Tiffin Allegro Bus RV
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Tiffin Allegro Bus RVs For Sale
Tiffin Allegro Bus Class A diesel pusher motorhomes for sale at Motor Home Specialist, the #1 Volume Selling Motor Home Dealer in the World. The Tiffin Allegro Bus is the flagship Class A diesel pusher in the Tiffin lineup, built on the exclusive PowerGlide XC raised-rail rear-engine diesel chassis with the standard Cummins L9 450-horsepower diesel engine producing 1,250 lb-ft of torque. An optional Cummins X15 605-horsepower diesel with 1,950 lb-ft of torque is available on the 45-foot tag-axle floor plans. Shopping for a new or used Tiffin Allegro Bus? MHSRV stocks one of the largest selections of Tiffin Allegro Bus motorhomes for sale anywhere in the country, all backed by industry-leading discount pricing.
The Allegro Bus sits at the top of the Tiffin Motorhomes lineup. It's aimed at luxury Class A diesel pusher buyers who want serious chassis credentials, premium interior amenities, and the confidence that comes with full air ride suspension, ZF independent front suspension, and an extensive standard driver-assistance suite. Five distinct floor plans range from 38 to 45 feet, covering couples-focused layouts through family-friendly mid-bunk configurations.
Chassis, Powertrain, and Towing
Every Allegro Bus rides on the PowerGlide XC raised-rail rear-engine diesel chassis. The standard powertrain is the Cummins L9 450HP diesel paired with the Allison 3000 MH 6-speed automatic transmission with lock-up torque converter. Chassis equipment adds a full air brake system with automatic slack adjusters, a three-stage compression brake, ZF independent front suspension, Reyco Granning air ride rear suspension, custom-tuned Koni shock absorbers, front disc brakes, and 315/80R 22.5 tires front and rear. The 45-foot 45 BP, 45 OPP, and 45 BTP floor plans add a steerable tag axle for a tighter turning radius and higher load capacity.
Buyers who want more power can option the Cummins X15 605HP diesel on tag-axle floor plans. That upgrade also swaps the chassis for the heavier-duty PowerGlide SL platform. Tow ratings scale with floor plan: the 36 AP and 40 IP carry a 10,000-pound trailer hitch and a 52,000-pound GCWR; the 45 BP, 45 OPP, and 45 BTP step up to a 15,000-pound hitch and a 67,000-pound GCWR. Every Allegro Bus carries a 100-gallon fresh water tank, 100-gallon grey tank, 55-gallon black tank, and 150-gallon fuel tank for extended off-grid stays and long-haul travel without frequent refueling or dump stops.
PowerDrive and Driver-Assist Package
The Allegro Bus carries the Tiffin PowerDrive adaptive steering column with integrated controls, aimed at giving drivers more confidence behind the wheel of a 38-to-45-foot Class A diesel pusher. Standard driver-assistance features include adaptive cruise control, automatic traction control, electronic stability control, Mobileye lane departure warning, automatic high-beam headlight control, collision mitigation with forward warning and active braking, blind spot monitoring, tire pressure monitoring, and a 10-inch glass panel camera monitor with side-view cameras and color backup camera. A 360-degree view camera is available as a factory option.
Cockpit and Driver Comfort
The driver's compartment carries power driver and passenger seats with swivel bases, integrated seat belts, and lumbar support. Adjustable accelerator and brake pedals, a Valid liquid crystal display instrument cluster with integrated leveling controls, an ergonomic dash with carbon fiber accents, and a passenger console wireless phone charger round out the layout. A one-piece panoramic windshield with powered solar and privacy shade sits ahead of ceiling-mounted speakers and a JBL sound system with amplifier and dual subwoofers. In-dash navigation runs on the Advanced Monitor System's 10-inch glass panel touchscreen, with a separate 7-inch passenger console touchscreen.
All-Electric Configuration
Every Allegro Bus comes standard with the Hydronic Heating & Electronic Appliance Equipped configuration (formerly called the All-Electric Coach). Space heating, water heating, and cooking are all electrically powered. An Aqua-Hot 450D heat exchanger handles both interior heating and hot water, and a two-burner induction cooktop is standard, with an optional Wolf induction cooktop upgrade. This configuration is standard on the Allegro Bus, while it's an option on the Allegro Bay.
Off-Grid: Solar, Batteries, and Generator
Every Allegro Bus comes standard with a 10.0-kilowatt Onan Quiet Diesel generator on a slide tray, a 3,000-watt pure sine wave inverter/charger with auto-gen start, three 15,000-BTU low-profile air conditioners with heat pumps, 50-amp shore power with a powered retract reel, and Starlink satellite internet (subscription required). The standard house battery bank runs six 6-volt 230-amp-hour flooded lead-acid batteries. Optional upgrades add six 6-volt 300-amp-hour extended cycle AGM batteries or three 12-volt 270-amp-hour lithium batteries. Solar prep with auxiliary docking ports is standard, and two factory solar packages are available: a 600-watt package (three 200-watt panels with a 30-amp controller) or a 1,200-watt package (six 200-watt panels with two 30-amp controllers).
