GMPartsGiant.com offers the wholesale prices for genuine 2016 Buick Enclave AWD parts. Parts like Automatic Transmission Low And Reverse And 1-2-3-4 Clutch Plate are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.6L. Model Code: SPORT UTILITY VEHICLE AWD.