Tiffin · Class A · Model-year overview

2026 Tiffin Phaeton

Four floorplans from about 38 to 45 feet on a Freightliner PowerGlide XC chassis with a 450-horsepower Cummins L9. The 44 OH has a tag axle.

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
Freightliner PowerGlide XC 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
2026
Variant
Model-year overview
Chassis maker
Freightliner
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)
13.25
Width (in)
101
Slides
Not documented
Floorplan
Not documented
Generator maker
Onan
Generator
Quiet Diesel
Generator (kW)
10
Fuel (gal)
100
Fresh water (gal)
100
Gray water (gal)
100
Black water (gal)
55
Luxury systems
LP furnaces, or an optional hydronic heating and electric appliance package with an Aqua-Hot 450D; three 15,000-BTU low-profile roof air conditioners; 3,000-watt inverter; hydraulic leveling jacks; adaptive cruise control and collision mitigation.
Intended use
Not documented

Floorplans offered in 2026

35 CH37 BH40 IH44 OH

Other 2026 records

What changed this year

The sheet marks the front axle rating, GVWR and GCWR as updated: GVWR is 40,000 lb (46,000 lb on the 44 OH), up from 39,660 and 45,660 lb on the 2025 sheet. The inverter is listed at 3,000 watts, against 2,000 watts on the 2025 sheet.

Notes

Length and slide-out count vary by floorplan; see the floorplan records. LP tank 35.7 gallons (none listed for the 44 OH). The capacities table lists a 10-gallon DEF tank for a PowerGlide chassis and 13 gallons for a Freightliner chassis. The sheet does not print a model year on the page; the year comes from its file name and Tiffin's library label. This sheet is the revision dated 12.1.25. The product brochure linked here was not opened.

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 Facts are checked against these sources; tell us if you find one that is out of date.

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2026 Tiffin Phaeton: specifications | Motorcoach.direct