FordPartsGiant.com offers the wholesale prices for genuine 2013 Ford F-250 Super Duty parts. Parts like Rear Seat Belts 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: 5-Speed Automatic Transmission 5R110W NAAO, 5-Speed Manual Transmission-Tremec TR4050, 6-Speed Automatic Transmission (6R140).