# Other NHTSA \#25E\-004 \(Cummins\)

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Other
- NHTSA id: 11016028
- Published by NHTSA: 2025\-03\-27
- Manufacturer's number: NHTSA \#25E\-004 \(Cummins\)
- Manufacturer's date: 2025\-03\-12
- Campaign id or software version: CSA\-043 \(Tiffin\)
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

CSA\-043 FCCC Chassis with Cummins L9 Engine Low Pressure Fuel Hose Tiffin received from Daimler Campaign \# F1016; Cummins Campaign \# C7111. Cummins Inc. has decided that a defect which relates to motor vehicle safety exists in certain Cummins L9 engines manufactured between 8/4/23 and 12/21/23. Due to a manufacturing error on the low\-pressure fuel hose end crimp fitting, the remote fuel filter hoses installed on the subject engines can become separated from the fuel fitting resulting in fuel leaks and lack of fuel supply to the engine. A fuel hose that becomes disconnected will result in as engine stall increasing the risk of a crash. A fuel leak in the presence of an ignition source may increase the risk of fire. Cummins has released a field Safety Campaign C7111 to correct this condition by replacing the two subject fuel hoses with hoses having improved connector crimps. Repair parts are currently available at Cummin Distributors and authorized Warranty Dealers. Ther repair will be completed free of charge and most applications will require approximately 1 hour to complete. Until the campaign is completed, Cummins advises customer to periodically check the remote fuel filter hoses for signs of leaking, and immediately seek repairs if leaks are identified.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016028-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016028-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Vehicles listed

- 2025 TIFFIN ALLEGRO RED
- 2002 to 2005 TIFFIN PHAETON

JSON: [/v1/bulletins/11016028](/v1/bulletins/11016028)

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