GMPartsGiant.com offers the wholesale prices for genuine 2017 GMC Terrain parts. Parts like Fuel Supply System are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.4L, 6 Cyl 3.6L. Model Code: SLE1 SUV, SLE2 SUV, SLT SUV.