The 2026 Tiffin Motorhomes Phaeton 40 IH delivers refined luxury, powerful performance, and residential comfort in a beautifully crafted Class A diesel motorhome. Available now at Byerly RV in St. Louis, Missouri, this Phaeton floorplan is ideal for travelers who want elegance, space, and confidence for extended journeys.

With multiple slide‑outs and a bath‑and‑a‑half layout, the 40 IH offers a spacious interior that comfortably sleeps six. The living area features a welcoming mix of seating, including sofa beds, an optional booth dinette or dinette with chairs, and available theater seating—perfect for relaxing or entertaining. The well‑appointed kitchen includes an induction cooktop, convection microwave with air‑fryer functionality, generous pantry space, and available luxury upgrades such as a dishwasher.

The private master suite features a king bed slide, dresser storage, and direct access to the large rear bathroom. The bath offers a dual‑sink vanity, tri‑view mirror, shower with seat, and ample closet space, with the option to add a stacked washer and dryer for long‑term convenience. An exterior TV expands your living space outdoors for evenings at the campsite.

Built on Tiffin’s PowerGlide XC raised‑rail chassis and powered by a 450 HP Cummins L9 diesel engine, the Phaeton 40 IH delivers a smooth, confident ride supported by advanced systems and premium construction. Luxury touches such as heated tile floors, hydronic heat, solar capability, and full‑body paint with protective coatings elevate both comfort and durability.

If you’re searching for a 2026 Tiffin Phaeton 40 IH for sale in St. Louis, MO, visit Byerly RV to experience this elegant and powerful diesel motorhome in person.

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