Tiffin Phaeton 40 IH

Still in production. A used 2023 would run roughly $359,700.

A missing row means the maker never published that figure: unknown, not zero.

• 1× Memory-foam king in the rear bedroom; queen optional(Permanent)72×80
• 1× 74" air-coil sofa bed, driver side(Convertible)72×52
• 1× 72" booth dinette-sleeper, passenger side(Convertible)69×45
• 1× 68" DE sofa bed with lift TV, passenger side(Convertible)61×49
• 1× Optional electric front overhead drop-down bunk(Stow-away)30×72

Tiffin (Better tier): Tiffin's mid-line diesel pusher: Crane Noble all-composite sidewalls, tubular aluminum framing, steel basement and a Freightliner PowerGlide raised-rail chassis with ZF independent front suspension - genuinely well built, with the caveat that post-2021 Thor-era service is not what the family-run years were.

• 2018Introduced (GVWR 39,600 lb, Cummins ISL/L9 380 hp)
• 2018Introduced at 39,600 lb GVWR with the Cummins ISL/L9 380 hp; MSRP $360,860
• 2024Cummins L9 450 hp / 1,250 lb-ft replaces the 380 hp engine; GVWR nudged to 39,660 lb
• 2024Cummins L9 450 hp / 1,250 lb-ft replaces the 380 hp; GVWR nudged to 39,660 lb
• 2026GVWR raised to 40,000 lb, GCWR to 50,000 lb, front GAWR to 16,000 lb; Starlink Pro and Pet Perks options added; XSH-generation chassis changes across the line
• 2026GVWR raised to 40,000 lb, GCWR to 50,000 lb; Starlink Pro option added

Patient search: weeks of watching, and probably some travel. Why: 9-year production run; still in production. Estimated from build volume and production span, not a count of live listings.

The sweet spot of the Tiffin diesel range - 41 ft, four slides, bath-and-a-half, and enough chassis to actually use the storage. Buy 2024-up if you want the 450 hp engine.

Live listings for the 40 IH on the big marketplaces. Each search opens pre-filled with this exact floorplan:

Inventory varies by site and day. Slim pickings? search the whole Phaeton line ↗