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Year
2012
Year
2024
Parent Company
Thor Industries, Inc.
Parent Company
Thor Industries, Inc.
Generic Type (Primary)
Travel Trailer
Generic Type (Primary)
Class B
Make
Airstream
Make
Airstream
Display Name
International Serenity 23D
Display Name
Interstate 19 X 4WD
Manufacturer Country
USA
Manufacturer Country
USA
Introduction Year
2008
Introduction Year
2024
Regional Availability
All Regions
Regional Availability
All Regions
Price
Standard
Price
Standard
MSRP
$64,370
MSRP
$199,940
Basic Warranty (Months)
24
Basic Warranty (Months)
-
Structure Warranty (Months)
24
Structure Warranty (Months)
-
Roof Warranty (Years)
2
Roof Warranty (Years)
-
Basic Warranty (Miles/Months)
-
Basic Warranty (Miles/Months)
36000 / 36
Structure Warranty (Months/Miles)
-
Structure Warranty (Months/Miles)
36 / 36000
Chassis Warranty (Months/Miles)
-
Chassis Warranty (Months/Miles)
36 / 36000
Powertrain Warranty (Months/Miles)
-
Powertrain Warranty (Months/Miles)
60 / 100000
Dimensions
Standard
Dimensions
Standard
Weight
Standard
Weight
Standard
Capacities
Standard
Capacities
Standard
Holding Tanks
Standard
Holding Tanks
Standard
Number Of Fresh Water Holding Tanks
1
Number Of Fresh Water Holding Tanks
1
Number Of Gray Water Holding Tanks
1
Number Of Gray Water Holding Tanks
1
Number Of Black Water Holding Tanks
1
Number Of Black Water Holding Tanks
1
Number Of Propane Tanks
2
Number Of Propane Tanks
1
Length (in/mm/ft/m)
276 / 7000 / 23 / 7
Length (in/mm/ft/m)
233 / 5900 / 19.42 / 5.9
Width (in/mm)
96 / 2438.4
Width (in/mm)
79.5 / 2019.3
Height (in/mm)
113 / 2870.2
Height (in/mm)
117 / 2971.8
Interior Height (in/mm)
76.5 / 1943.1
Interior Height (in/mm)
74 / 1879.6
Dry Weight (lbs/kg)
4701 / 2132.4
Dry Weight (lbs/kg)
7814 / 3544.4
Payload Capacity (lbs/kgs)
1299 / 589.2
Payload Capacity (lbs/kgs)
1236 / 560.6
GVWR (lbs)
6000
GVWR (lbs)
9050
Hitch Weight (lbs)
720
Hitch Weight (lbs)
-
Total Fresh Water Tank Capacity (gal/l)
39 / 147.6
Total Fresh Water Tank Capacity (gal/l)
20 / 75.7
Total Gray Water Tank Capacity (gal/l)
21 / 79.5
Total Gray Water Tank Capacity (gal/l)
16 / 60.6
Total Black Water Tank Capacity (gal/l)
18 / 68.1
Total Black Water Tank Capacity (gal/l)
9 / 34.1
Propane Tank (s)
Standard
Propane Tank (s)
Standard
Total Propane Tank Capacity (gal/lbs)
14.2 / 60
Total Propane Tank Capacity (gal/lbs)
7.8 / 33.1
Wheelbase (in/mm)
-
Wheelbase (in/mm)
144 / 3657.6
Towing Capacity (lbs/kgs)
-
Towing Capacity (lbs/kgs)
5000 / 2268
Fuel Capacity (gal/l)
-
Fuel Capacity (gal/l)
24.5 / 92.7
Construction
Standard
Construction
Standard
Body Material
Aluminum
Body Material
Aluminum
Sidewall Construction
Aluminum
Sidewall Construction
Fiberglass
Number of Doors
1
Number of Doors
2
Sliding Glass Door
No
Sliding Glass Door
No
Awning
Standard
Awning
Standard
Number of Awnings
1
Number of Awnings
1
Power Retractable Awning
No
Power Retractable Awning
Yes
Screened Room
No
Screened Room
No
Leveling Jacks
Standard
Leveling Jacks
-
Leveling Jack Type
Front Manual / Rear Manual
Leveling Jack Type
-
Sky Light
Standard
Sky Light
Standard
Roof Vents
Standard
Roof Vents
Standard
Propane Tank Cover
Standard
Propane Tank Cover
-
Exterior Shower
Standard
Exterior Shower
Standard
Rear Bumper Drain Hose Carrier
Standard
Rear Bumper Drain Hose Carrier
-
Awning Length (ft/m)
13.4 / 4.1
Awning Length (ft/m)
-
Power Retractable Entry Steps
-
Power Retractable Entry Steps
Standard
Kitchen / Living Area
Standard
Kitchen / Living Area
