Tiffin Phaeton RV
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Tiffin Phaeton RVs For Sale
Tiffin Phaeton Class A diesel pusher motorhomes for sale at Motor Home Specialist, the #1 Volume Selling Motor Home Dealer in the World. The Phaeton is a mid-luxury Class A diesel pusher built on the PowerGlide XC raised-rail rear-engine chassis with the Cummins L9 450HP diesel standard. Shopping new or used? MHSRV stocks one of the largest selections of Tiffin Phaeton motorhomes for sale in the country, all backed by industry-leading discount pricing.
The Phaeton sits in the mid-luxury tier of the Tiffin Class A diesel pusher lineup, between the entry-tier Allegro Red and the flagship Allegro Bus. It's aimed at buyers who want serious diesel pusher chassis credentials and Tiffin's handcrafted cabinetry without stepping all the way up to Allegro Bus pricing. Four floor plans range from 37 feet 9 inches to 45 feet long, including the tag-axle 44 OH.
Chassis, Powertrain, and Towing
Every Phaeton rides on the PowerGlide XC raised-rail chassis. The powertrain is the Cummins L9 450HP diesel (1,250 lb-ft of torque) paired with the Allison 3000 MH 6-speed automatic. The chassis carries a full air brake system, three-stage compression brake, ZF independent front suspension, Freightliner V-Ride rear suspension, Koni shocks, and hydraulic leveling jacks. The 44 OH adds a steerable tag axle for a tighter turning radius and higher load capacity.
Every Phaeton has a 10,000-pound trailer hitch. The 35 CH, 37 BH, and 40 IH carry a 40,000-lb GVWR and 50,000-lb GCWR. The tag-axle 44 OH steps up to a 46,000-lb GVWR and 56,000-lb GCWR.
Driver-Assist and Cockpit
Standard driver-assist features include adaptive cruise control, automatic traction control, electronic stability control, and collision mitigation with active braking. Side-view cameras integrated into the mirrors activate with the turn signals, and a 10-inch HD multichannel monitor pairs with the color backup camera. Optional upgrades add blind spot monitoring, in-dash navigation, and an electric drop-down bunk for guest sleeping.
The cockpit runs power leather driver and passenger seats with swivel bases, a tilt and telescoping steering wheel with integrated controls, adjustable pedals, a digital dash cluster, and a passenger-console wireless phone charger.
LP vs Hydronic Configuration
The 35 CH, 37 BH, and 40 IH offer two coach configurations. The standard LP coach uses propane for the ducted furnaces, the Truma AquaGo instant water heater, and the three-burner cooktop.
The optional Hydronic Heating & Electronic Appliance Equipped configuration (formerly the All-Electric Coach) swaps the LP appliances for an Aqua-Hot 450D heat exchanger and a two-burner induction cooktop, and removes the LPG tank entirely. The 44 OH comes standard with the hydronic configuration and has no LP option.
Off-Grid: Solar, Batteries, Generator, Starlink
Every Phaeton comes standard with a 10-kW 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 A/Cs with heat pumps, 50-amp shore power on a powered reel, and an energy management system.
Standard house batteries are six 6-volt 225 Ah flooded lead-acid cells. Optional upgrades add six 6-volt 210 Ah AGM or three 12-volt 270 Ah lithium batteries.
Solar prep with auxiliary docking ports is standard. Two factory rooftop solar packages are available: a 600-watt option on every plan, and a 1,200-watt option on the 40 IH and 44 OH only. Starlink roof prep is standard on every plan, so the satellite internet system can be added anytime (subscription required).
Coach Control: Spyder Multiplex and Vegatouch
Coach systems run through the Spyder Controls Multiplex System with the Firefly Integrations Mira Module. A centralized 10-inch main monitor pairs with a passenger console touchscreen, an interior entryway touchscreen, and an exterior touchscreen. The Vegatouch app offers both Bluetooth-range local control and remote internet-based control.
Exterior Build
The exterior runs full-body paint with four layers of clear coat, frameless dual-pane windows, a Girard powered door awning with LED lighting, side-swinging exterior storage doors with gas shocks, a powered fresh water hose reel, an exterior TV with soundbar, and a keyless entry system for the front door and select compartment doors. Six full-body paint colors are offered in two paint scheme options.
The standard side-mounted powered patio awning can upgrade to dual Girard roof-mounted powered awnings with LED lighting and a dual-pitch feature.
Interior, Kitchen, and Bath
The interior runs handcrafted overhead cabinetry, dimmable LED lighting, soft-close drawers, solar and privacy shades, a central vacuum system with automatic dustpan, prep for washer and dryer, and a 1.7-cubic-foot smart convection microwave with air fry. Three interior décor packages are offered with coordinated upholstery, cabinetry, and flooring.
