MoparPartsGiant.com offers the wholesale prices for genuine 2006 Dodge Caravan parts. Parts like Fuel Tank Filler Tube are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.4L, 6 Cyl 3.3L. Transmission: 4-Speed Automatic Transmission.