MoparPartsGiant.com offers the wholesale prices for genuine 2006 Jeep Liberty parts. Parts like Door, Front, Lock And Controls are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.8L Diesel, 6 Cyl 3.7L. Transmission: 4-Speed Automatic Transmission, 5-Speed Automatic Transmission, 6-Speed Manual Transmission.