out the SLC / SLK..

New Mercedes-Benz SL Grand Edition Favors Comfort Over Performance

The Mercedes-Benz SL Grand Edition models won’t be sold in the U.S..