Tiffin Allegro Red 33AA vs Fleetwood Flair 33B6

Tiffin · Class A

The difference that matters

Two 35-foot Class As in different classes. The Tiffin Allegro Red 33AA is a rear-engine diesel on a Freightliner XCM raised-rail chassis with a 380 hp Cummins L9 making 1,150 lb-ft, a 38,320 lb GVWR, four slides and a 10,000 lb tow rating. It carries an 8.0 kW Onan diesel generator, six 6 V AGM batteries and a 2,000 W inverter, with tanks of 90 gallons fresh, 70 gray and 50 black.

The Fleetwood Flair 33B6 is a gas coach on the Ford F-53 with the 7.3L V8 and a 22,000 lb GVWR, two slides and an 8,000 lb tow rating. It is laid out for families: a jackknife sofa and flip-up top bunk, a Hide-A-Loft electric drop-down bed rated for 600 lb, a dinette, an extended galley with a large pantry, a 12 V residential refrigerator, a tankless water heater and an Onan 5.5 kW generator. Its tanks are smaller at 50, 37 and 37.

Families with kids are the Flair's audience. Long-haul couples who want diesel power are the Allegro Red's.

Tiffin Allegro Red 33AA: Long-distance drivers towing up to 10,000 lb, as couples, who want a diesel pusher with four slides.
Fleetwood Flair 33B6: Families who want bunks and a drop-down loft bed in a gas Class A.

Weights

2027 maker figures

GVWR: 38,320 lb
Dry weight (UVW): not published
Occupant + cargo (OCCC): not published
Towing capacity: 10,000 lb

Weights

2027 maker figures

GVWR: 22,000 lb
Dry weight (UVW): not published
Occupant + cargo (OCCC): not published
Towing capacity: 8,000 lb

Spec for spec

	Tiffin Allegro Red 33AA	Fleetwood Flair 33B6
GVWR	38,320 lb	22,000 lb
Towing capacity	10,000 lb	8,000 lb
Exterior length	35.2 ft	34.58 ft
Exterior height	12.8 ft	12.33 ft
Sleeps	6	—
Slide-outs	4	2
Fresh water	90 gal	50 gal
Gray water	70 gal	37 gal
Black water	50 gal	37 gal
Factory solar	None	None
House battery	(6) 6V 210Ah extended-cycle AGM	—
Generator	8.0 kW Onan Quiet Diesel	Onan 5.5kW w/ dual 13,500 BTU A/C (standard on 32S/33B6 per product guide)
Chassis	Freightliner XCM raised-rail rear-engine diesel	Ford F-53 22K
Engine	Cummins L9 380 HP, 1,150 lb-ft	Ford 7.3L V8, 335 hp / 468 lb-ft, 6-speed auto
Fuel	Diesel	Gas

Bold is the lighter or larger figure. A dash means the maker does not publish it.

To scale

051015202530354045 ft

Tiffin Allegro Red 33AA · 35.2 ft long · 12′10″ tall
Fleetwood Flair 33B6 · 34.58 ft long · 12′4″ tall

Drawn to one scale from each camper's listed length and, where the maker publishes it, its exterior height. Outlines are typical for the camper type, not traced from this model. The figure is a 6 ft person. The dashed blue line is 25 ft, the length about 93% of national park campgrounds accept.

Tiffin Allegro Red 33AA

Full spec sheet, sources →

Fleetwood Flair 33B6

Full spec sheet, sources →