MoparPartsGiant.com offers the wholesale prices for genuine 2007 Chrysler Pacifica parts. Parts like Pedal Assembly 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.