Coach Control: Spyder Multiplex and Vegatouch
Coach systems run through the Spyder Controls Multiplex System with the Firefly Integrations Eclipse Module. Screens include a centralized 10-inch main monitor, a passenger console color touchscreen, an interior entryway color touchscreen, an exterior color touchscreen, and additional Spyder color touchscreens throughout the coach. The Vegatouch smartphone app offers both Bluetooth-range local control and remote internet-based control (with a free 90-day remote access trial).
Exterior, Paint, and Awnings
The exterior runs full-body paint with four layers of clear coat, striped slide-out endwalls, frameless dual-pane windows, fog lights and daytime running lights, exterior ground effects lighting, dual Girard roof-mounted powered patio awnings with integrated LED lighting and a dual pitch feature, a Girard powered window awning package, a Girard powered door awning, exterior lighting under the slide-out, an exterior TV with soundbar, a basement freezer, a powered fresh water hose retract reel, and a keyless entry system for the front entrance and select compartment doors. Five full-body paint colors are offered (Cinderwood, Arctic Sapphire, White Mahogany, Waterfall, Frosted Granite) in two paint scheme options (Generation 13 or Generation 15).
Interior, Master Bedroom, and Bath
The interior runs handcrafted overhead cherry and maple cabinetry, a solid-surface step well with tile inserts and a powered cover, recessed step-well lighting, dimmable LED lighting throughout, powered solar and privacy shades, soft-close drawers, a soft-touch vinyl ceiling, a central vacuum system with the VacPan automatic dustpan, Gold Heat dual-zone heated tile floors, a stacked washer and dryer standard, a 25-cubic-foot stainless steel residential refrigerator with French doors and bottom freezer, a drawer-style dishwasher standard, and a 1.7-cubic-foot smart convection microwave with air fry. Three interior décor packages are offered (Pacifica, Omnia, Taos), with the 45 BTP featuring an exclusive Great Smoky Mountains décor package and Savoir Porcelain Tile flooring.
The master bedroom carries a 72-by-80-inch memory foam King mattress with Power Smart Lift standard on every plan. Every floor plan also adds a handcrafted privacy door, LED reading lights, nightstands with solid-surface tops, a mounted bedroom TV, a centralized entertainment center, a ceiling fan, a decorative handcrafted wood ceiling ring, and an in-room safe. The 36 AP and 40 IP carry floor-to-ceiling closet space; the 45-foot 45 BP, 45 OPP, and 45 BTP step up to a walk-in closet with solid-surface countertops inside the storage. An optional bedroom fireplace and bedroom egress door are available on every plan.
Every Allegro Bus carries a bath-and-a-half layout as standard, with one full bath plus a half-bath. Both baths add dual porcelain master bathroom sinks, a teak folding shower seat, a shower skylight, an LED shower light with sliding cover, a medicine cabinet with tri-view vanity mirror, an electric gravity flush toilet in the main bath, and a macerator toilet in the half-bath. The 36 AP and 40 IP carry a 32-by-40-inch solid-surface shower with inlaid tile and a residential glass door. The 45 BP, 45 OPP, and 45 BTP step up to a larger 32-by-48-inch shower of the same construction.
The Five Allegro Bus Floor Plans
Motor Home Specialist stocks the Allegro Bus in five floor plans. All five share the PowerGlide XC chassis, the Cummins L9 450HP standard powertrain, and the standard All-Electric configuration.
36 AP: 38 feet 2 inches. About 365 square feet. Four slides. 42,000-pound GVWR. Sleeps 2 to 3. 10,000-pound hitch. The most compact couples-focused plan, with an optional 111-inch Super Sofa.
40 IP: 41 feet. About 405 square feet. Four slides. 42,000-pound GVWR. Sleeps 2 to 4. 10,000-pound hitch. The mid-size plan, suited for couples and small families.
45 BP: 45 feet. About 440 square feet. Four slides. 52,000-pound GVWR with a steerable tag axle. Sleeps 2 to 8 with the standard power drop-down mid-bunk. 15,000-pound hitch with a 15,000-pound trailer rating. The family-friendly tag-axle plan.
45 OPP: 45 feet. About 440 square feet. Four slides. 52,000-pound GVWR with a steerable tag axle. Sleeps 2 to 6. 15,000-pound hitch. An open-plan layout with no mid-bunk.
