Overview
Now available in North Bend, WA, this 1998 Stewart & Stevenson M1078 has been meticulously transformed into a luxurious, self-sustaining expedition vehicle. With only 5,500 miles on the odometer, this rig combines the legendary durability and off-road capability of the M1078 chassis with an exceptional custom-built living habitat completed in 2023. Priced at $350,000, this overlander is ready to take you beyond the beaten path while keeping you in unparalleled comfort.
Learn more, make an offer, or inquire today.
- Rugged Powertrain & Off-Road Mastery: The M1078 is equipped with a 6.6L Caterpillar 3116 turbo diesel engine paired with an Allison 7-speed automatic transmission featuring an off-road mode for adaptable power delivery. The Central Tire Inflation System (CTIS) allows on-the-go tire pressure adjustments, and the full-time 4x4 drivetrain ensures maximum traction. This overlander is built to handle extreme terrains with high-speed gears capable of a 74 mph top speed and a torsion-free 4-point subframe for stability on rough roads.
- Luxurious Living Quarters: Inside the fiberglass-reinforced composite cabin, you’ll find a well-thought-out living space with solid wood cabinetry, a queen bed with ample closet space, and a dinette that converts into a bed at the push of a button. The full-size bathroom features a residential-style shower with a rain head, a composting toilet, and a barn-style door for privacy. Dual-pane Euro Vision windows provide natural light, ventilation, and blackout shades for ultimate comfort.
- Off-Grid Capability: Perfect for extended adventures, the vehicle includes 1480 watts of solar power, a 300Ah lithium-ion battery bank, and a 4000-watt pure sine wave inverter. With a 140-gallon freshwater tank and a 42-gallon gray water tank, you can enjoy weeks off the grid. Two 9000 BTU mini-splits provide heating and cooling, and the entire system is designed for four-season functionality.
- Unmatched Utility & Storage: Exterior features include lockable steel storage boxes, roof racks with brush guards, and a winch-operated spare tire carrier. The vehicle also boasts off-road lighting and a massive 56 cu. ft. climate-controlled garage for gear storage. Every inch of this build has been optimized for functionality and reliability.
Year
1998
Make
Stewart & Stevenson
Model
M1078
Trim/Submodel
-
Engine
6.6L Caterpillar 3116 Turbo Diesel
Transmission
Allison 7-Speed Automatic
Drivetrain
4-Wheel Drive
Body Style
Expedition Vehicle
Odometer
~5,500 mi.
VIN / Chassis
AT8437BDCG
Location
North Bend, WA
Title Status
Clean
Gallery
- All Photos
- Exterior
- Mechanical
- Interior
- Habitat
Founded in 1902 in Houston, Texas, Stewart & Stevenson began as a blacksmith and carriage repair shop before evolving into a global leader in manufacturing and servicing specialized vehicles and equipment. The company became renowned for its contributions to military and industrial applications, including the production of highly durable and adaptable trucks for the U.S. military. Among these, the Family of Medium Tactical Vehicles (FMTV) line, which includes the M1078, stands out as a testament to Stewart & Stevenson's engineering excellence. These vehicles were designed to operate in the harshest environments, from desert heat to arctic cold, showcasing exceptional reliability and versatility.
The 1998 M1078 represents one of the most iconic iterations of the FMTV series. Built to military specifications, the M1078 4x4 is designed as a highly capable cargo and personnel carrier. Its robust Caterpillar 3116 turbo-diesel engine and Allison 7-speed automatic transmission are engineered for long service life and low maintenance. The torsion-free subframe and Central Tire Inflation System (CTIS) provide unmatched off-road capability, allowing the truck to traverse rough terrain with ease while maintaining stability and control. Known for its all-weather performance and durability, the M1078 has been a trusted platform for military and civilian applications worldwide.
Today, these vehicles are prized by adventurers and overlanders for their rugged build quality, reliable powertrain, and ability to be converted into self-sufficient expedition rigs. The 1998 model year, in particular, represents a prime era for Stewart & Stevenson’s FMTV series, blending proven mechanical systems with the modularity and adaptability required for modern expeditions. This rich lineage ensures that any M1078-based expedition vehicle offers a foundation of unparalleled strength and reliability, ready to conquer any challenge.
Features & Specifications
Imagine driving past crowded RV parks, setting up camp on a tranquil beach, or waking up to a stunning mountain vista. This Stewart & Stevenson M1078 is your gateway to the most remote and breathtaking locations. Its robust chassis and luxurious interior habitat allow you to explore confidently, comfortably, and self-sufficiently.
Powertrain & Off-Road Features
- Engine: Caterpillar 3116, recently serviced
- Transmission: Allison 7-speed automatic with off-road mode (70% rear / 30% front, switchable to 50/50)
- Drivetrain: Full-time 4x4 with high-speed gears (74 mph top speed)
- Central Tire Inflation System (CTIS): For on-the-go adjustments
- Torsion-Free Subframe: Soaks up rough terrain for cabin stability
- Dimensions:
- Length: 25’ 8”
- Height: 13’ 0”
- Wheelbase: 153’ 5”
- Box Length: 16’
Interior Living Quarters
- Sleeping: Queen bed with dual closets; dinette converts to a bed at the push of a button
- Kitchen: 2-burner induction cooktop, 5.3 cu. ft. DC fridge/freezer, residential-sized sink with sprayer
- Bathroom: Tile shower with rain head, Air Head composting toilet, and barn-style door
- Additional Features:
- Climate-controlled 56 cu. ft. garage
- External hot/cold shower
- Dual-pane windows with blackout shades
- 6'7" headroom with the roof lowered
Off-Grid Systems
- Solar Power: 1480 watts
- Battery System: 300Ah lithium-ion
- Inverter: 4000-watt pure sine wave
- Water Tanks:
- Freshwater: 140 gallons
- Gray water: 42 gallons
- Heating & Cooling:
- Two 9000 BTU mini-splits (cab and cabin)
- 6-gallon water heater with heat exchanger
Exterior & Utility Features
- Storage: Multiple lockable steel storage boxes, roof rack with brush guard
- Lighting: Dual 32" LED off-road lights, rear spotlights
- Additional Gear:
- Two 169-qt Overland Vehicle Systems dry boxes
- Adjustable stabilizer jacks
- Winch-operated spare tire carrier
Cab Features
- Seating: Reclining lumbar suspension seats
- Comfort: Cab mini-split for heat and A/C, pre-heatable before driving
- Audio: Kenwood CD player with Sirius XM and Bluetooth
Inquire Today.
This Stewart & Stevenson M1078 expedition truck offers the perfect blend of off-road capability, luxurious living, and complete self-sufficiency. Whether you're exploring remote trails or setting up camp under the stars, this vehicle is built to elevate your overland adventures.