Airstream Rangeline 21PS vs Thor Sequence 20L
The difference that matters
Same chassis, same 20.9 ft length, same 9,350 lb GVWR and nearly the same price, around $161,000 for the Rangeline and $161,560 for the Sequence. What differs is the power system. The Rangeline carries a 3.5 kWh heated lithium bank, a 3,000 W inverter and gas-fired hydronic heat and hot water. The Sequence uses two 100 Ah AGM batteries, a 1,000 W inverter and a 2.8 kW gas generator. Each has 200 W of solar and a single induction burner.
Off grid, the Airstream runs quietly on its batteries and can power more at once through the larger inverter; the Thor relies on the generator for heavy loads such as the A/C. The Sequence offers an expanding sleeper sofa and an optional SkyBunk, while the Rangeline adds sleeping for two more only with its optional pop-top.
The Thor is rated to tow 5,000 lb against the Rangeline's 3,500 lb, and the Rangeline carries more water at 28/19/12 gal against 22/13/13.5.
- Airstream Rangeline 21PS
- Frequent off-grid campers, traveling as a couple, who want a quiet lithium system with hydronic heat instead of a generator.
- Thor Sequence 20L
- Van buyers who tow a small trailer or want generator backup and an expanding sofa for an occasional guest.
Weights
Weights
2027 maker figures
- GVWR
- 9,350 lb
- Dry weight (UVW)
- 7,661 lb
- Occupant + cargo (OCCC)
- 1,689 lb
- Towing capacity
- 3,500 lb
1,689 lb between brochure dry weight and GVWR. Water (8.3 lb a gallon), food, gear, propane and dealer-added options all come out of it.
Weights
2027 maker figures
- GVWR
- 9,350 lb
- Dry weight (UVW)
- not published
- Occupant + cargo (OCCC)
- not published
- Towing capacity
- 5,000 lb
Spec for spec
| Airstream Rangeline 21PS | Thor Sequence 20L | |
|---|---|---|
| Dry weight (UVW) | 7,661 lb | — |
| GVWR | 9,350 lb | 9,350 lb |
| Cargo capacity (CCC / OCCC) | 1,689 lb | — |
| GVWR minus dry weight | 1,689 lb | — |
| Towing capacity | 3,500 lb | 5,000 lb |
| Exterior length | 20.9 ft | 20.9 ft |
| Exterior height | 9.4 ft | 9.5 ft |
| Sleeps | 2 | 2 |
| Slide-outs | 0 | — |
| Fresh water | 28 gal | 22 gal |
| Gray water | 19 gal | 13 gal |
| Black water | 12 gal | 13.5 gal |
| Factory solar | 200 W | 200 W |
| House battery | 3.5 kWh Deep Cycle Lithium Batteries with Built in Heater | Two (2) 100 Ah Group 31 AGM Batteries |
| Generator | — | 50 State 2.8 kW Gas Generator |
| Chassis | Ram ProMaster® 3500 | RAM Promaster® 3500 Window Van Chassis |
| Engine | 3.6 L Pentastar® V6 24 V VVT Engine | 3.6L Pentastar V6 (276 HP & 250 lb-ft Torque) |
| Fuel | Gas | Gas |
Bold is the lighter or larger figure. A dash means the maker does not publish it.
To scale
- Airstream Rangeline 21PS · 20.9 ft long · 9′5″ tall
- Thor Sequence 20L · 20.9 ft long · 9′6″ tall
Airstream Rangeline 21PS
Full spec sheet, sources →
Thor Sequence 20L
Full spec sheet, sources →

