2025 Winnebago Adventurer 29B vs 2024 Winnebago Sunstar 33K
Two popular options on many shoppers' shortlists — the 2025 Winnebago Adventurer 29B and the 2024 Winnebago Sunstar 33K. Let's see how they compare across the specs that matter most.
Specifications Comparison
| Specification | 2025 Winnebago Adventurer 29B | 2024 Winnebago Sunstar 33K | Advantage |
|---|---|---|---|
| Category | Class A | Class A | — |
| Year | 2025 | 2024 | 2025 Winnebago Adventurer 29B |
| Length | 26.5 ft | 34.5 ft | — |
| Width | 8.5 ft | 8 ft | — |
| Height | 11 ft | 11.5 ft | — |
| Dry Weight | 31,200 lbs | 33,500 lbs | — |
| GVWR | 34,800 lbs | 35,700 lbs | — |
| Sleeping Capacity | 6 | 7 | 2024 Winnebago Sunstar 33K |
| Fresh Water | 96 gal | 79 gal | 2025 Winnebago Adventurer 29B |
| Gray Water | 74 gal | 67 gal | 2025 Winnebago Adventurer 29B |
| Black Water | 42 gal | 41 gal | 2025 Winnebago Adventurer 29B |
| Fuel Capacity | 83 gal | 143 gal | 2024 Winnebago Sunstar 33K |
| Horsepower | 427 hp | 362 hp | 2025 Winnebago Adventurer 29B |
| Engine | Cummins ISB 6.7L | Chevrolet 6.0L V8 | — |
| Slide-Outs | 1 | 4 | 2024 Winnebago Sunstar 33K |
| Solar | 350 W | 250 W | 2025 Winnebago Adventurer 29B |
| Battery | 200 Ah | 150 Ah | 2025 Winnebago Adventurer 29B |
| Inverter | 2,000 W | 1,500 W | 2025 Winnebago Adventurer 29B |
| MSRP | $374,000 | $294,000 | 2024 Winnebago Sunstar 33K |
Detailed Comparison
Two popular options on many shoppers' shortlists — the 2025 Winnebago Adventurer 29B and the 2024 Winnebago Sunstar 33K. Let's see how they compare across the specs that matter most.
In terms of footprint, the Winnebago Adventurer 29B stretches 26.5 ft while the Winnebago Sunstar 33K spans 34.5 ft. Weight-wise, the Winnebago Adventurer 29B is the lighter rig at 31,200 lbs versus 33,500 lbs.
The Winnebago Adventurer 29B sleeps 6 while the Winnebago Sunstar 33K accommodates 7. Slide-outs play a role in livability: the Winnebago Adventurer 29B has 1 and the Winnebago Sunstar 33K has 4.
For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Winnebago Adventurer 29B at 96 gallons versus 79 gallons. Solar-wise, you get 350W on the Winnebago Adventurer 29B and 250W on the Winnebago Sunstar 33K. Battery banks are 200 Ah and 150 Ah.
At $374,000 MSRP for the Winnebago Adventurer 29B and $294,000 for the Winnebago Sunstar 33K, the Winnebago Sunstar 33K saves you $80,000.
If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.
At the end of the day, the best RV is the one that fits your travel dreams and budget. Either of these is a worthy choice.
Individual Overviews
2025 Winnebago Adventurer 29B
- Category: Class A
- Length: 26.5 ft
- Weight: 31,200 lbs
- Sleeps: 6
- MSRP: $374,000
2024 Winnebago Sunstar 33K
- Category: Class A
- Length: 34.5 ft
- Weight: 33,500 lbs
- Sleeps: 7
- MSRP: $294,000