Bath and a half, rear bath
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2026 Tiffin Allegro Bus 45 OPP
NewStock #109819
PowerGlide XC Raised Rail Rear Engine Diesel Chassis · Cummins® L9 450 HP Diesel Engine with 1,250 lb-ft Torque
Listing price
2026 Allegro Bus 45 OPP
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
A rear full bath and a convenient half bath give the Tiffin Allegro Bus 45 OPP an especially comfortable layout for extended stays, while outdoor entertainment adds another way to enjoy the campsite. Inside, hydronic Aqua-Hot heating, heated floors, multiplex Spyder controls, and three heat-pump air conditioners bring upscale comfort throughout. Its 450 HP Cummins diesel engine, air suspension, adaptive cruise control, and collision mitigation support a smooth, confident drive.
Length
45 ft
GVWR
52,000 lbs
Sleeps
6
Slideouts
4
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
$489,994 – $639,994
This unit is ranked 2 of 9 by asking price in this group.
The listing price on this unit has changed 6 times.
See the complete price timeline and the rest of this unit's pricing insights.
Campers Inn RV
Seffner, FL
Compared with 1,116 dealers nationwide
The 2026 Tiffin Motorhomes Allegro Bus 45 OPP represents the pinnacle of luxury diesel motorhome living. At a full 45 feet long with four slide-outs, this flagship coach delivers a true residential experience combined with industry-leading performance and craftsmanship.
Built on Tiffin’s exclusive PowerGlide raised-rail chassis and powered by a 450-horsepower Cummins diesel engine, the 45 OPP offers smooth handling, powerful towing, and long-distance confidence for serious travelers.
Inside, the quad slide-out design creates an open, inviting space perfect for entertaining or relaxing. High-end finishes, panoramic windows, and premium furnishings give the coach a luxury residential feel.
With multiple seating options and a spacious living area, this motorhome is designed for comfort whether you're hosting guests or enjoying quiet evenings on the road.
The Allegro Bus 45 OPP features a fully equipped kitchen built for real cooking:
This space is ideal for everything from quick meals to full-course dinners.
The bath-and-a-half layout provides added convenience for both owners and guests, while the standout walk-in closet in the master suite sets this floorplan apart.
The rear suite includes a king bed, expansive wardrobe storage, and a private full bathroom—creating a true retreat on the road.
With a tag axle, air ride suspension, and advanced driver-assist features, the Allegro Bus 45 OPP delivers exceptional stability and control.
Features like hydronic heating, heated tile floors, large tank capacities, and a powerful generator make it ideal for full-time RV living or extended luxury travel.
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