Tiffin · Class A · Model-year overview
2024 Tiffin Allegro Bus
Four floorplans from about 37 to 45 feet on Tiffin's PowerGlide raised-rail chassis. A 450-horsepower Cummins L9 is standard, and a 605-horsepower Cummins X15 is optional on the two 45-foot floorplans.
Key facts re-checked. Owners, dates and prices were re-checked against their sources. A full second review is still to come.
- Price when new
- Not documented
- Length
- Not documented
- Chassis
- Tiffin PowerGlide raised-rail rear-engine diesel
- Engine
- Cummins L9 · 450 hp
These values describe this model year and configuration. An individual coach can differ, so check it against the coach’s own records. “Not documented” means the encyclopedia does not have that fact yet.
Full specifications
- Model year
- 2024
- Variant
- Model-year overview
- Chassis maker
- Tiffin
- Chassis
- PowerGlide 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)
- 13.25
- Width (in)
- 101
- Slides
- Not documented
- Floorplan
- Not documented
- Generator maker
- Onan
- Generator
- Quiet Diesel
- Generator (kW)
- 10
- Fuel (gal)
- 150
- Fresh water (gal)
- 100
- Gray water (gal)
- 100
- Black water (gal)
- 55
- Luxury systems
- Aqua-Hot 450D hydronic heating; air leveling with hydraulic jacks.
- Intended use
- Not documented
Floorplans offered in 2024
35 CP40 IP45 FP45 OPP
Other 2024 records
What changed this year
Tiffin's 'What's New for 2024' post (August 2023) lists a JBL sound system and advanced monitor system as newly standard, a Starlink Pro option, powered storage slide-out tray options, the Firefly Eclipse control module, a vented rear engine door and updated fabric suites. The brochure adds that rear drum brakes are no longer available.
Notes
Length varies by floorplan, from 37 ft 5 in (35 CP) to 45 ft; see the floorplan records. Engine and transmission figures are for the standard Cummins L9; the optional Cummins X15 (605 hp, 1,950 lb-ft) on the 45 FP and 45 OPP is paired with an Allison 4000 MH. DEF tank 10 gallons with the L9 or 15 gallons with the X15. Slide-out count is left blank because the brochure's table gives the 45 FP four slide-outs and the 45 OPP three, the reverse of the 2025 sheet. The brochure calls PowerGlide Tiffin's proprietary chassis. The file's embedded title is dated 2023 9-29.
Brochures and sources
Links open the original page. Facts are checked against these sources; tell us if you find one that is out of date.
2024 Allegro Bus coaches for sale
See matching listings in the Motorcoach.direct marketplace.