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Photo of Rv
Photo of Rv
  • Price: $205,000
  • Year: 2015
  • Model: Allegro Bus 37 AP
  • Property ID: 6941260
  • Partner ID: 5037109463
  • Posted On: Jul 15, 2025
  • Updated On: Jul 18, 2025

RV Description

Discover the pinnacle of RV luxury with this meticulously maintained 2015 Tiffin Allegro Bus 37 AP diesel pusher. Known for its exceptional build quality, elegant design, and powerful performance, this coach is not only ready for the open road but also equipped for extended off-grid adventures!

Unparalleled Comfort & Style

Step inside and be greeted by the sophisticated interior of this Tiffin Allegro Bus. Handcrafted hardwood cabinetry, polished porcelain tile flooring, and luxurious finishes create a warm and inviting atmosphere that feels just like home. The spacious 37 AP floor plan features four slides for ample living space, perfect for entertaining guests or simply relaxing after a day of exploring. Enjoy the convenience of a residential refrigerator, a dinette with a computer workstation, and the warmth of a fireplace. 

Engineered for Performance

Built on the robust Powerglide chassis and powered by a Cummins diesel engine producing 450 HP, this Allegro Bus delivers impressive performance on the road. Experience a smooth ride and confident handling, even while towing. The Allison 3000 MH 6-speed automatic transmission ensures effortless shifting. 

Key Weight Specifications:

  • Towing Capacity: 15,000 lbs. This allows you to bring along a wide range of towed vehicles or trailers for your adventures.
  • Gross Vehicle Weight Rating (GVWR): 37,600 lbs. This is the maximum permissible weight of the fully loaded RV, including all passengers, fluids, and cargo.
  • Gross Combined Weight Rating (GCWR): The total weight your motorhome and the towed vehicle can handle together. This includes the weight of the motorhome, the trailer, and anything being carried in either. It's crucial not to exceed this limit. (To obtain the precise GCWR, consult the official Tiffin Allegro Bus 37 AP manual for the 2015 model year)
  • Boondocking Ready

    This Allegro Bus is perfectly equipped for extended boondocking or off-grid camping, thanks to a high-performance power system upgrade:

  • 3 x Battle Born Lithium Batteries (200Ah each): These reliable LiFePO4 batteries offer a total of 600 amp-hours of usable power, allowing you to enjoy your amenities for extended periods without needing to hook up to shore.
  • Enhanced Towing with Demco Air Force One Braking System

    Experience an even safer and smoother towing experience thanks to the integrated Demco Air Force One supplemental braking system specifically designed for air brake motorhomes like this Allegro Bus. This cutting-edge system provides proportional braking, ensuring that your towed vehicle's brakes engage simultaneously and with the same intensity as your RV's brakes. 

    The Air Force One system boasts several key features:

  • Truly Proportional Braking: Utilizing a pilot signal from the coach's air brake system, the system delivers direct proportional braking, unlike adjustable or inertia-based systems. The towed vehicle slows in perfect sync with the motorhome, providing a safer and more comfortable ride.
  • Automatic & Seamless Operation: The system is permanently installed and requires no setup or takedown when hooking up your towed vehicle. Simply connect the air hose and power cord, and the system is ready to go, remaining largely invisible once installed.
  • Vacuum-Assisted Power Brakes: A patented process creates a vacuum in the towed vehicle's power brake system, energizing the brakes without the need for an electronic pump, according to Demco Products.
  • Total Coach Protection: The AFO system includes a patented breakaway feature that seals off the RV's air supply in case of accidental separation, ensuring normal braking function for the coach and activating the towed vehicle's brakes through its breakaway system.
  • Chassis Warranty Compliant: The Air Force One system is designed to meet Federal Motor Vehicle Safety Standards (FMVSS) and chassis warranty requirements, guaranteeing that using it won't void your motorhome's warranty.
  • Built-in Safety Features: An integrated breakaway system provides an added layer of safety, automatically activating the brakes on the towed vehicle if it becomes detached. A convenient Coachlink wireless monitor (sold separately or included in some kits) can be added for continuous feedback on the braking system's status. 
  • The Demco Air Force One system is designed for dependability and ease of use, providing peace of mind and enhanced safety for all your towing adventures. Remember to always consult the manufacturer's specifications for both the RV and the towed vehicle to ensure you remain within safe operating limits, including towing capacity, GVWR, and GCWR.


    Key Features:

  • Model: 2015 Tiffin Allegro Bus 37 AP
  • Length: 38 ft 11 in
  • Engine: 450 HP Cummins Diesel Engine
  • Chassis: Powerglide
  • Sleeps: 4
  • Slides: 4
  • Fuel Type: Diesel
  • Mileage: 40,000 
  • Exterior Features: Full-body paint, keyless entry door system, dual-pane tinted windows, automatic patio awning
  • Interior Features: Handcrafted hardwood cabinets, residential refrigerator, porcelain tile flooring, fireplace, Washer/Dryer Ready
  • Power System Upgrade: 3 x Battle Born Lithium Batteries (200Ah each) and 4 x Solar Panels (9 amps/hour each)
  • Hydraulic Automatic Leveling Jacks
  • 10,000 kw Onan Generator
  • Additional features: [List any other notable features, like central vacuum, multiple TVs, upgraded options like a king bed, etc.]
  • Don't miss this opportunity to own a piece of Tiffin luxury, complete with an incredible off-grid power system! This 2015 Allegro Bus 37 AP offers the perfect combination of style, comfort, power, and the freedom to go anywhere you desire. Contact us today to schedule a viewing!


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