Hennessey Maximus, The 1,000HP Jeep Gladiator Hellcat Is Here To Conquer It All

Following a preview earlier this year, Hennessey has unveiled their all-new Maximus ahead of its debut at SEMA.

Based on the Jeep Gladiator, the Maximus is an insane off-roader that features an impressive combination of hard-core looks and mind-boggling performance.

Starting under the hood, the 3.6-liter Pentastar V6 has been replaced by a supercharged 6.2-liter Hellcat V8 engine. However, the company didn’t stop there as the engine has an HPE1000 upgrade that includes a heavy duty radiator, an upgraded fuel system and a stainless steel exhaust. The tuner also installs a new ECU and wiring harnesses.

Driven: 2020 Jeep Gladiator Marks The End Of Boring Mid-Size Pickups

Thanks to these modifications, the truck produces 1,000 hp (746 kW / 1,014 PS) and 933 lb-ft (1,264 Nm) of torque. That means the model has 3.5 times more power than the standard Gladiator and this cuts the 0-60 mph (0-96 km/h) time to just 3.9 seconds.

Of course, the Maximus is more than just a high-performance pickup as Hennessey installs an assortment of off-road goodies. One of the most noticeable changes is the 6-inch lift kit from King. The truck also sports aluminum wheels which are wrapped in BFGoodrich off-road tires.

Elsewhere, Hennessey installed heavy-duty driveshafts and Dana 60 axles with a 4.88 gear ratio. Other highlights include custom bumpers, LED auxiliary lights and “drop-down” running boards. Buyers will also find a custom leather interior and an individually numbered plaque.

Gladiator prices can easily exceed $50,000 but that’s nothing compared to the Maximus’ base price of $225,000. The high-performance truck will also be more exclusive as production will be limited to 24 units.

The price tag might give people sticker shock, but John Hennessey said “What other vehicle can climb to the top of Aspen Mountain with a KTM dirt bike in the back in the morning and then run 0-60 mph (096 km/h) in 3.9 seconds at the drag strip later the same day?”


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  • Six_Tymes

    Well, ill admit i’m impressed. That said, its obviously over kill for most peoples needs. BUT, i would surely love to drive it for a week or so. Taking this off road on trails would be a blast of fun. When ca we see someone testing this on a trail… ?

    • brn

      If I drove it for a week or so, I’d be in the hospital.

      • Six_Tymes

        nah, wear a helmet and install a roll cage, we’d both be fine.

  • Jason Miller

    For those with too much money and no common sense.

  • aaronbbrown

    This could get me to buy a Chrysler. And that’s saying something.

    What’s with that back window, is that a pass-through?

    • The-Fez


  • aaronbbrown

    It’s an instant monster truck, upgrade that suspension and throw some monster Monster mudders on their, you’ve got a major league fun machine. Or you could set it up for off-road racing, it would fly in the desert.

  • Nastinupe1911

    I do believe that Jeep needs to make a high powered Gladiator/ Wrangler after watching that video with the Wrangler, Jmni, and G 63 AMG. The Wrangler would have won the contest by 3 points if it had a bit more power to make it over that steep incline. Not much more, perhaps maybe 100 hp. FCA needs to throw a 375 hp engine into the Wrangler to help it out. Perhaps disengage 3 cylinders during normal driving conditions.

    Also I typically don’t like the Gladiator. It looks ugly IMHO, however, jacked up like this, it looks a lot better.

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