2010 Tiffin Allegro Bus Series, The 2010 Tiffin Allegro Bus 40 QGP (often listed as 40QXP or similar 40' floorplans in this series) is a high-end 40-foot quad-slideout diesel pusher built on a PowerGlide with a 425 HP Cummins engine. It features a bath-and-a-half layout, roughly 90-gallon fresh water capacity, 150-gallon fuel tank, and 10,000 lb towing capacity, offering luxury features like porcelain tile floors, solid surface countertops, and Aqua-Hot heating.
J.D. Power +4
Key Specifications (2010 Allegro Bus 40-foot models)
Engine: Cummins ISL 8.9L Diesel, 425 HP / 1250 lb-ft Torque.
Chassis: PowerGlide Custom Chassis
Transmission: Allison 3000 MH 6-Speed Automatic.
Slides: 4.
Fuel Capacity: 150 Gallons (Dual Fill).
Water Tanks: 90 Gallon Fresh / 56 Gallon Grey / 50 Gallon Black.
Towing Capacity: 10,000 lbs.
Tiffin Motorhomes +3
Interior and Key Features
Layout: 43QGP usually implies Quad Slide (Q), Generator (G), Powerglide (P) or variations, with a master bedroom, rear bath, and a mid-ship half-bath.
Appliances: Residential refrigerator, convection microwave, 3-burner cooktop, stacked washer/dryer, and central vacuum.
Climate & Power: Three 15,000 BTU roof A/C units with heat pumps, Aqua-Hot water system, and a 10kW Onan generator.
Comfort: King Size Sleep Number bed, Ultra Leather power seats, 4 LCD TVs (including exterior).
Construction: One-piece molded fiberglass roof, full-body paint, hydraulic automatic leveling jacks.