MoparPartsGiant.com offers the wholesale prices for genuine 1990 Dodge D250 parts. Parts like Brake Master Cylinder are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.9L, 6 Cyl 5.9L Diesel, 8 Cyl 5.2L, 8 Cyl 5.9L. Transmission: 3-Speed Automatic Transmission, 4-Speed Automatic Transmission, 5-Speed Manual Transmission, 8-Speed Automatic Transmission, Open, Open (BEV) Gearbox.