MoparPartsGiant.com offers the wholesale prices for genuine 1988 Dodge Grand Caravan parts. Parts like Fuel Tank & Fuel Filler are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.5L, 6 Cyl 3.0L. Transmission: 5-Speed Manual Transmission, Automatic Transmission.