Every May, the overland community packs into Flagstaff, Arizona, for Overland Expo West, a gathering that’s equal parts trade show, camping trip, and cult reunion for off-road enthusiasts. The field fills with mud-caked Land Cruisers, roof-tent setups, and expedition rigs, each boasting off-road and off-grid prowess. This year, one rig that has become the talking point even before the event has commenced is Winnebago’s all-new adventure truck, Arka.
First reported by RV Business, the 2027 Winnebago Arka 20Z is built on the Ram 5500 chassis, packing a 6.7-liter Cummins Turbo Diesel that produces 360 horsepower and 800 lb-ft of torque through an eight-speed automatic transmission. Gear Patrol calls it a “fitting choice” for a rig of this ambition. In short, the Arka is a luxury off-road RV sitting atop one of the most capable heavy-duty truck platforms available, purpose-built for towing, rough terrain, and serious long-distance travel.
As detailed in the company’s press release, Winnebago handed the Ram 5500 4×4 Crew Cab chassis to BuckStop Truckware for extensive modifications. BuckStop ditched the factory dually rear setup in favor of a single-rear-wheel conversion, then wrapped all four corners in 41-inch off-road tires.
Additional hardware includes a winch-ready front bumper, integrated branch guards, an onboard air compressor, and a 480-amp dual-alternator setup to keep the house battery fed. The entire rig can tow 15,000 lbs and carries a 19,500-pound GVWR, meaning hauling a trailer or toy hauler is well within its capability.
The Arka’s body is a one-piece molded fiberglass shell, lending it both durability and a clean, purposeful look. Visitors can access the RV through rear bay doors that open into a dinette area, while the cabover bunk above the cab sleeps two in a king, queen, or twin configuration, giving the Arka a total sleeping capacity of four.
The rear area converts into a wall-to-wall sleeping space, but fold it away, and it transforms into a full-height heated gear garage complete with van-style rear doors, L-track tie-downs, and aluminum cabinetry designed to handle damp gear without swelling or warping. The RV also features a hydronic heating system that runs through in-floor tubing, keeping both the living space and tanks warm on cold nights. Other features include a heat-recovery ventilation system that manages interior humidity. Not to mention standard features like a refrigerator, shower, and an array of cabinets.
The off-grid capability is where the Arka truly justifies its price tag. It runs on a 48V electrical architecture paired with up to 15 kWh of Lithionics lithium batteries, 800 watts of rooftop solar expandable to 1,200 watts, and a 3,600-watt inverter managed through an EcoFlow power hub.
A 60-gallon heated freshwater tank delivers continuous hot water via an Elwell Timberline system, while a Guzzle H2O UV purifier handles water sourced from less-than-ideal places along the way. Winnebago claims up to 14 days of fully off-grid capability with the AC off, a figure that puts the Arka in serious expedition territory.
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The tech is just as practical. Winnebago Connect lets you check tank levels, battery status, climate settings, and even the RV’s tilt for easy leveling, with no jacks needed. There’s also a Pet Minder feature to keep an eye on the dog while you’re away. Most importantly, everything works offline, which matters when you’re far from cell service. It also supports Starlink, so staying connected in remote areas is a hardware choice, not a software problem.
Priced at $332,000 (approx) and available in Carbon or Oxide interior finishes, the Arka is aimed squarely at the buyer who has done budget builds, knows exactly what they need, and has decided to buy the right rig once and for all. The price makes sense when you consider it starts with a Ram 5500 4×4 Crew Cab, an expensive heavy-duty truck in its own right, and then adds extensive off-road modifications that push costs even further. For those of us who can’t afford the $3,000 ThAircamper is probably just fine.
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