NHTSA Campaign 26V662000

FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Issued by Tiffin Motorhomes, Inc. · Reported Oct 8, 2026 · 177 vehicles affected

What's wrong

Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2022-2025 Allegro Bus, and Phaeton motorhomes, equipped with certain L9 diesel engines, part number D563027BX03. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.

Consequence

A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.

Remedy

Cummins dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed November 20, 2026. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-150

Vehicles affected by this recall

Make Model Year Units
TIFFIN ALLEGRO BUS 2022 177
TIFFIN ALLEGRO BUS 2023 177
TIFFIN ALLEGRO BUS 2024 177
TIFFIN ALLEGRO BUS 2025 177
TIFFIN PHAETON 2022 177
TIFFIN PHAETON 2023 177
TIFFIN PHAETON 2024 177
TIFFIN PHAETON 2025 177

Source: NHTSA Campaign 26V662000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.