The galley runs a residential French-door refrigerator (22 cu ft on the 35 CH; 25 cu ft on the 37 BH, 40 IH, 44 OH), a double-bowl sink with pull-down sprayer, a full tile backsplash, task lighting, and a panoramic galley window. The 37 BH, 40 IH, and 44 OH add a manual-release Expand-An-Island for extra prep space.
The master bedroom carries a 72-by-80-inch Memory Foam King mattress on every plan. The 35 CH adds a Power Smart Lift bed mechanism as standard. Closet configuration varies: the 35 CH and 40 IH run floor-to-ceiling closet space, the 37 BH runs a wardrobe with drawers underneath, and the 44 OH steps up to a walk-in closet.
Bathroom layout varies by plan. The 35 CH runs a single bath with the larger 31.75-by-40-inch shower, dual porcelain sinks, and a macerator toilet. The 37 BH, 40 IH, and 44 OH run a bath-and-a-half with a gravity flush toilet in the main bath and a macerator in the half-bath.
The Four Phaeton Floor Plans
Motor Home Specialist stocks the Phaeton in four floor plans, all sharing the PowerGlide XC chassis and the Cummins L9 450HP diesel.
35 CH: 37 ft 9 in. About 375 sq ft. Three slides. Sleeps 2 to 4. Single bath with the larger 31.75-by-40-inch shower. The compact couples-focused plan with a standard Power Smart Lift bed. Optional standalone living-area fireplace and 600-watt solar package.
37 BH: 38 ft 2 in. About 375 sq ft. Three slides. Sleeps 2 to 6. Bath-and-a-half. The standard mid-size plan with expanded basement storage over earlier builds.
40 IH: 41 ft 4 in. About 405 sq ft. Four slides. Sleeps 2 to 6. Bath-and-a-half with the larger 31.75-by-40-inch shower. The spacious mid-size plan with the optional 1,200-watt solar package.
44 OH: 45 ft. About 440 sq ft. Four slides. Sleeps 2 to 8. Bath-and-a-half. The tag-axle flagship, standard with the hydronic configuration, walk-in closet, and 25-cubic-foot French-door refrigerator.
Shopping the Phaeton? Compare it against the rest of Tiffin's diesel pusher lineup: the Allegro Bus (luxury-tier flagship above the Phaeton), the Allegro Red (entry-tier diesel pusher), and the Byway (most accessible diesel pusher tier). Cross-shopping diesel vs gas Class A? Look at the Open Road Allegro. Considering a Super C alternative? The Allegro Bay sits alongside the Phaeton in the Tiffin diesel lineup.
Tiffin Phaeton FAQs
What is the Tiffin Phaeton?
The Tiffin Phaeton is a mid-luxury Class A diesel pusher built on the PowerGlide XC raised-rail chassis with the Cummins L9 450HP diesel standard. It sits in the mid-luxury tier of Tiffin's Class A diesel lineup, between the entry-tier Allegro Red and the flagship Allegro Bus. The Phaeton is aimed at buyers who want serious diesel pusher chassis credentials and Tiffin's handcrafted cabinetry at a more accessible price than the Allegro Bus.
What engine and chassis are on the Tiffin Phaeton?
Every Phaeton comes standard with the Cummins L9 450HP diesel producing 1,250 lb-ft of torque, paired with the Allison 3000 MH 6-speed automatic transmission on the PowerGlide XC raised-rail rear-engine chassis. Standard chassis equipment adds a full air brake system, three-stage compression brake, ZF independent front suspension, Freightliner V-Ride rear suspension, Koni shocks, and hydraulic leveling jacks. The 44 OH also adds a steerable tag axle for a tighter turning radius and higher load capacity.
How much can the Tiffin Phaeton tow?
Every Phaeton has a 10,000-pound trailer hitch with a 10,000-pound maximum trailer weight rating. The 35 CH, 37 BH, and 40 IH carry a 40,000-lb GVWR and 50,000-lb GCWR. The tag-axle 44 OH steps up to a 46,000-lb GVWR and 56,000-lb GCWR, making it the strongest tow option in the Phaeton lineup for buyers pulling a substantial toad vehicle, enclosed trailer, or boat.
What is the difference between the LP and Hydronic / All-Electric Phaeton configurations?
The Phaeton offers two power configurations on the 35 CH, 37 BH, and 40 IH. The standard LP coach uses propane for the ducted furnaces, the Truma AquaGo instant water heater, and the three-burner cooktop. The optional Hydronic Heating and Electronic Appliance Equipped configuration (formerly the All-Electric Coach) swaps the LP appliances for an Aqua-Hot 450D heat exchanger and a two-burner induction cooktop, and removes the LPG tank entirely. The 44 OH comes standard with the hydronic configuration and offers no LP option.
