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Is the International MXT 4x4 the Most eXtreme Truck? We Think So.

Winner of the mine-is-bigger-than-yours game.

What's almost a foot wider than a Humvee, almost a foot taller than a Ram Power Wagon, consumes a fleet of Jeep Gladiators for lunch, holds its own in a military setting, and can be privately owned by Average Joe alongside his Toyota RAV4? An International MXT, of course, which just might be the most extreme truck in existence. (The MXT is variously known as the Most eXtreme Truck or the Military eXtreme Truck.)

Part of the XT Extreme Truck Series (International XT) of large, big-ass pickup trucks produced by Navistar International from the 2004 to 2008 model years, the MXT was the hip and cool cousin—actually runt cousin, believe it or not—of the strong and athletic RXT and the even bigger and bolder CXT. (While we're on the topic, check out this 2005 International CXT feature from Four Wheeler, and this expedition MXT built by UNICAT.) The short run is likely due to demand drying up with the recession of 2008-2009.

Interestingly, the MXT had its own purpose-built frame, hood, front fenders, and bed. (Unlike its cousins, the pickup bed was not sourced from the Ford F-350 Super Duty dually.) With headlights from the 9000-Series semi trucks, and a grille from the DuraStar medium-duty rigs, the MXT begged to hang out with the big boys. A look at the MXT's stats confirm its girth and capability: a curb weight of 10,500 pounds, a max GVWR of 14,500 pounds, a max payload capacity of 4,000 pounds, and a maximum towing rating of 15,500 pounds.

2008 International MXT Sold for 98K:

The 2008 International MXT crew cab pickup pictured in this story sold via Bring a Trailer for $98,000, which is probably fair for such a rare, low-mileage truck packed full of mods. Those in the market for the biggest truck any Average Joe can legally drive are likely to have a decent pile of disposable cash, anyway. Let's be real: There's not much justification for owning an International MXT other than it being freaking awesome.


As for the mods on the 35,000-mile 2008 International MXT, it's powered by the International 6.0-liter VT365 diesel V-8—yeah, it's similar the Power Stroke 6.0s in Super Duty trucks that get such a bad rap for reliability issues—but B&S Customizing in Idaho Falls, Idaho, went through the 300-hp, 530-lb-ft engine and ensured its longevity by performing all the standard 6.0 fixes. It also installed a Garrett GT37V turbocharger. The transmission is an Allison 2000 five-speed automatic.


The MXT also has a bevy of off-road accessories, including a custom front bumper with Baja Designs Squadron Pro lights and a 50-inch curved light bar; more lights and light bars from Rough Country; a Warn 16.5 Ti-s winch; a custom roof rack; bedliner applied to the grille, fenders, rocker panels, and bumper; an Alpine audio system; 12-volt outlets; keyless entry; a painted undercarriage; and sound deadening to make the cab whisper quiet. It rolls on 43-inch Goodyear tires wrapped around black powder-coated 20-inch 8-lug wheels.


Big, fun trucks like the MXT make quite a splash in the small, strange pool of consumer-based medium-duty pickup trucks, often turning adults into kids when they see such freakish behemoths. This new MXT owner has joined the fraternity of folks who need to prepare for a barrage of questions whenever they slide out from behind the wheel.