GMPartsGiant.com offers the wholesale prices for genuine 2021 Cadillac Escalade 4WD parts. Parts like Automatic Transmission 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 Diesel, 8 Cyl 6.2L. Model Code: YUKON/DENALI/ESCALADE.