Airstream RV Interstate Lounge EXT Motor Home Class B - Diesel

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All of your adventures will be easier, greener, safer, and bolder in a new Interstate Lounge EXT Class B diesel motorhome by Airstream. No matter how far you go, the Interstate Lounge EXT will surround you with all of the amenities and comforts you love about your own home while providing you with great fuel economy, flexibility, and exquisite styling. The Interstate's design becomes even more opulent when you choose the Slate Edition which comes with diamond-stitched seating, two-tone cabinetry, and its very own decor options.
The Interstate Lounge EXT is powered by a state-of-the-art Mercedes-Benz turbo diesel engine that delivers 18+ estimated highway MPG and provides 5,000 pounds of towing capacity. The Interstate Lounge includes multiple safety air bags, collision prevention assist, lane keeping assist, and blind spot assist, and it delivers a luxurious interior atmosphere with European-style high-gloss laminate cabinetry made from Italian veneer, UltraLeather seating, and adjustable LED lighting.
Enjoy the unrivaled safety and best-in-class features that one of these Interstate Lounge EXT Class B diesel motorhomes has to offer!
  • Interstate Lounge EXT Std. Model

    Interstate Lounge EXT Std. Model Floorplan Image

    Airstream Interstate Lounge EXT Class B diesel motorhome Standard Model ... more about Interstate Lounge EXT Std. Model

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    Sleeps 2
    Length 24 ft 1 in
    Ext Width 6 ft 8 in
    Ext Height 9 ft 11 in
    Int Height 6 ft 2 in
    Interior Color Columbian Walnut, Light Camel, Beach Wood, Slate
    Exterior Color Jet Black, Brilliant Silver Metallic, Arctic White, Tenorite Grey Metallic
    Hitch Weight 5000 lbs
    Gross Weight 11030 lbs
    Dry Weight 9360 lbs
    Cargo Weight 1400 lbs
    Fresh Water Capacity 32 gals
    Grey Water Capacity 27 gals
    Black Water Capacity 13 gals
    Furnace BTU 16000 btu
    Generator 2.5KW LPG with Auto Start
    Fuel Type Diesel
    Engine Mercedes-Benz 3.0L V6 Turbo
    Chassis Mercedes-Benz Sprinter 3500 Extended
    Horsepower 188 hp
    Fuel Capacity 24.5 gals
    Wheelbase 170 in
    Torque 325 ft-lb
    Refrigerator Size 3.1 cu ft
    Cooktop Burners 2
    Number of Awnings 1
    LP Tank Capacity 14.55
    Water Heater Type On Demand Continuous Flow
    AC BTU 13500 btu
    TV Info 2 LED Widescreen HDTVs
    Awning Info Electric Armless with LED Lights
    Gross Combined Weight 15250 lbs
    Shower Type Wet/Bath Shower
    Electrical Service 30 amp

Interstate Lounge EXT Features:

Standard Features (2019)



  • Full Body Kit
  • Hidden Hitch Cover - Rear Bumper
  • 3M Protective Film - Rear Bumper
  • Fog Lamps
  • Alcoa® DuraBright Aluminum Wheels
  • Bi-Xenon Headlights with Washer System
  • Heated Windshield
  • Power Heated Mirrors
  • Power Armless Awning with Auto-Retract
  • Power Entry Step (Sliding Side Door)
  • LED Lighting - Patio, Service Box Locations, Adjustable Awning, and Under Carriage
  • Locking Service Boxes
  • Exterior Shower with Hot and Cold Water
  • LP Accessory Hook-Up (Grill)
  • Power Rear Screen
  • Side Screen Door (Accordion Style)
  • 110V Outlet and HDMI Output


  • Air Ride Suspension
  • 4-Wheel Drive
  • 4-Point Hydraulic Level Jack System


  • Heated Driver/Passenger Seats
  • Tilt and Telescopic Steering Wheel
  • Multi-Functional Steering Wheel
  • Locking Glove Box
  • Entry Door Lighting
  • Overhead Map Lights
  • In-Dash Maintenance Monitoring System
  • 8" Touch Screen NAV/SAT Radio/DVD System
  • Rear and Side View Camera Monitor
  • Custom Carpet Floor Mats
  • Privacy Shades


  • Front Bed System

Main Cabin

  • Signature Aluminum Ceiling and Trim
  • High-Gloss Laminate Cabinetry
  • Flush-Mount and Solid Shut Cabinets
  • UltraLeather® Seating
  • Magic Suede® Walls and Window Coverings
  • Power Day/Night Window Shades
  • Plank-Style Synthetic Flooring
  • Adjustable LED Lighting
  • Dupont Corian® Pedestal Table
  • Two LED Widescreen HDTVs
  • Blu-Ray® Player
  • Power Rear Sofa
  • Pass-Thru Rear Storage
  • USB Charging Ports
  • Rear Hidden Floor Storage (N/A with Air Ride Suspension)
  • Additional Rear Seat
  • Fantastic Fan with Rain Sensor


  • Matte Finish Laminate Cabinetry (Slate Edition)
  • Ultraleather® Diamond Pattern Seating (Slate Edition)
  • Woven Synthetic Flooring (Slate Edition)
  • Overhead Wardrobe Closet
  • Rear Cabin Carpet Kit (Black)
  • Numbered Edition Plaque (Slate Edition)

Bathroom (Wet Bath)

  • Toilet
  • One-Piece Shower
  • Sink with Articulated Mirror
  • Retractable Clothesline
  • Towel Rack
  • Riveted Aluminum Porthole Door


  • Louvered Door (Slate Edition)


  • Dupont Corian® Countertop with Backsplash
  • Dupont Corian® Galley Flip-Up Shelf
  • Sink with Integrated Cover
  • Cooktop with Integrated Cover


  • Solid Surface Countertop with Backsplash (Slate Edition)
  • Solid Surface Galley Flip-Up Shelf (Slate Edition)


  • Multiple Safety Air Bags
  • Collision Prevention Assist
  • Lane Keeping Assist
  • Blind Spot Assist
  • Front and Rear Parking Assist
  • High Beam Assist
  • Rear and Side Camera Assist
  • Rain Sensing Windshield Wipers
  • Spare Tire
  • Two Child Safety Tether Anchors


See us for a complete list of features and available options!

All standard features and specifications are subject to change.


In 1931, Airstream began with Wally Byam’s dream: to build a travel trailer that would move like a stream of air, be light enough to be towed by a car, and create first-class accommodations anywhere.


Every inch of an Airstream has a function. Airstream is the most thoroughly tested brand in trailer history. Its engineering is the culmination of over 80 years of experience plus millions of miles on roads throughout the world.


With Airstream, there is no planned obsolescence. Airstreams of the Thirties are still on the road today, sturdy and modern as ever. They are intended as a lifetime investment in happiness.