GMPartsGiant.com offers the wholesale prices for genuine 2013 Cadillac CTS Coupe parts. Parts like Automatic Transmission Output Carrier Assembly are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.0L, 6 Cyl 3.6L, 8 Cyl 6.2L. Model Code: 2 DOOR COUPE, V 2 DOOR COUPE.