This 2021 Ram 1500 TRX Crew Cab 4×4 was modified by Hennessey Performance of Sealy, Texas, with their Mammoth 1000 kit and is powered by a supercharged 6.2-liter Hemi V8 linked with an eight-speed automatic transmission, a full-time two-speed transfer case, and an electronically locking rear axle. The Mammoth kit added a high-flow 2.65-liter supercharger, induction system, and fuel injectors along with a front and rear leveling kit, electric fold-out side steps, 20″ Hennessey wheels, and steel bumpers with added LED lights up front. Factory equipment includes the TRX Level 2 Equipment Package, Carbon-Fiber Package, the Bed Utility Group, a dual-panel sunroof, LED headlights and taillights, a bed liner, Bilstein shocks, heated and ventilated power-adjustable front seats, heated and ventilated rear seats, a Harman Kardon 19-speaker sound system, a heated steering wheel, power-adjustable pedals, dual-zone automatic climate control, and a 12″ touchscreen UConnect infotainment system. Acquired new by the seller, this modified TRX 7k miles and is now offered with a Maryland title.

The truck is finished in Flame Red and has been fitted with Mammoth-branded front and rear bumpers, a front LED light bar, electric fold-out side steps, and Hennessey decals as part of the Mammoth 1000 kit. The truck is also equipped with a dual-panel sunroof, LED headlights and taillights, fog lights, a TRX-specific grille and hood, functional hood scoops, a bed liner, front and rear tow hooks, a receiver hitch, and dual exhaust outlets.

Black 20″ Hennessey 10-spoke wheels are mounted with 37×13.5″ Toyo R/T Open Country tires. The truck rides on dual-valve Bilstein BlackHawk e2 adaptive dampers with remote reservoirs, and stopping power is provided by 14.9″ front and 14.8″ rear vented anti-lock disc brakes. The truck has been fitted with a front and rear leveling kit as part of the Hennessey modifications.

The cab features heated and ventilated front and rear seats upholstered in black leather and microsuede with red accents, microsuede accents, and Hennessey and TRX logos. Matching upholstery covers the heated and ventilated rear seats, and carbon-fiber interior trim was specified by the TRX Carbon-Fiber Package. Additional appointments include a 12″ Uconnect touchscreen infotainment system, a digital rearview mirror, a 19-speaker Harman Kardon audio system, a trailer brake controller, power-adjustable pedals, and dual-zone automatic climate control.

The heated steering wheel fronts analog 120-mph speedometer and 7k-rpm tachometer instrumentation with inset auxiliary gauges as well as a central configurable LCD screen. Controls for launch control, differential engagement, and various driving modes are located to the lower right of the steering column. The digital odometer indicates 7k miles, all of which were added under current ownership. The optional Advanced Safety Group added automatic emergency braking, a tailgate-ajar warning lamp, adaptive cruise control, lane departure warning, a 360° surround-view camera system, auto high-beam headlamp control, and parallel and perpendicular park assistance.

A plaque mounted to the passenger-side dashboard lists the Hennessey serial number, while a brushed-aluminum TRX plate is affixed to the center console armrest and lists the VIN and factory Ram specifications.

The supercharged 6.2-liter Hemi V8 was modified by Hennessey Performance with a high-flow 2.65-liter supercharger, induction system, and fuel injectors. Hennessey rated the engine at 1,012 horsepower and 969 lb-ft of torque. An oil change was performed in March 2026.

Power is sent to all four wheels through an 8HP95 eight-speed automatic transmission, a full-time two-speed transfer case, and an electronic-locking rear differential with 3.55:1 gearing.

The window sticker shows factory options, colors, and a total price of $98,965.

The Carfax report is free of accident or damage entries and lists an open recall.