Safety recall Fuel system

Tiffin recall 26V-662: Fuel Filter Hoses May Disconnect and Leak Fuel

Report received 27 days ago

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.

Campaign facts

NHTSA campaign
26V662000 (26V-662)
Manufacturer number
TIF-150
Filed by
Tiffin Motorhomes, Inc.
Report received
October 8, 2026
Component
Fuel system, diesel:delivery:hoses, lines/piping, and fittings
Vehicles potentially affected
177
Model years
2022–2025
Built between
May 6, 2021 and September 9, 2024
Recall initiated by
The manufacturer

What is 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.

The 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.

Why fuel system defects matter: A fuel leak near an ignition source increases the risk of fire, and a failing fuel pump can stall the engine while driving.

The 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

About the fuel system

The fuel system stores and delivers fuel to the engine; leaks and pump failures are the usual reasons for a recall.

Vehicles covered by campaign 26V-662

  • Tiffin Allegro Bus 2025202420232022
  • Tiffin Phaeton 2025202420232022

What to do

  1. Enter your VIN in NHTSA’s lookup (below) to confirm that your vehicle is included and that the repair has not already been done.
  2. Call a dealer for the brand and book the repair. Quote NHTSA campaign 26V-662 and the manufacturer’s number TIF-150.
  3. If you smell fuel or see a leak, do not drive the vehicle — park it outside, away from buildings, and call the dealer.
  4. Safety recall repairs are carried out free of charge by the manufacturer’s dealers. If you already paid for this repair yourself, ask the manufacturer about reimbursement and keep your receipt.

Check by VIN

A campaign rarely covers every vehicle of a model year. Enter your 17-character VIN to find the recall campaigns filed for your make, model and model year. The VIN is on the driver’s side of the dashboard (visible through the windshield), on the door-jamb label, and on your registration and insurance documents.

Is a recall still open on your vehicle? Only NHTSA’s official VIN check can say whether a campaign applies to your exact vehicle and whether the repair has already been done.

Your VIN is decoded with NHTSA’s public vPIC service to identify the make, model and year. It is not stored and is not added to any page address.

The official record

This page reproduces the campaign as filed with NHTSA. The NHTSA record is authoritative — if anything here differs, follow the agency.

Open campaign 26V-662 on NHTSA.gov

Other Tiffin fuel system recalls