45 BTP: 45 feet. About 440 square feet. Three slides. 52,000-pound GVWR with a steerable tag axle. Sleeps 2 to 5. 15,000-pound hitch. A special-edition plan with the exclusive Great Smoky Mountains décor package.
Shopping the Allegro Bus? Compare it against the rest of Tiffin's Class A diesel pusher lineup, including the Tiffin Phaeton (mid-tier diesel pusher) and the Tiffin Allegro Red (entry diesel pusher). For a Class C/Super C diesel alternative, look at the Tiffin Allegro Bay. For a gas Class A comparison, look at the Tiffin Open Road Allegro. All are available at Motor Home Specialist alongside the full Tiffin lineup.
Tiffin Allegro Bus FAQs
What is the Tiffin Allegro Bus?
The Tiffin Allegro Bus is the luxury-tier flagship Class A diesel pusher in Tiffin Motorhomes' lineup. It's built on the exclusive PowerGlide XC raised-rail rear-engine diesel chassis with a standard Cummins L9 450-horsepower diesel engine (with an optional Cummins X15 605HP upgrade on tag-axle floor plans), full air ride suspension, ZF independent front suspension, and an extensive standard driver-assistance package. The Allegro Bus sits at the top of the Tiffin lineup, above the Phaeton and Allegro Red, and is suited for full-time travelers and luxury Class A buyers who want maximum chassis credentials and premium interior amenities.
What chassis is the Tiffin Allegro Bus built on?
The Tiffin Allegro Bus is built on the exclusive PowerGlide XC raised-rail rear-engine diesel chassis (or the heavier-duty PowerGlide SL on tag-axle floor plans optioned with the Cummins X15 engine). Standard chassis features include the Cummins L9 450HP diesel engine, Allison 3000 MH 6-speed automatic transmission, full air brake system with automatic slack adjusters, three-stage compression brake, ZF independent front suspension, Reyco Granning air ride rear suspension, custom-tuned Koni shock absorbers, front disc brakes, integrated Valid air leveling system with hydraulic leveling jacks, and a steerable tag axle on the 45-foot floor plans (45 BP, 45 OPP, 45 BTP).
What engine options are available on the Tiffin Allegro Bus?
The standard engine on every Tiffin Allegro Bus is the Cummins L9 450-horsepower diesel producing 1,250 lb-ft of torque, paired with the Allison 3000 MH 6-speed automatic transmission. The 45-foot tag-axle floor plans (45 BP, 45 OPP, 45 BTP) offer an optional upgrade to the Cummins X15 605-horsepower diesel producing 1,950 lb-ft of torque, which also upgrades the chassis to the PowerGlide SL platform. The X15 upgrade is targeted at buyers who plan to tow heavy loads or spend significant time in mountain terrain.
How much can the Tiffin Allegro Bus tow?
The Tiffin Allegro Bus tow rating varies by floor plan. The 36 AP and 40 IP have a 10,000-pound trailer hitch and a 10,000-pound maximum trailer weight rating, with a 52,000-pound GCWR. The 45-foot tag-axle floor plans (45 BP, 45 OPP, 45 BTP) step up to a 15,000-pound trailer hitch with a 15,000-pound maximum trailer weight rating, and a 67,000-pound GCWR. This makes the Allegro Bus a strong choice for buyers who plan to tow a substantial toad vehicle, enclosed trailer, or boat behind the coach.
Is the Tiffin Allegro Bus all-electric?
Yes. The Tiffin Allegro Bus comes standard with the Hydronic Heating and Electronic Appliance Equipped configuration (formerly known as All-Electric Coach). Space heating, water heating, and cooking appliances are all electrically powered, with an Aqua-Hot 450D heat exchanger handling both interior heating and water heating, and a two-burner induction cooktop standard (with an optional Wolf induction cooktop upgrade). This is a key differentiator from the Allegro Bay, where the hydronic configuration is optional rather than standard.
What floor plans does the Tiffin Allegro Bus come in?
The Tiffin Allegro Bus is available at MHSRV in five floor plans: the Allegro Bus 36 AP (38 feet 2 inches, about 365 square feet, 4 slides, 42K GVWR, the most compact couples-focused plan), 40 IP (41 feet, about 405 square feet, 4 slides, 42K GVWR, the mid-size plan), 45 BP (45 feet, about 440 square feet, 4 slides, 52K GVWR with steerable tag axle, sleeps up to 8 with the standard power drop-down mid-bunk for families), 45 OPP (45 feet, about 440 square feet, 4 slides, 52K GVWR with steerable tag axle, an open-plan layout with no mid-bunk), and 45 BTP (45 feet, about 440 square feet, 3 slides, 52K GVWR with steerable tag axle, a special-edition plan featuring the exclusive Great Smoky Mountains décor package).
