KiaPartsNow.com offers the wholesale prices for genuine 2006 Kia Optima Produced After SEP.2006 parts. Parts like Interior Side Trim are shipped directly from authorized Kia dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 2.4L - Theta FF, 2.7L - MU. Body: Sedan - 4Door 5P.