2027 Holiday Rambler Armada 40M vs Thor Motor Coach Aria 3901
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Key differences
Both are 2027 Class A · Diesel models. Here's how they differ, from manufacturer specifications.
- The Holiday Rambler Armada 40M is 2″ longer: 40′ 1″ vs 39′ 11″.
- The Holiday Rambler Armada 40M has a 1,280 lb higher GVWR: 36,600 vs 35,320 lb.
- The Holiday Rambler Armada 40M holds 14 gal more fresh water: 105 vs 91 gal.
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YOUR SHORTLIST
Floorplan
PRICING
Manufacturer price (USD)
Not verified
$457,660Manufacturer MSRPChecked 2026-10-23 · Price source
Lowest tracked dealer price (USD)
No recently verified dealer price
No recently verified dealer price
Est. monthly payment (USD)
No verified price to estimate from
$3,703/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
Freightliner Custom Chassis XCM
Freightliner XCR
Engine
Cummins ISL9 / 380 HP
Cummins® ISB-XT 6.7L
GCWR
46,600 lb
45,320 lb
Published towing / receiver rating
10,000 lb
10,000 lb
Fuel tank capacity
100 gal
100 gal
DIMENSIONS & WEIGHTS
Exterior length
40′ 1″
39′ 11″
Exterior width
8′ 6″
8′ 5″
Exterior height
12′ 10″
12′ 6″
Shipping / unloaded weight
—
—
GVWR
36,600 lb
35,320 lb
Listed cargo capacity
—
—
Listed hitch weight
—
—
LIVING & SLEEPING
Sleeping capacity
—
6
Slide-outs
—
—
Main bed
King bed
Not verified
Bunk beds
Not verified
No
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
Not verified
TANKS & EVERYDAY FEATURES
Fresh water
105 gal
91 gal
Gray water
75 gal
51 gal
Black water
50 gal
51 gal
Awning length
18′ 0″
20′ 0″
Shore power / electrical service
Not verified
50 amp power cord listed; service not verified
Solar equipment
Not verified
Not verified
Outdoor kitchen
Not verified
No
Washer/dryer prep
Not verified
Not verified
Microwave
Not verified
Not verified
Cooktop
Not verified
Not verified
Air conditioning
Not verified
Not verified
Electric fireplace
Not verified
Not verified
Backup camera
Not verified
Not verified
Propane tanks
—
—
Tire size
Not verified
Not verified
SOURCES & VERIFICATION
Weight basis
User entered
Unloaded vehicle weight not published
Source checked
2026-10-24 Manufacturer ↗
2026-10-23 Manufacturer ↗
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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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