Does the Tiffin Allegro Bus come in a tag axle floor plan?
Yes. The 45-foot Allegro Bus floor plans (45 BP, 45 OPP, and 45 BTP) all feature a steerable tag axle, which provides a tighter turning radius than a standard 45-foot motorhome and adds load capacity for a higher 52,000-pound GVWR and 67,000-pound GCWR. The steerable tag axle also adds drive and tag axle drum brakes for additional stopping power on heavily-loaded coaches.
Does the Tiffin Allegro Bus come in a bunk model floor plan?
Yes. The Tiffin Allegro Bus 45 BP is the family-friendly floor plan in the Allegro Bus lineup, featuring a standard power drop-down mid-bunk on the passenger side that gives the 45 BP a sleeping capacity of up to 8. Buyers who'd rather swap the mid-bunk for a workspace can option a storage area with desk on the 45 BP.
Does the Tiffin Allegro Bus come with solar?
Every Tiffin Allegro Bus comes solar-prepped with auxiliary docking ports for aftermarket solar panels as standard equipment. Two factory solar packages are offered as options: a 600-watt rooftop solar package (three 200-watt panels with a 30-amp controller) or a 1,200-watt rooftop solar package (six 200-watt panels with two 30-amp controllers). Combined with the optional three 12-volt 270-amp-hour lithium house batteries, this gives buyers substantial off-grid capability for extended boondocking or dry camping. Every Allegro Bus also comes standard with Starlink satellite internet (subscription required) for connectivity in remote locations.
Does the Tiffin Allegro Bus come with a generator?
Yes. Every Tiffin Allegro Bus comes standard with a 10.0-kilowatt Onan Quiet Diesel generator on a slide tray for easier service access, paired with a 3,000-watt pure sine wave inverter/charger with auto-gen start capability controlled through the Spyder Controls Multiplex System.
Does the Tiffin Allegro Bus come in a bath-and-a-half floor plan?
Every Tiffin Allegro Bus floor plan features a bath-and-a-half layout as standard equipment, with one full bathroom and one half-bath, dual porcelain master bathroom sinks, a teak folding shower seat, a shower skylight, an electric gravity flush toilet in the main bathroom, and a macerator toilet in the half-bath. This is a key differentiator from the Allegro Bay, where the bath-and-a-half is exclusive to the 38 BB floor plan.
What is the difference between the Allegro Bus and Phaeton?
The Tiffin Phaeton sits directly below the Allegro Bus in the Tiffin Class A diesel pusher lineup. Both coaches share the PowerGlide XC chassis and the standard Cummins L9 450HP diesel. The Allegro Bus differentiates with an optional Cummins X15 605HP engine on tag-axle floor plans, a 52,000-pound GVWR ceiling (vs. 46,000 on the top Phaeton), Mobileye lane departure warning and blind spot monitoring as standard (both optional on Phaeton), standard Starlink satellite internet (vs. Starlink prep on Phaeton), a standard Gold Heat heated tile floor (vs. optional on Phaeton), a standard stacked washer and dryer, the Tiffin PowerDrive adaptive steering column, and dual roof-mounted Girard awnings. Pick the Allegro Bus for the full flagship equipment list and the X15 engine upgrade path. Pick the Phaeton for the same core chassis and diesel at a lower price of entry.
How much does a Tiffin Allegro Bus cost?
Final pricing on a new Tiffin Allegro Bus varies by floor plan, engine choice (standard Cummins L9 or optional Cummins X15 on tag-axle floor plans), interior décor package, exterior paint, and optional features (lithium battery upgrade, 1,200-watt solar package, gallery window package, 360-degree view camera). Motor Home Specialist offers industry-leading discount pricing on every new Tiffin Allegro Bus for sale, well below MSRP, so you save thousands compared to other Tiffin dealers. Browse current Tiffin Allegro Bus inventory at MHSRV for up-to-date pricing or contact our sales team for a personalized quote.
Where can I buy a Tiffin Allegro Bus?
Motor Home Specialist in Alvarado, Texas is the #1 volume-selling motor home dealer in the world and stocks one of the largest selections of new and used Tiffin Allegro Bus Class A diesel pusher motorhomes for sale anywhere in the country. MHSRV serves Tiffin Allegro Bus buyers nationwide and offers in-house financing, trade-ins, and full-service support after the sale.
Manufacturer options, features, colors, etc. can all change without notice and MHSRV assumes no responsibility for the changes or possible errors in information provided by the manufacturer. All weights and measurements are approximate and not guaranteed to be 100% accurate. For the latest information be sure to check with your salesperson and/or the coach manufacturer and verify before purchase.
