2024 Thor Palazzo 37.5 vs 2025 Holiday Rambler Admiral 28A
Two noteworthy RVs face off: the 2024 Thor Palazzo 37.5 and the 2025 Holiday Rambler Admiral 28A. From dimensions to amenities, here's the full breakdown.
Specifications Comparison
| Specification | 2024 Thor Palazzo 37.5 | 2025 Holiday Rambler Admiral 28A | Advantage |
|---|---|---|---|
| Category | Class A | Class A | — |
| Year | 2024 | 2025 | 2025 Holiday Rambler Admiral 28A |
| Length | 41.5 ft | 37 ft | — |
| Width | 8 ft | 8 ft | — |
| Height | 12 ft | 12 ft | — |
| Dry Weight | 17,500 lbs | 21,000 lbs | — |
| GVWR | 19,800 lbs | 24,900 lbs | — |
| Sleeping Capacity | 6 | 8 | 2025 Holiday Rambler Admiral 28A |
| Fresh Water | 74 gal | 74 gal | Tie |
| Gray Water | 80 gal | 66 gal | 2024 Thor Palazzo 37.5 |
| Black Water | 40 gal | 36 gal | 2024 Thor Palazzo 37.5 |
| Fuel Capacity | 80 gal | 117 gal | 2025 Holiday Rambler Admiral 28A |
| Horsepower | 438 hp | 386 hp | 2024 Thor Palazzo 37.5 |
| Engine | Cummins ISL 8.9L | Cummins ISB 6.7L | — |
| Slide-Outs | 2 | 2 | Tie |
| Solar | 450 W | 600 W | 2025 Holiday Rambler Admiral 28A |
| Battery | 100 Ah | 350 Ah | 2025 Holiday Rambler Admiral 28A |
| Inverter | 3,000 W | 2,000 W | 2024 Thor Palazzo 37.5 |
| MSRP | $516,000 | $523,000 | 2024 Thor Palazzo 37.5 |
Detailed Comparison
Two noteworthy RVs face off: the 2024 Thor Palazzo 37.5 and the 2025 Holiday Rambler Admiral 28A. From dimensions to amenities, here's the full breakdown.
Dimensionally, you're looking at 41.5 ft for the Thor Palazzo 37.5 and 37.0 ft for the Holiday Rambler Admiral 28A. The Holiday Rambler Admiral 28A carries an extra 3,500 lbs, which affects tow vehicle requirements and fuel economy.
Capacity-wise, expect to sleep 6 in the Thor Palazzo 37.5 versus 8 in the Holiday Rambler Admiral 28A. With 2 and 2 slide-outs respectively, the parked floor plans differ significantly.
Tank capacities are a key off-grid consideration. The Thor Palazzo 37.5 carries 74 gal of fresh water, 80 gal gray, and 40 gal black. The Holiday Rambler Admiral 28A offers 74 gal fresh, 66 gal gray, and 36 gal black. The Holiday Rambler Admiral 28A has the edge for extended dry camping.
Budget-wise, the Thor Palazzo 37.5 is listed at $516,000 compared to $523,000 for the Holiday Rambler Admiral 28A.
For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.
Whichever you choose, you'll be getting a capable rig. Just make sure to inspect one in person before signing.
Individual Overviews
2024 Thor Palazzo 37.5
- Category: Class A
- Length: 41.5 ft
- Weight: 17,500 lbs
- Sleeps: 6
- MSRP: $516,000
2025 Holiday Rambler Admiral 28A
- Category: Class A
- Length: 37 ft
- Weight: 21,000 lbs
- Sleeps: 8
- MSRP: $523,000

