GMPartsGiant.com offers the wholesale prices for genuine 2021 Cadillac Escalade ESV 2WD parts. Parts like Transmission Vent Hose 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: 1/2 TON.