Year 2009 Parent Company Tiffin Motorhomes, Inc. Generic Type (Primary) Class A Make Tiffin Motorhomes Display Name Allegro Bus 43 QRP Manufacturer Country USA Engine Engine Standard Engine Brand Name Cummins Chassis Brand Tiffin Engine Type I6 Diesel Pusher Chassis Model Powerglide Cylinders 6 Horsepower RPM 2000 Torque RPM 1300 Turbocharged Yes Supercharged No Fuel Type Diesel Fuel Requirements Regular Carburetion Standard Carburetion Type Fuel Injected Horsepower (bhp) 425 Torque (Nm) 1627 Displacement (l) 8.9Transmission Standard Transmission Brand Allison Transmission Type Automatic Number Of Speeds 6 Overdrive Yes