US76 Ford 6.4L Powerstroke Diesel Water Pump. OEM Replacement 8C3Z-8501-B & 8C3Z-8501-C. Fits 2008-2010 model years Ford 6.4L Diesels. F250, F350, F450, F550. It replaces an earlier model with it's higher water volume. This is a new pump, not a remanufactured pump. One year or 100,00 mile warranty from date of purchase. We have been installing this water pump on our customers vehicles with great success.