MoparPartsGiant.com offers the wholesale prices for genuine 2021 Chrysler Pacifica parts. Parts like Rear Brakes are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.6 L PLUG-IN HYBRID EV-GAS (PHEV).