FordPartsGiant.com offers the wholesale prices for genuine 2019 Ford F-550 Super Duty parts. Parts like Auto hub lock operating mechanism are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 10 Cyl 6.8L EFI, 8 Cyl 6.2L OHC NA, 8 Cyl 6.7L Diesel T/C. Transmission: 6-Speed Automatic Transmission (6R100), 6-Speed Automatic Transmission (6R140).