MoparPartsGiant.com offers the wholesale prices for genuine 2012 Dodge Caliber parts. Parts like A/C & Heater Unit are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.0L, 4 Cyl 2.4L. Transmission: 5-Speed Manual Transmission, CVT II.