Standard
Kitchen / Living Area Flooring Type
Vinyl
Kitchen / Living Area Flooring Type
Vinyl
Kitchen Table Configuration
Bench Seats
Kitchen Table Configuration
Pedestal Table
Kitchen Location
Center
Kitchen Location
Center
Living Area Location
Center
Living Area Location
Rear
Layout
Oven / Stove
Layout
Stove
Number Of Oven Burners
3
Number Of Oven Burners
2
Overhead Fan
Yes
Overhead Fan
No
Microwave Oven
Standard
Microwave Oven
Standard
Refrigerator
Standard
Refrigerator
Standard
Refrigerator Size
Mid-Size
Refrigerator Size
Compact
Refrigerator Power Mode
Electric / Propane
Refrigerator Power Mode
Electric
Sink / Faucet
Standard
Sink / Faucet
Standard
Sink Cover / Cutting Boards
Standard
Sink Cover / Cutting Boards
Standard
Sofa
Standard
Sofa
Standard
Number Of Sofas
1
Number Of Sofas
2
Sofa Material
Cloth
Sofa Material
Leather
Beds
Standard
Beds
Standard
Max Sleeping Count
5
Max Sleeping Count
3
Number Of Double Beds
1
Number Of Double Beds
-
Number Of Convertible / Sofa Beds
2
Number Of Convertible / Sofa Beds
1
Bunkhouse
No
Bunkhouse
No
Bed Spreads
Standard
Bed Spreads
-
Bathroom
Standard
Bathroom
Standard
Number Of Bathrooms
1
Number Of Bathrooms
1
Bathroom Flooring Type
Vinyl
Bathroom Flooring Type
Vinyl
Bathroom Location
Rear
Bathroom Location
Center
Toilet
Standard
Toilet
Standard
Toilet Type
Porcelain
Toilet Type
Plastic
Shower
Standard
Shower
Standard
Door Type
Curtain
Door Type
Curtain
Bathroom Sink
Standard
Bathroom Sink
Standard
Bathroom Medicine Cabinet
Standard
Bathroom Medicine Cabinet
-
Bathroom Vent / Fan System
Standard
Bathroom Vent / Fan System
-
Power Vent Fan
Standard
Power Vent Fan
Standard
Reclining Sofa
-
Reclining Sofa
No
Heated
-
Heated
No
Bathroom Mirror
-
Bathroom Mirror
Standard
Wheels
Standard
Wheels
Standard
Wheels Composition
Aluminum
Wheels Composition
Steel
Number Of Axles
2
Number Of Axles
-
Tires
Standard
Tires
Standard
Rear Wheel Diameter
14
Rear Wheel Diameter
16
Spare Tire
Standard
Spare Tire
Standard
Spare Tire Location
Exterior Mounted
Spare Tire Location
Interior Mounted
Rear Tire (Full Spec)
14-Inch Tires
Rear Tire (Full Spec)
LT245/75R 16E
Front Tire Width
-
Front Tire Width
245
Front Tire Aspect Ratio
-
Front Tire Aspect Ratio
75
Front Tire Speed Rating
-
Front Tire Speed Rating
E
Front Wheel Diameter
-
Front Wheel Diameter
16
Rear Tire Width
-
Rear Tire Width
245
Rear Tire Aspect Ratio
-
Rear Tire Aspect Ratio
75
Rear Tire Speed Rating
-
Rear Tire Speed Rating
E
Front Wheel Width (in)
-
Front Wheel Width (in)
6.5
Rear Wheel Width (in)
-
Rear Wheel Width (in)
6.5
Front Tire (Full Spec)
-
Front Tire (Full Spec)
LT245/75R 16E
Brakes
Standard
Brakes
Standard
Rear Brake Type
Electric Drum
Rear Brake Type
Hydraulic Disc
Front Brake Type
-
Front Brake Type
Hydraulic Disc
Anti-Lock Brakes
-
Anti-Lock Brakes
Standard
Fresh Water Holding Tank Gauge
Standard
Fresh Water Holding Tank Gauge
Standard
Gray Water Holding Tank Gauge
Standard
Gray Water Holding Tank Gauge
Standard
Black Water Holding Tank Gauge
Standard
Black Water Holding Tank Gauge
Standard
Propane Tank Gauge
-
Propane Tank Gauge
Standard
GPS
-
GPS
Standard
Water Pump Power Display
-
Water Pump Power Display
Standard
Voltage Meter
-
Voltage Meter
Standard
Hitch Lights
Standard
Hitch Lights
Standard
Exterior Flood Lights
-
Exterior Flood Lights
Standard
Battery
Standard
Battery
Standard
Battery Power Converter
Yes
Battery Power Converter
Yes
Battery Converter Amps
55
Battery Converter Amps
-
Prewiring
Standard
Prewiring
Standard
