Adrenalin Fortress 004

Inquire

Year

2012

Make

Other

Model

Other

Odometer

Engine

Cummins 6.7L ISB

Fuel Type

diesel

Transmission

automatic

VIN / Chassis #

Seller

Adrenalin Industries

Location

Richmond, UT

Seller Stock #

Title Status

clean

CARFAX Report

Offered for sale by the buider, Adrenalin Industries, out of Richmond, Utah, this is the Adrenalin Fortress 004 6x6 Expedition Truck. At its foundation is one of only five civilian-built 6×6 trucks ever produced by BAE Systems. Powered by a 6.7L Cummins ISB, an Allison 7-speed, and upgraded with a stretched wheelbase, custom four-point-mounted living quarters, full off-grid electrical system, and commercial-grade build quality, this machine exists for one purpose: world-class, go-anywhere, no-compromises exploration. With long-range diesel capacity, and a fully custom residential interior, this 33,000-lb GVWR platform is one of the most capable civilian overland rigs ever built.

Rugged, Purpose Built Platform: Originally engineered by BAE Systems, the SD Brazos 6600 is a rare civilian 6×6 platform—not an ex-military truck—built for commercial durability, long-range operations, and extreme-duty reliability. Only five units were ever produced, making this a uniquely capable and collectible expedition foundation with factory engineering far beyond typical consumer overland builds.
A Powertrain & Driveline Built To Conquer: A 6.7L Cummins ISB delivers 350 hp and 800 lb-ft of torque to an Allison 7-speed transaxle, upgraded with fast axles to allow 70+ mph cruising—highly unusual for a fully loaded 6×6. Automatic differential lockers across all three axles provide uncompromised traction, while a 95-gallon diesel tank extends range deep into remote terrain.
Modified For Adventure: The frame has been stretched to support extended living quarters and a four-point pivoting subframe, ensuring torsional flexibility on uneven terrain. Heavy-duty upgrades include a custom front bumper, 25,000-lb Sherpa winch, roof rack with ladders, 2,000 watts of forward LED lighting, extensive Rigid lighting throughout, and Line-X sound-deadening for improved cab comfort.
A Luxurious & Comfortable Habitat: The fully custom residential-grade habitat features 23 ft of insulated living space, commercial upholstery, vinyl flooring, quartz countertops, marine-grade A/V, a full kitchen, bathroom, washer/dryer, dual refrigerators, and a powered dinette converting to a queen bed. A complete Victron electrical system, 1600W of solar, 1080Ah of lithium storage, Cruisin’ Comfort A/C, Timberline diesel heat/hot water, and 145 gallons of onboard water supply enable true off-grid independence.

The Adrenalin Fortress 004 stands in a category of one: a rare civilian-spec chassis built by a defense-grade manufacturer and transformed into a premium long-range expedition vehicle with commercial-grade systems, structural engineering, and professional fit-and-finish. The combination of a Cummins/Allison driveline, triple locking axles, a stretched chassis, a four-point subframe, and a fully custom insulated living environment makes this truck far more capable—and more comfortable—than typical overland builds based on smaller consumer platforms. If you’re looking for an expedition rig that can travel continents, carry serious gear, run fully off-grid, and survive decades of hard use, this is the one.

Powertrain & Driveline

2012 BAE SD Brazos 6×6 (Civilian model, 1 of 5 produced)
6.7L Cummins ISB – 350 hp / 800 lb-ft
Allison 7-speed transaxle
Automatic differential lockers – all three axles
Fast-axle upgrade (70+ mph capability)
95-gallon extended-range diesel tank
GVWR: 33,000 lbs
Approx. dry weight: 27,000 lbs

Chassis & Exterior

Frame stretched for increased wheelbase and large living quarters
Four-point pivoting steel subframe
Aluminum walls and roof with 3M VHB bonding
Reinforced walk-on roof
Cab-top aluminum ladders and roof rack
Custom front bumper
Sherpa 24V 25,000-lb winch
Pro-Vision backup + side-view camera system
Line-X sound deadening under cab
Extensive Rigid LED lighting:
- SAE headlights
- Two 30” SR-Series roof bars
- Q-Series under-windshield (2 spot, 2 flood)
- D-XL bumper pods (white + amber)
- D-Series ditch lights (2 flood)
- 8 exterior scene lights w/ red backlight
- Ground “snake” lighting both sides
Overall dimensions: 33’ L x 96” W x 12’4” H

Cab Interior

PRP racing seats
Alpine CarPlay touchscreen
JL Audio C2 coaxials (x4)
JL Audio stealth-box subwoofer
JL Audio XD 600/6 amplifier
Front interior lined with 1/8” closed-cell foam + commercial marathon tweed upholstery

Custom Living Quarters

6’8” interior height
Foamular insulation: R-7.5 walls / R-15 floor & ceiling
¾” PakTite engineered subfloor
Commercial vinyl flooring
Upholstered wall & ceiling panels
Extruded cabinets w/ aluminum faces + automatic LED lighting
Tern Overland dual-pane windows + powered roof hatch
Rear garage storage w/ automatic lighting
Aluminum under-mount storage boxes
Dometic 9500 12’ electric awning

A/V & Entertainment

Smart TVs (x2) with HDMI + USB
JL Audio Media Master head unit
JL Audio internal speakers (x4)
JL Audio external marine speakers (x2)
JL Audio 8” stealth-box subwoofer
JL Audio XD 600/6 amplifier

HVAC

12V Cruisin’ Comfort A/C (16,000 BTU)
Smart Wi-Fi thermostat
Elwell Timberline diesel heater + hot water
Three Dometic Fantastic roof vents

Plumbing & Bathroom

Aluminum shower base
Dometic cassette toilet
Vanity storage + mirror
Wall-mount bathroom sink
Heater Craft shower controls
100-gallon fresh tank
45-gallon grey tank
Outdoor shower port

Kitchen & Sleeping

Quartz countertops
Large stainless sink
True Induction dual cooktop
Dometic 10 cu-ft 12V fridge/freezer
Dometic 31-qt drawer fridge
Dometic convection microwave
Fisher Paykel 24” drawer dishwasher
Splendide vented washer/dryer
Powered telescoping dinette table
Dinette converts to queen bed
Malouf zero-gravity adjustable king bed
12” premium Malouf mattress
Bedside 12V/USB/120V power + gooseneck reading light

Electrical & Solar

Victron Multiplus 2 3000W inverter/charger
Victron touch-screen GX monitor
Victron MPPT solar controllers (x2)
Zamp Obsidian solar array – 1600W
Expion360 360Ah lithium batteries (x3) – 1080Ah total
Victron 100-amp DC-DC chassis charger
Victron smart shunt
Switch Pros Bluetooth lighting controller
Full LED interior lighting

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