MoparPartsGiant.com offers the wholesale prices for genuine 2016 Jeep Grand Cherokee parts. Parts like Gearshift Controls are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.0L Diesel, 6 Cyl 3.6L, 8 Cyl 5.7L, 8 Cyl 6.4L. Transmission: 8-Speed Automatic Transmission.