Air Conditioning Prewiring
Yes
Air Conditioning Prewiring
Yes
Cable Prewiring
Yes
Cable Prewiring
Yes
Heat Prewiring
Yes
Heat Prewiring
Yes
TV Antenna Prewiring
Yes
TV Antenna Prewiring
Yes
Satellite Prewiring
Yes
Satellite Prewiring
Yes
Washer / Dryer Prewiring
No
Washer / Dryer Prewiring
No
Exterior Plugs
Standard
Exterior Plugs
Standard
Ground Fault Plugs
Standard
Ground Fault Plugs
Standard
Solar Battery Charger
Optional
Solar Battery Charger
Standard
Phone Prewiring
-
Phone Prewiring
No
Generator
-
Generator
Standard
Other Electrical
-
Other Electrical
Optional
Air Conditioning
Standard
Air Conditioning
Standard
Air Conditioning Type
Automatic
Air Conditioning Type
Automatic
Heater
Standard
Heater
Standard
Heater Type
Automatic
Heater Type
Automatic
Water Heater Tank
Standard
Water Heater Tank
Standard
Water Heater Pump Power Mode
Electrical / Propane
Water Heater Pump Power Mode
Electrical
Water Heater Tank Bypass
Yes
Water Heater Tank Bypass
-
Freeze Proof Insulation
Standard
Freeze Proof Insulation
-
Water Heater Tank Capacity (g/l)
6 / 22.7
Water Heater Tank Capacity (g/l)
-
Smoke Detector
Standard
Smoke Detector
Standard
Carbon Monoxide Detector
Standard
Carbon Monoxide Detector
Standard
Propane Alarm
Standard
Propane Alarm
Standard
Number Of Emergency Exits
-
Number Of Emergency Exits
1
Emergency Exit (s)
-
Emergency Exit (s)
Standard
Radio
Standard
Radio
Standard
Number Of Radios
1
Number Of Radios
1
Satellite
No
Satellite
No
Speakers
Standard
Speakers
Standard
Surround Sound
No
Surround Sound
No
CD Player
Standard
CD Player
Standard
Number Of Discs
1
Number Of Discs
1
DVD Player
Standard
DVD Player
-
Television
Standard
Television
Standard
Number Of Televisions
1
Number Of Televisions
1
Retractable Roof Antenna
Standard
Retractable Roof Antenna
Standard
Speaker Location (s)
Interior
Speaker Location (s)
Interior
Paint
Standard
Paint
Standard
Interior Decor
Standard
Interior Decor
Standard
Wallpaper
No
Wallpaper
Yes
Interior Wood Finish
No
Interior Wood Finish
Yes
Curtains / Shades
Standard
Curtains / Shades
Standard
Engine
-
Engine
Standard
Engine Brand Name
-
Engine Brand Name
Mercedes-Benz®
Chassis Brand
-
Chassis Brand
Mercedes-Benz® Sprinter
Engine Type
-
Engine Type
V6
Chassis Model
-
Chassis Model
2500
Cylinders
-
Cylinders
6
Horsepower RPM
-
Horsepower RPM
3800
Torque RPM
-
Torque RPM
1400
Turbocharged
-
Turbocharged
Yes
Supercharged
-
Supercharged
No
Fuel Type
-
Fuel Type
Diesel
Fuel Requirements
-
Fuel Requirements
Regular
Carburetion
-
Carburetion
Standard
Carburetion Type
-
Carburetion Type
Fuel Injected
Horsepower (bhp)
-
Horsepower (bhp)
188
Torque (Nm)
-
Torque (Nm)
440
Displacement (l)
-
Displacement (l)
3
Transmission
-
Transmission
Standard
Transmission Brand
-
Transmission Brand
Mercedes-Benz®
Transmission Type
-
Transmission Type
Automatic
Number Of Speeds
-
Number Of Speeds
7
Overdrive
-
Overdrive
Yes
Driveline Type
-
Driveline Type
4X4
Rear Hitch
-
Rear Hitch
Standard
Rear Hitch Type
-
Rear Hitch Type
Receiver
Seat Type
-
Seat Type
Bucket
Seat Material
-
Seat Material
Leather
Power Adjustable Seat
-
Power Adjustable Seat
Yes
Reclining Seats
-
Reclining Seats
Yes
Swivel Seats
-
Swivel Seats
Yes
Seat Armrests
-
Seat Armrests
Yes
Seat Specifications
-
Seat Specifications
Standard
Number Of Seats
-
Number Of Seats
2
Number Of Rows
-
Number Of Rows
1
Heated Seat
-
Heated Seat
Standard
Power Windows
-
Power Windows
Standard
Rear Video Backup Camera
-
Rear Video Backup Camera
Standard
Cruise Control
-
Cruise Control
Standard