What Sprinter sizes does Foundation offer?
Two: the FV-144 (73.5 sq ft) and the FV-170 (95.5 sq ft), both on the Mercedes-Benz Sprinter 3500XD cutaway, with a 7-foot interior height, 36-inch cab-over, and full cab passthrough.
Platform · Mercedes-Benz Sprinter
A Foundation Sprinter camper is not an interior built inside a factory cargo van. We build our insulated composite camper body on the Mercedes-Benz Sprinter 3500XD cab chassis — a Sprinter cutaway, turbo-diesel, with all-wheel drive available. Because the cutaway is only the cab and frame, we mount a purpose-built, square, four-season composite habitat behind it — a Sprinter composite camper body with true standing room — in two lengths: the compact FV-144 and the 95.5-square-foot FV-170, built on the Sprinter 170-inch wheelbase.
At a glance
Specifications
| Model | Chassis | Wheelbase | Overall length | Walkable floor | Max GVWR | Fuel |
|---|---|---|---|---|---|---|
| FV-144 | Mercedes-Benz Sprinter 3500XD Cutaway | 144" | 20' | 73.5 sq ft | 11,000 lb | 25 gal |
| FV-170 | Mercedes-Benz Sprinter 3500XD Cutaway | 170" | 23'3" | 95.5 sq ft | 11,030 lb | 24.5 gal |
Download the full 2026 spec pack (every body size, dimension, option, and warranty) from the Platforms page.
A high-roof cargo Sprinter curves in at the roof and walls and arrives uninsulated. Building on the 3500XD cutaway instead lets us install a square composite body that is wider and taller up top than the van’s roof curves away from — real width and headroom, flat walls with integrated mounting, a 36-inch cab-over, and a full passthrough to the cab. It is a better base for a four-season build than furring out a cargo van.
In other words, the Sprinter cab chassis supplies the engine, drivetrain and cab, and Foundation supplies the habitat: a Sprinter box camper whose structure is designed as a square, insulated composite body. The FV-170, our Sprinter 170 camper body, is the larger of the two sizes. For buyers considering a traditional van conversion, a cutaway chassis with a purpose-built composite body provides another approach: the driving platform remains familiar while the habitat is designed from the beginning as a square, insulated structure. See the full explanation in box van and cutaway camper bodies, or the overview of the composite camper body.
People choose the Sprinter for its turbo-diesel powertrain and Mercedes-Benz cab. Available AWD adds backcountry capability, and Foundation builds on the 3500XD cutaway in two lengths: the FV-144 and the FV-170, listed at up to 11,030 lb GVWR.
It suits buyers who want a diesel, or who prefer the Sprinter cab and driving environment. If you want a gasoline engine and a choice of three body lengths, look at the Transit — the same Foundation body fits either.
Real builds
Common questions
Two: the FV-144 (73.5 sq ft) and the FV-170 (95.5 sq ft), both on the Mercedes-Benz Sprinter 3500XD cutaway, with a 7-foot interior height, 36-inch cab-over, and full cab passthrough.
Yes — AWD is available on the Sprinter and is a common choice for backcountry travel. For low-range 4x4 with large all-terrain tires, the Ford E-Series conversion goes further.
Yes. A cargo-van conversion builds an interior inside the factory van body. Foundation starts with the Sprinter 3500XD cab chassis and installs a purpose-built, insulated composite body behind the cab. The FV-170 is that body on the 170-inch wheelbase, with flat walls, true 90° corners and continuous insulation.
The body is the same on both, so it comes down to the chassis: Sprinter for a turbo-diesel powertrain and the Mercedes-Benz cab; Transit for a gasoline V6 and three body lengths. See the Transit platform page for the comparison.
Related
Start a project
Tell us the size and options you want and we’ll put together pricing and the full spec pack for a Sprinter build — or just call the shop.
The message form is loading. You can also email info@foundationvehicles.com or call 720-610-1562 any time.