FordPartsGiant.com offers the wholesale prices for genuine 2015 Ford Transit parts. Parts like Thermostat Housing & Related Parts are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 5 Cyl 3.2L Duratorq-TDCi - Puma, 6 Cyl 3.5L GTDI, 6 Cyl 3.7L PFI NA. Transmission: 6-Speed Automatic Transmission (6R80).