What floor plans does the Tiffin Phaeton come in?
The Phaeton is available at MHSRV in four floor plans: the 35 CH (37 ft 9 in, three slides, sleeps 2-4, single bath, compact couples-focused plan with standard Power Smart Lift bed), the 37 BH (38 ft 2 in, three slides, sleeps 2-6, bath-and-a-half, standard mid-size plan), the 40 IH (41 ft 4 in, four slides, sleeps 2-6, bath-and-a-half with the larger shower, optional 1,200-watt solar), and the 44 OH (45 ft, four slides, sleeps 2-8, bath-and-a-half, tag-axle flagship standard with the hydronic configuration and walk-in closet).
Does the Tiffin Phaeton come in a tag axle floor plan?
Yes. The 45-foot Phaeton 44 OH features a steerable tag axle for a tighter turning radius than a standard 45-foot motorhome and added load capacity for a 46,000-lb GVWR and 56,000-lb GCWR. The 44 OH is also the flagship Phaeton floor plan and comes standard with the hydronic configuration, the larger 25-cubic-foot French-door refrigerator, a walk-in closet, and a bath-and-a-half.
Does the Tiffin Phaeton come in a bath-and-a-half floor plan?
Yes. Three of the four Phaeton floor plans (37 BH, 40 IH, 44 OH) run a bath-and-a-half layout with one full bath plus a half-bath. The 37 BH uses a 28.5-by-40.5-inch shower with a single porcelain sink. The 40 IH and 44 OH use the larger 31.75-by-40-inch shower with dual porcelain sinks. All bath-and-a-half plans include a gravity flush toilet in the main bath and a macerator toilet in the half-bath. The 35 CH runs a single full bathroom instead, with the larger shower and dual porcelain sinks.
How does the Tiffin Phaeton handle off-grid camping?
Every Phaeton comes standard with a 10-kW Onan Quiet Diesel generator on a slide tray and a 3,000-watt pure sine wave inverter/charger with auto-gen start. Solar prep is standard on every plan. Two factory rooftop solar packages are offered: a 600-watt option on every plan and a 1,200-watt option on the 40 IH and 44 OH. Lithium battery upgrades (three 12-volt 270 Ah cells) are available for buyers planning extended boondocking stays. Every Phaeton is also Starlink-prepped from the factory, so the satellite internet system can be added anytime.
What is the difference between the Tiffin Phaeton and Allegro Bus?
The Tiffin Allegro Bus sits above the Phaeton as the flagship luxury-tier diesel pusher in the Tiffin lineup. Both share the PowerGlide XC chassis and the Cummins L9 450HP diesel. The Allegro Bus adds an optional Cummins X15 605HP engine on tag-axle plans, GVWR up to 52,000 lbs (vs 46,000 on the Phaeton 44 OH), standard Mobileye lane departure and blind spot monitoring, standard Starlink (vs prep on Phaeton), standard Gold Heat heated tile floor, standard stacked washer and dryer, and the Tiffin PowerDrive adaptive steering column. Pick the Phaeton for the same chassis and engine at a more accessible price. Pick the Allegro Bus for the flagship equipment list and the optional X15 upgrade.
What is the difference between the Tiffin Phaeton and Allegro Red?
Both the Phaeton and the Tiffin Allegro Red are Tiffin Class A diesel pushers, but they sit at different tiers. The Phaeton is the mid-luxury tier with the Cummins L9 450HP diesel standard on the PowerGlide XC chassis, standard adaptive cruise control, four floor plans including a tag-axle 45-foot flagship, and the optional hydronic/all-electric configuration. The Allegro Red is the entry-tier diesel pusher with a smaller diesel and a shorter standard feature list. Pick the Phaeton for the larger diesel, tag-axle option, and hydronic upgrade. Pick the Allegro Red for the more accessible price of entry into Tiffin diesel pusher ownership.
Do I need a CDL to drive a Tiffin Phaeton?
In most states, no CDL is required to operate a Tiffin Phaeton because it is a personal-use recreational vehicle. That said, CDL and non-commercial license requirements vary by state, particularly for motorhomes above certain weight or length thresholds. The Phaeton 44 OH's 46,000-lb GVWR and 45-foot length may trigger a non-commercial Class A or Class B license in some states. Buyers should check with their state's DMV before purchase.
Where can I buy a Tiffin Phaeton?
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 Phaeton Class A diesel pusher motorhomes for sale anywhere in the country. MHSRV serves Tiffin Phaeton buyers nationwide with 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.
