FordPartsGiant.com offers the wholesale prices for genuine 2006 Ford F-250 Super Duty parts. Parts like Pulleys and Drive 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 5.4L, 8 Cyl 6.0L Diesel OHV. Transmission: 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 5-Speed Manual Transmission-Tremec TR4050, 6-Speed Manual Transmission M6HD-W, 6-Speed Manual Transmission Z/F S6-650.