Used Tiffin RV for Sale - 2006 Tiffin Allegro Bus with 4 slides, Model 42QDP. Only 20,550 miles! This RV is approximately 42’ in length with a powerful 400 HP Cummins diesel engine, 6 speed Allison transmission, raised rail Spartan IFS tag axle chassis with side radiator, 10K Onan diesel generator on slide, power patio and door awnings, hydraulic leveling system, color 3 camera system, Dimensions inverter, 3 ducted roof A/Cs with heat pumps, 3 LCD TVs. For complete details visit Motor Home Specialist at MHSRV .com or 800-335-6054