MoparPartsGiant.com offers the wholesale prices for genuine 2019 Ram 4500 parts. Parts like Brake Tubes And Hoses, Body are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 6.7L Diesel, 8 Cyl 6.4L. Transmission: 6-Speed Automatic Transmission.