Redefining the Backcountry Basecamp: All-New Winnebago ARKA™

Heavy-Duty RAM® 5500 Foundation | True 4-Season Capability | 14-Day Off-Grid Autonomy

Step beyond the reach of standard motorhomes with the Winnebago ARKA™—an expedition-grade adventure truck engineered from the ground up for rugged terrain, extreme climates, and long-term off-grid independence. Pairing a heavy-duty turbo-diesel platform with commercial-grade modular construction, the ARKA delivers uncompromised basecamp comfort wherever the trail takes you.

Extreme Chassis & Backcountry Architecture

• RAM® 5500 4x4 Foundation: Powered by a 6.7L Cummins® Turbo Diesel paired with an 8-speed automatic transmission, backed by an impressive 15,000-lb towing capacity.

• Torsion-Free Subframe System: Proprietary 4-point pillow-block mounting allows the living box and truck cab to articulate independently over uneven, punishing terrain.

• Trail-Ready Construction: Durable fiberglass exterior surfaces with Azdel® composite backing panels, a one-piece molded fiberglass roof, and optimized approach/departure angles.

• Full-Height Heated Gear Garage: Generous rear equipment bay featuring van-style access doors and integrated 500-lb-rated L-track tie-down systems for bikes, recovery gear, and heavy cargo.

Extended Off-Grid Power & All-Weather Engineering

• EcoFlow® 48V Power Hub Architecture: High-capacity 48V electrical backbone featuring a 3,600W inverter, integrated high-output alternator charging, and expandable roof solar support.

• True Extreme Climate Range (-10°F to 120°F): High-efficiency R-15 roof and floor insulation paired with R-12 wall insulation to withstand peak heat and bitter cold without losing efficiency.

• Elwell Timberline Hydronic Heating: Advanced multi-zone hydronic system delivers radiant in-floor heating, interior warmth, and continuous on-demand hot water.

• Industry-First Heat Recovery Ventilation (HRV): Dedicated Pioneer ventilation system actively manages cabin humidity, mitigates condensation, and continuously exchanges fresh air.

• Guzzle H2O UV Water Purification: Multi-stage filtration and UV treatment paired with 60-gallon insulated/heated fresh and 40-gallon insulated/heated gray holding tanks.

Modular, Hard-Wearing Interior Living

• Flexible Sleep & Lounge Systems: Convertible front over-cab bunk (configurable as king, queen, or twin layouts) combined with a convertible dinette module to seat up to 6 and sleep up to 4 travelers.

• All-Aluminum Cabinetry: Lightweight, weather-impervious aluminum cabinetry with positive-locking compression latches engineered not to swell, rattle, or delaminate on washboard roads.

• Dry Utility Bath: Dedicated enclosed shower with bamboo floor mat, folding step/seat, and a Thetford® cassette toilet system (with prep for composting toilet configurations).

• Dual-Pane Euro Windows: Top-hinged acrylic windows featuring integrated thermal roller blinds and insect screens.

• Winnebago Connect™: Central 10-inch touchscreen and companion mobile app offering real-time system monitoring, digital pitch/roll inclinometer for leveling, pet climate alerts, and battery/tank metrics even while offline.

Key Specifications (ARKA™ 20Z)