Fleetwood Altitude 31W vs Winnebago Spirit 25B
2027 Class C comparison · side-by-side specs, verdict, and who each is best for.
Quick verdict
These two Class C motorhomes both ride the Ford E-450 chassis with 7.3L V8. The 2027 Fleetwood Altitude 31W is 32.5 ft long, single slide, queen rear, theater seating, residential fridge, 4,000W factory generator, 50-amp service, solar prep. 2027 cosmetic refresh. Sleeps 4. MSRP $151,232.
The 2026 Winnebago Spirit 25B is 26.33 ft, no slide, 30-amp service, generator prep only, queen bed, full bath, bunkhouse, 40-gal fresh, 26-gal grey, 21-gal black, 18-gal LP. Sleeps 6. MSRP $153,197, $1,965 over the Altitude. The Spirit is Winnebago's value sibling of the Minnie Winnie 25B with the same floorplan.
This Class C pair decides on the same axis as the Altitude 29H comparison: bigger body, slide, 50-amp, and factory generator on the Altitude 31W; sleeps-6 bunkhouse and shorter wheelbase on the Spirit 25B. The 2027 cosmetic refresh is a tiebreaker for buyers wanting the newer model year.
Side-by-side specs
| Fleetwood Altitude 31W | Winnebago Spirit 25B | |
|---|---|---|
| MSRP | $151,232 | $153,197 |
| Length | 32'6" | 26'4" |
| Dry weight | — | — |
| GVWR | 14,500 lbs | 14,500 lbs |
| Sleeps | 4 | 6 |
| Slides | 1 | 0 |
| Fresh tank | 50 gal | 40 gal |
| Grey tank | 36 gal | 26 gal |
| Black tank | 36 gal | 21 gal |
| LP | 16 gal | 18 gal |
| Solar | — | — |
| Inverter | — | — |
| Generator | 4000W | — |
| Bath | — | full |
| Bed | queen | queen |
| 4-season | No | No |
| Off-road | No | No |
| Outdoor kitchen | No | No |
| Washer/dryer | none | none |
| Residential fridge | Yes | No |
Where Fleetwood Altitude 31W wins
- 32.5 ft length is 6.17 ft more interior
- Single slide expands lounge floor
- 4,000W factory generator with prep
- 50-amp service supports dual roof ACs
- $1,965 lower MSRP plus 2027 model year
Where Winnebago Spirit 25B wins
- Sleeps 6 with bunkhouse vs Altitude's 4
- 26.33 ft length fits standard pull-throughs
- Bunkhouse for kids' sleeping
- 18 gal LP exceeds Altitude's 16 gal
- Shorter wheelbase improves driving
Pick the Fleetwood Altitude 31W if…
Pick the 2027 Fleetwood Altitude 31W if you want the bigger Class C body, single slide, factory 4,000W generator, residential fridge, theater seating, and 50-amp service on the latest model year. The 32.5 ft length plus slide gives proper couple-focused full-timer floor, and 50-amp handles two roof ACs and residential loads. Best fit: a couple or empty-nester pair full-timing or doing multi-week trips, who values floor size and electrical above sleep count, and treats the 2027 refresh as bonus value with the $1,965 savings.
Pick the Winnebago Spirit 25B if…
Pick the 2026 Winnebago Spirit 25B if you need the Class C bunkhouse for kids and prefer a shorter, easier-to-drive body. The 26.33 ft length parks easier in standard campsites, the bunkhouse covers kid sleeping in 26 ft, and the 18-gal LP runs the furnace longer for cold weather. Best fit: a family with kids who needs the bunk layout, prefers the more maneuverable body, and is willing to pay the $1,965 premium for the family-focused configuration despite the 2026 model year.
Frequently asked
Same engine on both?
Yes, both use the Ford 7.3L V8 on the Ford E-450 chassis. Altitude 31W rates 325 HP, Spirit 25B rates 350 HP. Both share 14,500 lb GVWR.
What's the 2027 Altitude upgrade?
Updated decor and graphics on the 2027 Altitude 31W. Floorplan, chassis, engine, generator, and feature set are unchanged from 2026.
Which sleeps more people?
The Spirit 25B sleeps 6 with bunkhouse. The Altitude 31W sleeps 4 with queen-bed rear-bedroom configuration.