KiaPartsNow.com offers the wholesale prices for genuine 2020 Kia Optima parts. Parts like Belt Cover & Oil Pan are shipped directly from authorized Kia dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 1.6L - GAMMA, 2.0L - Theta 2, 2.4L - Theta 2. Body: Sedan - 4Door 5P.