2027 Tiffin Allegro Bus

Full specifications

Model year

2027

Variant

Model-year overview

Chassis maker

Not documented

Chassis

PowerGlide XC raised-rail rear-engine diesel

Engine maker

Cummins

Engine

L9

Displacement (L)

Not documented

Horsepower

450

Torque (lb-ft)

1250

Transmission

Allison 3000 MH 6-speed automatic

Length (ft)

Not documented

Height (ft)

13.33

Width (in)

101

Slides

4

Floorplan

Not documented

Generator maker

Onan

Generator

Quiet Diesel

Generator (kW)

10

Fuel (gal)

150

Fresh water (gal)

96

Gray water (gal)

91

Black water (gal)

53

Luxury systems

Aqua-Hot 450D hydronic heating; three 15,000-BTU roof air conditioners with heat pumps; 3,000-watt inverter-charger; three 200-watt solar panels standard (six optional); heated tile floor; air leveling with hydraulic jacks; adaptive cruise control and collision mitigation; steerable tag axle on the 45-foot floorplans.

Intended use

Not documented

Floorplans offered in 2027

36 AP40 IP45 BP45 OPP

Other 2027 records

• 36 AP
• 40 IP
• 45 BP
• 45 OPP

What changed this year

Against the 2026 sheet, the 45 BP floorplan is added, the water tanks change from 100/100/55 to 96/91/53 gallons (fresh/grey/black), overall height is listed at 13 ft 4 in instead of 13 ft 3 in, and three 200-watt solar panels move from optional to standard.

Notes

Length varies by floorplan, from 38 ft 2 in (36 AP) to 45 ft (45 BP and 45 OPP); see the floorplan records. Engine figures are for the standard Cummins L9; the optional Cummins X15 on the 45 BP and 45 OPP is rated 605 hp and 1,950 lb-ft. The sheet lists only the Allison 3000 MH transmission. DEF tank 13 gallons (36 AP, 40 IP) or 15 gallons (45-foot plans). The sheet names the chassis only as PowerGlide XC. The sheet does not print a model year on the page; the year comes from its file name and Tiffin's library label. The product brochure linked here was not opened.