KiaPartsNow.com offers the wholesale prices for genuine 2006 Kia Optima Produced After SEP.2006 parts. Parts like Spark Plug & Cable 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.