Fleetwood Altitude 29H vs Winnebago Spirit 25B
2026 Class C comparison · side-by-side specs, verdict, and who each is best for.
Quick verdict
These two 2026 Class C motorhomes share the Ford E-450 chassis with the 7.3L V8 but split on body size and family fit. The Fleetwood Altitude 29H is 32.5 ft long, 14,500 lb GVWR, single slide, 4,000W generator with prep, 50-amp service, theater seating, residential fridge, queen bed, and sleeps 4. MSRP $151,232.
The Winnebago Spirit 25B is 26.33 ft long (6.17 ft shorter), no slide, generator prep without factory generator, 30-amp service, queen bed, full bath, bunkhouse layout, and sleeps 6. Tanks run 40-gal fresh, 26-gal grey, 21-gal black, 18-gal LP. MSRP $153,197, $1,965 above the Altitude. The Spirit is essentially a Minnie Winnie 25B sibling targeting the same chassis.
The deciding spec for the Class C buyer here is sleep capacity versus floor size and electrical. The Altitude 29H wins on cabin size, factory generator, and 50-amp service. The Spirit 25B wins on bunk space, easier driving, and more LP capacity.
Side-by-side specs
| Fleetwood Altitude 29H | 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 29H wins
- 32.5 ft length gives 6.17 ft more interior
- Single slide for expanded lounge
- 4,000W factory generator with prep
- 50-amp shore service (Spirit is 30-amp)
- $1,965 cheaper at $151,232 MSRP
Where Winnebago Spirit 25B wins
- Sleeps 6 with bunkhouse vs Altitude's 4
- 26.33 ft length is more maneuverable
- Bunkhouse layout supports kids
- 18 gal LP exceeds Altitude's 16 gal
- Shorter wheelbase eases driving
Pick the Fleetwood Altitude 29H if…
Pick the Fleetwood Altitude 29H if you want the largest 2026 Class C floor on the Ford E-450 platform with factory 4,000W generator, residential fridge, theater seating, and 50-amp service. The 32.5 ft length and slide combination gives you proper full-timer accommodations. Best fit: a couple or couple-plus-one full-timing or doing multi-week trips who values the larger floor, factory generator, and the 50-amp electrical that handles two roof ACs without compromise.
Pick the Winnebago Spirit 25B if…
Pick the Winnebago Spirit 25B if you need a Class C that sleeps 6 with a bunkhouse in a shorter, easier-to-drive body. The 26.33 ft length parks in standard pull-throughs the Altitude can't, the bunkhouse adds critical kid sleeping space, and the 18-gal LP runs the furnace longer. Best fit: a family with kids who values the bunkhouse capacity above floor size, prefers the shorter wheelbase, and is willing to pay the $1,965 premium for the family-focused configuration.
Frequently asked
Are the chassis identical?
Yes, both 2026 motorhomes use the Ford E-450 chassis with the 7.3L V8 engine (325 HP on Altitude, 350 HP on Spirit) and share a 14,500 lb GVWR.
Does the Spirit 25B have a slide?
No, the Spirit 25B has zero slides. The Altitude 29H has 1 slide, which adds significant lounge floor when extended.
Which has 50-amp service?
Only the Altitude 29H has 50-amp service. The Spirit 25B runs 30-amp service, which limits simultaneous use of two roof ACs and high-draw appliances.