The contact owns a 2018 RAM 1500. The contact stated that while driving at an undisclosed speed, the vehicle stalled and lost motive power. The throttle control warning light was illuminated. The vehicle was towed to an independent mechanic where it was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer and was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The contact was informed that the parts were on backorder. The contact received notification of NHTSA Campaign Number: 22V406000 (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 and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was 82,000. Parts distribution disconnect.