The contact owns a 2020 Ford F-350. 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 exceeded a reasonable amount of time for the recall repair. The contact stated that the vehicle failed to start intermittently and required several attempts before the vehicle started. The contact stated that while driving approximately 45 MPH, the vehicle lost power and coasted to the side of the road. The vehicle was restarted after several attempts. The vehicle was taken to the dealer and was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced; however, the repair was not covered under the recall. The contact was unable to confirm what repair was completed. The failure recurred the following. The contact stated that the failure had occurred approximately 10 times. The vehicle had not been repaired. The dealer was contacted. The manufacturer was made aware of the failure and referred the contact to the dealer. The failure mileage was unknown. VIN tool confirms parts not available.