MoparPartsGiant.com offers the wholesale prices for genuine 2010 Dodge Avenger parts. Parts like Rear Floor Pan are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.4L, 6 Cyl 2.7L, 6 Cyl 3.5L. Transmission: 4-Speed Automatic Transmission, 6-Speed Automatic Transmission.