Roadtrek has owned the Class B market since 1990 — tens of thousands of loyal owners on this continent, and a reputation built on one idea: a motorhome that drives like a family van. The industry called it the benchmark of the segment, and the RS Adventurous sat at the top of the line — the largest Class B Roadtrek built, on the Mercedes Sprinter chassis.
That’s the whole trick of this rig. Twenty-two feet. No trailer, no toad, nothing to back up. It fits a normal parking space and the Sprinter drives closer to a large car than a truck — but inside there’s a real bathroom, a real kitchen, and a bed you don’t have to assemble.
Park it at a trailhead, a tailgate, a hotel lot, or your own driveway. It just looks like a van. You keep the small footprint and still have your own clean facilities wherever you stop.
Off grid, it’s genuinely self-sufficient. The Onan LP generator, house battery bank, propane furnace and LP/electric water heater mean you’re not hunting for hookups, and the three-way fridge runs on propane, 12V or shore power. Dry camp for days and stay comfortable doing it.
Inside: swivel captain’s chairs that turn the cabin into a living room, a power rear sofa that becomes the bed, dining table, microwave, two-burner cooktop, and a wet bath with an outdoor shower for the muddy stuff. There’s also a third berth — a bunk that lays across the swiveled front seats. I have it and will sell it separately; it’s not part of the asking price — same for the under-awning mat, the forward-facing dash camera, and the other camping extras. Ask and I’ll price them; whatever you don’t want, I remove before the sale.
And it does all of it on diesel. The RS is known for 20–23 MPG, and I average right around 20 on the highway — with 21 on a good run. That’s small-SUV economy in something you can sleep, shower, cook and live in — while towing up to 5,000 lbs behind you.
The first-generation Mercedes Sprinter (the T1N, built through 2006) with the 2.7L OM647 inline-five turbodiesel is the one the Sprinter community actively hunts for. Simpler than what replaced it, no DEF, no emissions maze — just a mechanical diesel with a legendary reputation for running 400,000, 600,000, even a million miles when it’s maintained.
At 162,198 miles, this one is barely broken in by T1N standards — and it just got a fresh top end. These get harder to find every year, because the people who own them don’t sell them.
Here is a list of all the maintenance and repairs I know of that have been done to the van.
The coolant pump went out and the engine overheated.
I could have done the minimum to get it running again. I didn’t. Since the engine was already coming apart, I had the whole top end gone through while it was open — new head gasket, head pulled and resurfaced, new water pump, new serpentine belt, fresh oil and filter, fresh coolant, and the one-time-use injector hold-down bolts replaced rather than reused.
The glow plugs got finished at the same time. The previous owner had already replaced all but one — the last one was seized, so he left it. With the head off I had that one machined out and replaced, so every glow plug in it is new. On an OM647 that stuck plug is a miserable, expensive job, and it is behind you now.
The engine isn’t the only thing that got attention. There are two A/C systems in this van and both are strong — the roof air blows ice cold, and the cab A/C was completely replaced in September 2025, right before I picked the van up: new compressor, condenser, drier and O-rings, flushed and recharged. It also wears four Cooper Discoverer HT3 tires fitted at 148,685 miles — only about 13,500 miles ago, so they are still on full tread.
Since I’ve owned it I’ve added new front dash speakers, fixed both door latches so they lock and unlock properly, upgraded the backup camera to a larger display, replaced the fuel-sender gasket (the known T1N weak spot, done the week after I bought it), repaired the transmission sensor plug, and kept the generator serviced and exercised. It’s all itemized in the list.
I’ve owned it since September 2025 and kept a full fuel and maintenance log the entire time. Every invoice is available — just ask and I’ll send them over.
Click any photo to enlarge. Shot September 2026, right after the detail. What you see is what you get.
Everything works as far as I know — and I’ll tell you straight if something doesn’t.
A note on the year, because it trips everybody up. Roadtrek bought these as 2005 Dodge Sprinter vans, then spent about a year building them out and sold them as 2006 Roadtrek Adventurous RS. So the certificate of title reads 2006 Roadtrek RS Adventurous — but run the VIN through any decoder and it comes back a 2005 Dodge Sprinter chassis. Both are correct. It’s normal for these rigs, the DMVs have never been consistent about it, and it’s why you’ll see the same van advertised both ways. Happy to show you the title and the bill of sale.
This is a twenty-year-old camper van with real miles on it. It has the normal cosmetic wear you’d expect — I’m not going to pretend otherwise, and I’m not going to photograph around it.
What it also has is a fresh, documented top end, working systems, and an owner who kept every receipt and every fill-up in a log. Everything on this page came out of that log.
Come look at it. Drive it. Bring a mechanic if you want one.
It’s in Huntsville, Alabama. Reach out and I’ll send the full maintenance log, the repair invoices, and any additional photos you want.