2014.5 Airstream Interstate Extended Lounge 3500 (Mercedes-Benz Sprinter 3500 chassis) for sale.
Mileage: ~68,000
This EXT Lounge has a power rear sofa, four swivel captain's chairs, fully-enclosed wet bath, full galley complete with 3.1 cu. ft. refrigerator/freezer, 1.2 cu. ft. convection microwave and two-burner propane range, two 22" HD LED TVs, 50-watt solar panel, and extensive storage. It comfortably seats 9 adults (driver, passenger, and two mid-cabin captain's chairs, plus five additional seats on the rear sofas). The interior remains factory original (Asian Night theme, Onyx color).
The chassis is powered by Mercedes-Benz's 3.0L turbo-diesel V6, paired with a 5-speed automatic transmission and power windows and locks . There's a great set of safety and convenience features, including a rearview camera, parking and blind sport assist, lane-keeping and collision-prevention systems. It also has a 7" navigation/infotainment system with Bluetooth, Sirius, Pandora and iPod/iPhone connectivity, though not CarPlay, and a multifunction steering wheel. It features a heated windshield and an integrated headlight washer system.
Unit is in great condition and drives excellently. It spent December-June in Florida and was brought back to Maine in July 2026. It has primarily been used for short weekend road trips. Happy to answer questions and/or provide further details beyond the below:
ELECTRICAL
13,500 BTU low-profile air conditioner and MaxxAir roof vent with built-in thermostat
16,000 BTU LP furnace and 6-gallon LP/electric water heater
30-amp shore power with Energy Management System
2.5 kW Quiet LP Generator Remote Start
12V and 120V outlets (interior and exterior)
Cable TV hookups (interior and exterior)
Converter/1,000-watt inverter
PLUMBING
18.9-gallon LP tank with remote fill
32-gallon fresh-water tank
27-gallon gray-water tank
15-gallon black-water tank with flush
Macerator pump discharge system and electric-retract hose reel
Exterior shower
City-water hookup
EXTERIOR
Exterior Length: 24'4.5"
Exterior Height: 9'7" (74 1/4" interior headroom)
Towing Capacity: 5000 lbs (tongue weight of 500 lbs.)
Factory-installed 2-inch towing receiver
13' power awning with full lighting and wind sensor
GVWR: 11,030 lbs
GCWR: 15,250 lbs
RECENT MAINTENANCE
Tires: 4/6 replaced 10/2025
House exhaust fans: Replaced 10/2026
House batteries: Two AGM auxiliary house batteries replaced 12/2025
Chassis battery: Replaced 12/2025
Macerator: Replaced 6/2026
VIN available to serious prospective buyers, and independent inspections are welcome. Thank you!
