2026 Thor Magnitude for Sale

The Magnitude (sold as Magnitude GRAND) is Thor Motor Coach's Super C — a Class C body mounted on a beefy Ford F-600 medium-duty chassis with the 6.7L Power Stroke turbo diesel. That gives it commercial-grade towing capacity and, on 4x4 plans, genuine off-pavement capability that no van-chassis Class C can match, all wrapped in the familiar over-cab Class C profile. It runs roughly 33 to 37 feet across plans like the X32, BB35, L35, and R36, several offered with bunks, a washer/dryer prep, and a residential interior. For 2026 the Magnitude GRAND adds a standard 500-watt solar charging system with a power controller, leaning into the boondocking and far-from-hookups mission that draws buyers to a Super C in the first place. It is the most expensive and most capable Class C Thor builds, and it still carries the brand's value-build DNA, so the usual cautions on finish and service apply. But for towing a big trailer or trailering toys far off the beaten path, the diesel Super C drivetrain is in a different league from the gas Class C lineup.

Looking for a Thor Magnitude for sale?

You're in the right place. We don't sell the Magnitude off a lot — we work for you, find the cleanest one on the market new or used, inspect it, and negotiate it. Below is everything you need to know before you shop: the real specs, every floor plan, the photos, what it tends to sell for, and a straight read on what owners love and what they grumble about.