Recall
Tiffin recalls 177 Allegro Bus and Phaeton motorhomes over fuel leak
On certain 2022-2025 models with L9 diesel engines, a fuel leak in the presence of an ignition source increases the risk of a fire; Cummins dealers will replace the fuel hoses free, and owner letters are expected Nov. 20, 2026.
Checked against 2 sources (2 primary)Records from nhtsa.gov · How we report
Published · Updated · 3 min read
Key numbers
Units potentially affected as filed with NHTSA
- Fire risk
- Model years
- 2022–2025
- NHTSA campaign
- 26V-662
Jump to
Is your car affected?
For open (unrepaired) recalls on your car, enter its 17-character VIN in NHTSA's lookup by VIN.
Recall at a glance
- Vehicles
- Certain 2022-2025 Tiffin Allegro Bus and Phaeton motorhomes equipped with certain L9 diesel engines, part number D563027BX03
- Problem
- The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall
- Risk
- 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 letters
- Expected to be mailed Nov. 20, 2026
- NHTSA campaign
- 26V-662 (26V662000)
- Tiffin recall number
- TIF-150
- Report received by NHTSA
- Oct. 8, 2026
- Park advisory
- None listed (no park-it or park-outside advisory)
- Tiffin customer service
- 1-256-356-8661
Source for every row: source 1.
What to do
- Watch for an owner notification letter. Letters are expected to be mailed Nov. 20, 2026.
- Cummins dealers will replace the fuel hoses free of charge.
- You can call Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-150.
- The NHTSA record does not carry a "park it" or "park outside" advisory for this recall.
What happened
Tiffin Motorhomes, Inc. is recalling certain 2022-2025 Allegro Bus and Phaeton motorhomes equipped with certain L9 diesel engines, part number D563027BX03, according to the National Highway Traffic Safety Administration (NHTSA).
NHTSA lists 177 vehicles as potentially affected across the whole campaign.
According to the NHTSA recall record, the remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.
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.
NHTSA files the problem under the diesel fuel system's delivery hoses, lines, piping and fittings.
NHTSA received the report on Oct. 8, 2026, and lists it as campaign 26V-662 (26V662000). Tiffin's own number for this recall is TIF-150.
Is my car affected?
The recall covers certain 2022-2025 Allegro Bus and Phaeton motorhomes, not necessarily every one: those equipped with certain L9 diesel engines, part number D563027BX03.
Enter your motorhome's VIN in our free recall check at /vin-check/ or on NHTSA's site to look for this recall. You can also call Tiffin customer service at 1-256-356-8661.
The repair is free. The NHTSA record says Cummins dealers will replace the fuel hoses, free of charge.
One earlier Tiffin recall on NHTSA's list for the 2022 Allegro Bus is 24V-566. It covers certain 2022-2025 Phaeton, Allegro Bus and Zephyr motorhomes.
In that recall, the PowerGlide chassis controller may have insufficient circuit protection, which can result in a blown fuse and cause an engine shutdown. Dealers will install circuit protection, free of charge, and owner letters were mailed Sept. 13, 2024.
If you are shopping for a used 2022-2025 Allegro Bus or Phaeton, check its VIN for recalls before you buy.
New NHTSA vehicle recalls: Recall tracker
This story was prepared with AI assistance and fact-checked by our AI review process against its sources, then reviewed by Paul Grice before publication. Our AI policy.
Sources
All 2 are primary sources, accessed 2026-10-14.
Corrections
- : This page showed a "Park outside" badge in error. NHTSA's record for this recall has no park-outside advisory, as the article said. The badge came from our page template, not the source, and has been removed.
See our corrections policy.