MoparPartsGiant.com offers the wholesale prices for genuine 2018 Jeep Wrangler All-new Model parts. Parts like Hvac 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, 6 Cyl 3.0L Diesel, 6 Cyl 3.6L. Transmission: 6-Speed Manual Transmission, 8-Speed Automatic Transmission.