MoparPartsGiant.com offers the wholesale prices for genuine 2008 Chrysler Pacifica parts. Parts like Wiring - Engine are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.8L, 6 Cyl 4.0L. Transmission: 4-Speed Automatic Transmission, 6-Speed Automatic Transmission.