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2027 Airstream Atlas 25MS vs Newmar Northern Star 3709

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Key differences

Here’s how they differ, from manufacturer specifications.

  • The Airstream Atlas 25MS is a class c · diesel and the Newmar Northern Star 3709 is a class a · diesel.
  • The Newmar Northern Star 3709 is 13′ 1″ longer: 37′ 10″ vs 24′ 9″.
  • The Airstream Atlas 25MS is 19,973 lb lighter unloaded: 10,227 vs 30,200 lb.
  • The Newmar Northern Star 3709 has a 25,875 lb higher GVWR: 38,000 vs 12,125 lb.
  • The Newmar Northern Star 3709 holds 82 gal more fresh water: 105 vs 23 gal.
  • The Airstream Atlas 25MS has a $91,946 lower published MSRP: $335,900 vs $427,846.
YOUR SHORTLIST
Airstream Atlas

25MS

2027 · Class C · Diesel

Specs & prices
Newmar Northern Star

3709

2027 · Class A · Diesel

Specs & prices
Floorplan
PRICING
Manufacturer price (USD)
$335,900Manufacturer starting priceChecked 2026-10-27 · Price source
$427,846Manufacturer starting MSRPChecked 2026-10-24 · Price source
Lowest tracked dealer price (USD)
No recently verified dealer price
No recently verified dealer price
Est. monthly payment (USD)
$2,718/mo20 years at 8.99% APR with 10% down, based on the MSRP. Before tax and fees.Customize this payment
$3,462/mo20 years at 8.99% APR with 10% down, based on the MSRP. Before tax and fees.Customize this payment
MOTORHOME
Engine fuel type
Diesel
Diesel
Chassis
Mercedes-Benz® Sprinter 4500; published drivetrain: RWD
Freightliner
Engine
Mercedes-Benz® 2.0 L Turbo Charged 4-Cylinder High Output Diesel
Cummins B 6.7 L / 360 HP
GCWR
15,250 lb
48,000 lb
Published towing / receiver rating
5,000 lb
10,000 lb
Fuel tank capacity
25 gal
100 gal
DIMENSIONS & WEIGHTS
Exterior length
24′ 9″
37′ 10″
Exterior width
9′ 1.5″
8′ 5.5″
Exterior height
10′ 6″
12′ 10″
Shipping / unloaded weight
10,227 lb
30,200 lb
GVWR
12,125 lb
38,000 lb
Listed cargo capacity
1,898 lb
—
Listed hitch weight
—
—
LIVING & SLEEPING
Sleeping capacity
2
—
Slide-outs
—
3
Main bed
73 in x 73 in (Power Sofa with Integrated Murphy Bed)
King bed
Bunk beds
Not verified
No
Dinette
Pedestal Table (2); Ultraleather® Seating
Not verified
Bathroom
Rear-Spanning Shower and Lavvy; Porcelain Toilet
One full bathroom and one half bath
Refrigerator
9.1 cu ft with Stainless Insert (12 V)
Not verified
TANKS & EVERYDAY FEATURES
Fresh water
23 gal
105 gal
Gray water
31 gal
65 gal
Black water
27 gal
45 gal
Awning length
14′ 6″
—
Shore power / electrical service
30 amp standard
50 amp standard
Solar equipment
400 W (100 W Chassis 300 W House)
Not verified
Outdoor kitchen
Not verified
Not verified
Washer/dryer prep
Not verified
Not verified
Microwave
✓ Yes
Not verified
Cooktop
1,000 W Single Burner Induction (True Induction)
Not verified
Air conditioning
15,000 BTU Quietstream™ Ducted with Heat Pump
Not verified
Electric fireplace
Not verified
Not verified
Backup camera
true
Not verified
Propane tanks
—
—
Tire size
Not verified
Not verified
SOURCES & VERIFICATION
Weight basis
Manufacturer unit base weight; configuration-dependent values unverified
Approximate unloaded vehicle weight (full fuel, engine oil and coolant; options change weight)
Source checked
2026-10-27 Manufacturer ↗
2026-10-24 Manufacturer ↗

Manufacturer floorplan images © their respective manufacturers. Specs checked October 19, 2026; exact-unit labels and production options may differ. “Not verified” or a dash means we have no confirmed value. “Not listed” means the applicable manufacturer equipment was checked but does not mention the feature; it does not mean “No.” “Conflicting data” means manufacturer entries disagree. “Optional” equipment is available but is not confirmed as standard. Camera prep does not confirm an installed camera. Weights are kept separate: unloaded weight, GVWR, cargo capacity, and hitch weight. Confirm every specification for the exact model year and configuration with the manufacturer. This tool does not establish towing compatibility.

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