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World's Fastest and Most Powerful Pickup Truck Begins Production

SEALY, Texas, June 23, 2021 -- Hennessey Performance Engineering (HPE), the Texas-based hypercar manufacturer and high-performance vehicle builder, has started production of the world's most powerful pickup truck, the Hennessey MAMMOTH 1000 TRX with its upgraded 6.2-liter supercharged Hellcat V8 boasting 1,012 hp.

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Based on the 702 hp Dodge Ram 1500 TRX pick-up truck, the high-performance-focused enhancements by Hennessey cut the 0-60 mph time to just 3.2 seconds – the quickest in the world – while torque grows to 969 lb-ft. With modifications including a high-flow 2.65L supercharger, fuel injectors and high-flow induction system alongside performance-boosting calibration, the 6.2-liter V8 truck can achieve an 11.4-second quarter mile at over 120 mph.

John Hennessey, company founder and CEO: "The new MAMMOTH 1000 TRX is the most powerful pickup truck that Hennessey Performance has ever offered. The Ram TRX already boasts the highest horsepower of any vehicle manufacturer's pickup, so our performance, styling and off-road enhancements make this the most formidable new truck you can buy. We've already sold more than 100 trucks, with each answering one big question – why have a 1,000-horsepower pickup truck? Because we can!"

Measuring 228.9 inches (5.81 meters) long, 82.1 inches (2.09 meters) wide and 77.6 inches (1.97 meters) high, the imposing hypertruck makes an enormous statement on the road. Capable of carrying six adults in comfort, carrying a payload exceeding 2,300 lbs and towing more than 7,700 lbs, the Mammoth is the most comprehensive and capable performance truck on the market.

Including buying the stock TRX, owners opting for the Mammoth 1000 will typically pay in the region of $150,000 for their build. The majority of owners will take a highly-specified stock model, and add the Mammoth 1000 package and the Stage 2 off-road enhancements. The popular Stage 2 package adds custom bumpers, LED lights, a front levelling kit, 37-inch off road tires and upgraded electronic fold-out steps. The Mammoth 1000 TRX complete turnkey package also comes with a 2 year / 24,000-mile warranty.

Hennessey will ensure exclusivity for its customers by limiting production volumes of the Mammoth 1000 with each truck fitted with a special chassis plate recording its build number. Just 200 will be produced in 2021 for customers across the US and around the world. Orders can be placed through authorized Ram retailers or Hennessey directly by calling 979.885.1300 or visiting

Specifications: Mammoth 1000 TRX





1,012 bhp @ 6,500 rpm

Mammoth Custom Front Bumper

969 lb-ft torque @ 4,200 rpm

Mammoth Custom Rear Bumper

LED Lights in Front Bumper


20-inch Hennessey 10-Spoke Wheels

0-60 mph: 3.2 seconds

35-inch Off­-Road Tires

1/4 mile: 11.4 seconds @ 120 mph

Front Leveling Kit

Hennessey & Mammoth Exterior Badges


Professional Installation

Upgraded High-Flow Supercharger System

3 year / 36,000 Mile Limited Warranty

Supercharger Front Drive Pulley Upgrade

Installed $14,950

Supercharger Rear Drive Pulley Upgrade

Crank Damper Pin Assembly Upgrade


Upgraded Thermostat

Mammoth Custom Front Bumper

Heavy Duty Supercharger Belt

Mammoth Custom Rear Bumper

Upgraded Spark Plugs

LED Lights in Front Bumper

High-Flow Fuel Injectors

20-inch Hennessey 10-Spoke Wheels

High-Flow Filtration System

37-inch Off­-Road Tires

Crank Case Ventilation System

Front Leveling Kit

HPE ECM Calibration Upgrade

Upgraded Electronic Fold Out Steps

HPE TCM Calibration Upgrade

Hennessey & Mammoth Exterior Badges

All Necessary Gaskets & Fluids

Professional Installation

Professional Installation

3 year / 36,000 Mile Limited Warranty

Chassis Dyno Testing

Installed $19,950

Road Testing (up to 200 miles)

Hennessey Embroidered Headrests


Hennessey Exterior Badge

Retractable Electronic Bed Cover

Mammoth 1000 Exterior Badges

Installed: $4,450

Serial Number Plaques

Upgraded Electronic Fold Out Steps

Limited Edition 1 of 200

Installed: $3,450

2 Year / 24,000 Mile Warranty

20-inch Hennessey Wheels &

35-inch Off­-Road Tires

Installed $32,500

Installed: $4,950

Package prices & contents subject to change. Contact Hennessey Performance for details.

Social media
YouTube: hpedesign  |  Instagram: hennesseyperformance  |  Facebook: @hennesseype  |  Twitter: @HennesseyPerf

For further information, images, or comment, contact the Hennessey PR team at Vcomm:
[email protected] 
+44 (0)7816 906 794

SOURCE Hennessey Performance

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