MoparPartsGiant.com offers the wholesale prices for genuine 2020 Ram 1500 New Style 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 3.0L Diesel, 6 Cyl 3.6L, 8 Cyl 5.7L. Transmission: 8-Speed Automatic Transmission.