2025 Winnebago Adventurer 29B vs 2024 Entegra Cornerstone 45X
Before committing to the 2025 Winnebago Adventurer 29B or the 2024 Entegra Cornerstone 45X, it pays to understand exactly where each one shines and where it falls short.
Specifications Comparison
| Specification | 2025 Winnebago Adventurer 29B | 2024 Entegra Cornerstone 45X | Advantage |
|---|---|---|---|
| Category | Class A | Class A | — |
| Year | 2025 | 2024 | 2025 Winnebago Adventurer 29B |
| Length | 26.5 ft | 28 ft | — |
| Width | 8.5 ft | 8 ft | — |
| Height | 11 ft | 12 ft | — |
| Dry Weight | 31,200 lbs | 21,800 lbs | — |
| GVWR | 34,800 lbs | 25,500 lbs | — |
| Sleeping Capacity | 6 | 6 | Tie |
| Fresh Water | 96 gal | 114 gal | 2024 Entegra Cornerstone 45X |
| Gray Water | 74 gal | 44 gal | 2025 Winnebago Adventurer 29B |
| Black Water | 42 gal | 43 gal | 2024 Entegra Cornerstone 45X |
| Fuel Capacity | 83 gal | 135 gal | 2024 Entegra Cornerstone 45X |
| Horsepower | 427 hp | 344 hp | 2025 Winnebago Adventurer 29B |
| Engine | Cummins ISB 6.7L | Ford 7.3L V8 | — |
| Slide-Outs | 1 | 3 | 2024 Entegra Cornerstone 45X |
| Solar | 350 W | 450 W | 2024 Entegra Cornerstone 45X |
| Battery | 200 Ah | 350 Ah | 2024 Entegra Cornerstone 45X |
| Inverter | 2,000 W | 1,500 W | 2025 Winnebago Adventurer 29B |
| MSRP | $374,000 | $362,000 | 2024 Entegra Cornerstone 45X |
Detailed Comparison
Before committing to the 2025 Winnebago Adventurer 29B or the 2024 Entegra Cornerstone 45X, it pays to understand exactly where each one shines and where it falls short.
Dimensionally, you're looking at 26.5 ft for the Winnebago Adventurer 29B and 28.0 ft for the Entegra Cornerstone 45X. The Winnebago Adventurer 29B carries an extra 9,400 lbs, which affects tow vehicle requirements and fuel economy.
The Winnebago Adventurer 29B sleeps 6 while the Entegra Cornerstone 45X accommodates 6. Slide-outs play a role in livability: the Winnebago Adventurer 29B has 1 and the Entegra Cornerstone 45X has 3.
For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Entegra Cornerstone 45X at 114 gallons versus 96 gallons. Solar-wise, you get 350W on the Winnebago Adventurer 29B and 450W on the Entegra Cornerstone 45X. Battery banks are 200 Ah and 350 Ah.
At $374,000 MSRP for the Winnebago Adventurer 29B and $362,000 for the Entegra Cornerstone 45X, the Entegra Cornerstone 45X saves you $12,000. With only a 3% price difference, the choice comes down to features rather than cost.
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.
Remember, the perfect RV is the one you'll actually use. Pick the one that excites you most and hit the road.
Individual Overviews
2025 Winnebago Adventurer 29B
- Category: Class A
- Length: 26.5 ft
- Weight: 31,200 lbs
- Sleeps: 6
- MSRP: $374,000
2024 Entegra Cornerstone 45X
- Category: Class A
- Length: 28 ft
- Weight: 21,800 lbs
- Sleeps: 6
- MSRP: $362,000