---
title: "26V-662 recall: Tiffin Allegro Bus and Phaeton"
kind: "recall"
source: "nhtsa"
campaignId: "26V-662"
url: "https://www.rigfixhq.com/recalls/26V-662"
markdownUrl: "https://www.rigfixhq.com/recalls/26V-662.md"
---

# 26V-662 recall: Tiffin Allegro Bus and Phaeton

These are official NHTSA recalls. A model year on a campaign is not proof a VIN is included. Owner reports are not included.

**Campaign:** 26V-662
**Manufacturer:** Tiffin Motorhomes, Inc.
**Component:** FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
**Filed:** October 8, 2026
**NHTSA:** https://www.nhtsa.gov/recalls?nhtsaId=26V662

## The problem

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 safety 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.

## 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


## Owner letters

- Owner notification letters are expected to be mailed November 20, 2026.

## Rigs named in this campaign

A model year on this list is not proof a VIN is included.

- 2023 Tiffin Allegro Bus: [year page](https://www.rigfixhq.com/issues/tiffin/allegro-bus/2023) · [markdown](https://www.rigfixhq.com/issues/tiffin/allegro-bus/2023.md)
- 2022 Tiffin Phaeton: [year page](https://www.rigfixhq.com/issues/tiffin/phaeton/2022) · [markdown](https://www.rigfixhq.com/issues/tiffin/phaeton/2022.md)
- 2025 Tiffin Phaeton: [year page](https://www.rigfixhq.com/issues/tiffin/phaeton/2025) · [markdown](https://www.rigfixhq.com/issues/tiffin/phaeton/2025.md)


HTML page: https://www.rigfixhq.com/recalls/26V-662