1999 Stewart & Stevenson LMTV 6x6

Originally acquired with plans for a premium expedition camper conversion, this 1999 Stewart & Stevenson M1085A1 LWB is now available for sale by private party in Doral, FL after those plans changed. Showing just 6,400 miles, this military-derived 6×6 is powered by the sought-after Caterpillar 3126 turbodiesel backed by an Allison MD3070PT automatic transmission and dual-range transfer case. Offered with a clean Florida title, current insurance, no reported rust, and extensive recent maintenance, it presents an increasingly rare opportunity to start with a solid, road-ready foundation rather than a worn-out surplus truck.

• Rare LWB Platform: Desirable long-wheelbase M1085A1 chassis with only 6,400 miles, clean Florida title, current registration and insurance, and no reported rust. An ideal starting point for an expedition camper, overland build, toy hauler, race support truck, or commercial service vehicle.
• Legendary Caterpillar Power: Powered by the dependable 330-horsepower Caterpillar 3126 turbodiesel paired with the Allison MD3070PT automatic transmission and a selectable high/low-range 6×6 drivetrain for serious off-road capability and heavy-duty hauling.
• Recent Mechanical Refresh: Numerous maintenance items have already been addressed, including four new batteries, a new shift selector, repaired air/hydraulic cab lifting pump, new transmission cooling fan, new heater, new Racor fuel filter, and new diesel filter, reducing much of the deferred maintenance often associated with surplus military trucks.
• Electrical Modernization: The factory military lighting controls have been replaced with a modern five-gang switch panel, while additional upgrades include dual voltmeters, a Blue Sea 12-circuit 100-amp fuse block, 12V power outlet, USB and USB-C charging ports, interior LED lighting, and courtesy door lighting provisions.
• Expedition-Ready Improvements: New CTIS harness and controller, LED headlights with integrated DRLs and turn signals, LED rear lighting, marker lights, yellow fog lights, Hella dual-tone 24-volt horn, updated wiper arms, front recovery shackles, and a license plate bracket with LED illumination further prepare the truck for civilian use and future customization.

Why This M1085A1 Stands Out

As military trucks become increasingly popular foundations for expedition campers and global overland builds, finding one that's both titled and sorted is becoming more difficult. Many surplus examples require extensive electrical work, deferred maintenance, or title challenges before they're ready for conversion. This M1085A1 avoids many of those hurdles. The major maintenance items have already been addressed, the lighting and electrical systems have been modernized for civilian usability, and the truck retains its rugged military drivetrain while offering a clean title and exceptionally low mileage. Whether your vision includes a composite expedition habitat, motorcycle or UTV hauler, mobile workshop, recovery vehicle, or off-grid support truck, the rare long-wheelbase chassis provides ample room to build without sacrificing capability.

Powertrain

•  Caterpillar 3126 7.2L turbodiesel
•  330 horsepower
•  Allison MD3070PT automatic transmission
•  Full-time 6×6 drivetrain
•  High/Low transfer case
•  Central Tire Inflation System (CTIS)
•  Approximately 6,400 miles

Electrical & Interior

•  Modern 5-gang switch panel
•  Blue Sea 12-circuit 100A fuse block
•  Dual voltmeters
•  12V accessory outlet
•  USB and USB-C charging ports
•  Interior LED dome lighting
•  Courtesy door lighting (partially completed)

Exterior & Equipment

•  Rare long-wheelbase cargo chassis
•  Clean Florida title
•  No reported rust
•  Good-condition tires
•  New CTIS controller and harness
•  LED headlights with DRLs and integrated turn signals
•  LED rear lighting
•  LED marker lights
•  Yellow fog lights
•  Hella 24V dual-tone horn
•  New wiper arms
•  Front recovery shackles
•  License plate bracket with LED illumination '

Recent Maintenance

•  New shift selector
•  Four new batteries
•  New heater
•  Cab lift pump repaired
•  New transmission cooling fan
•  New Racor fuel filter
•  New diesel filter

With exceptionally low mileage, a clean Florida title, extensive maintenance already completed, and the coveted long-wheelbase configuration, this 1999 Stewart & Stevenson M1085A1 represents a rare opportunity to skip much of the initial sorting process and begin building the expedition truck you've envisioned. Whether destined to become a globe-trotting overlander or a heavy-duty support rig, its Caterpillar powertrain, Allison automatic transmission, and proven 6×6 drivetrain provide an outstanding foundation.

Inquire today.