The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the loss of power warning light illuminated. The contact parked the vehicle and turned off the vehicle. The contact attempted to restart the vehicle however, the vehicle failed to start as intended. The vehicle was towed to the dealer where it was diagnosed with a contaminated fuel system. The contact was informed that the fuel system needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure; however, the manufacturer was unable to confirm when parts would become available. The failure mileage was approximately 112,000. VIN tool confirms parts not available.